SE1651733A1 - Energy distribution system and distributor of the system andmethod of laying out the system - Google Patents

Abstract

The present invention concerns an energy distribution system (1) for heating/cooling at least part of a space (6) by means of fluid distribution for energy exchange with the space. The system comprises at least one first distributor (10) and at least one second distributor (20), and tubing (30) connected between the first distributor and the second distributor to create a fluid flow path between the distributors and to exchange energy between the heating/cooling fluid flowing through the tubing laid out in the space and the space itself. The invention also concerns a distributor (10, 20) for use in the system and a method of laying out the tubing (30) of the energy distribution system (1).

Description

1ENERGY DISTRIBUTION SYSTEM AND DISTRIBUTOR OF THE SYSTEM AND METHOD OFLAYING OUT THE SYSTEM TECHNICAL FIELD The present invention relates to an energy system for facilitating heating or cooling or both ofat least part of a space, such as a residential building, a ship or a swimming pool. The energysystem is at least part of a floor, wall or ceiling or an air ventilating system for heating orcooling at least parts ofthe space. I\/|oreover, the present invention relates to one or moredistributors adapted for use in at least a part of a floor, wall, ceiling or air ventilating systemfor facilitating the heating or cooling of the space, and for use in the energy system providedwith at least one such distributor. The present invention also relates to a method of laying out tubing in at least a part of the space to be heated and/or cooled.

BACKGROUND ART Different ways of heating and/or cooling spaces are known using various types of distributionsystems or installations by which water and/or air is heated using for instance electricalheaters immersed in the water or placed in air flow paths or burners fuelled with gas or oil orby which systems water and/or air is cooled by heat exchange or the like. Such systemscomprises units/devices for subsequently guiding the heated or cooled fluid, e.g. water or air,along diverse paths, commonly various types of tubing or conduits, to heating radiators orceiling or floor heating arrangements or air treatment devices for the spaces. These heatingand/or cooling systems with heated or cooled fluid then transfer heat to surroundings and/orcolder ambient air or absorb heat ofthe surroundings and/or warmer ambient air in suchspaces. The space, such as at least a part of a structural unit in the form of a house, normallyhas its own (domestic) heating and/or cooling system with which at least parts of the space and/or rooms ofthe structural unit is heated and/or cooled in response to energy demand.

Examples of heating systems are central or district heating units used to heat a number ofheating radiators that directly heat ambient air or use one or more heat exchangers arrangedin a structural unit, such as a residential building, to exchange heat with colder fluid in thebuilding to warm the fluid and thereby warm up a space/room or the whole building. Such systems are known, where hot water is guided along heating conduits arranged in a structural 2part, for instance one or more floors, walls or ceilings. The hot water heats the structural part,which in turn transmits the heat to ambient air. A type of system is known as floor heatingsystem that also means a system in which the heating conduits are arranged in a structural part other than the floor, for instance in the wall and/or in the ceiling of the space/room.

A floor heating system is usually provided with hot fluid, such as water via an abovementioned central heating unit, a district heating system or a domestic heating installation. Toprovide this hot water, there is a tube or pipe network ofthe central heating unit, the districtheating or the domestic heating installation to which at least one distributor is in fluidcommunication to guide the incoming hot water to the heating conduits where the actual heatexchange occur in an entity, i.e. the space to be heated, and from which entity at least oneother distributor receives the relatively cold return flow of water after the heat exchange andguide it back to the pipe network of the central heating unit, the district heating or thedomestic heating installation. Then, the relatively cold water is heated again and/or mixedwith supplied hot water coming from the central heating system, the district heating system or the domestic heating installation and returned back to the space if heating is demanded.

Today's technique of distribution systems in the field of heating, ventilation and/or airconditioning (HVAC industry), such as cooling, heating, collectors and/or energy storage arebased on levels of certain adjustments. These adjustments for example of floor heating orheating radiators are controlled by regulators and the regulators ensure the desired indoortemperature in each premise. Distribution systems, such as floor heating with constant flowand non-regulation processes, have been tested in different purposes and in minor scale. Theirdisadvantages have been too high flow rate, too low temperatures (biologic growth) and un-adjustability complications as balance valves have been used to compensate for flow, pressure and/or temperature variations, which have been done unsatisfactorily.SUMMARY OF THE INVENTION One object ofthe present invention is to provide an energy distribution system, which is cost and energy efficient in its construction and functionality.

Another object of the present invention is to provide an energy distribution system, which has the ability of quicker switch/change of current heat exchange in response to a new demand on 3supplied or withdrawn energy in at least a part of a space to be heated or cooled compared to prior art.

Yet another object of the present invention is to provide an energy distribution systemcomprising at least one heating/cooling source, which energy distribution system itself is ableto regulate the indoor climate (as well as any energy storage and any collector) by means ofthe heating/cooling source. The effects are higher energy efficiency and better temperature gradients (comfort) due to utilization of lower temperature differences in the surroundings.

Another object of the present invention is to provide an energy distribution system with verylow energy loss, whereby the need of any valves in any of its distributors for compensating orbalancing variation in pressure and/or temperature and/or fluid flow through the system, its tubing and any of its distributors is eliminated.

Still another object of the present invention is to provide a very simple pressure stabilizer,which optionally is fixedly or adjustably arranged, inside at least one distributor, i.e. amanifold, of the energy distribution system to ensure correct fluid flow to each tube/pipe ofthe system eliminating the need of any valves in any of its distributors, not even at any of thein- and/or outlets of the distributor, for compensating, i.e. balancing variation in pressureand/or temperature and/or fluid flow through the system and any of its distributors and associated components, such as its tubing for heat exchange.

One other object of the invention is to provide corresponding/substantially the same (withinthe technical field)/the same/equal length ofthe tubing or each tube/pipe ofthe energy distribution system to make sure that losses/falls/decreases in pressure are the same.

Another object of the present invention is to provide a secure fluid/water sealing at one ormore or each of the in- and/or outlets of at least one or more or each, i.e. all distributors of the energy distribution system to ensure minor fluid/water leakage therefrom.

One object ofthe invention is to provide one or more distributors of the energy distributionsystem with as many inlet/outlet connections as possible to make regulation in the system assimple, quick and reliable as possible due to a relatively bigger difference in size/volume/area between each individual in-/outlet and the whole distributor compared to prior art. 4 Yet another object ofthe invention is to provide an energy distribution system with tubing laidout with at least 5 - 12 m of tubing per m2 of space/area to be heated/cooled compared tostandardized systems using about 2 - 4 m/mz, whereby the inventive system enables using atotally higher flow and a lower temperature difference achieves using pattern oftubing withvarying density/compactness for varying heat exchange depending on differing energydemands in a space to be heated or cooled. This enables using a denser pattern of laid outtubing for one part ofthe space and a less dense pattern of laid out tubing for another part ofthe same space to optionally achieve heat exchange that is adapted to differing energy demands in different parts ofthe space to be heated or cooled.

Still another object of present invention is to provide an energy distribution system utilizing alower temperature range and temperature difference for heat exchange, i.e. about 2-6 K (AT)compared to prior art systems utilizing about 10-15 K (AT), achieving an energy distribution system that is very interesting for use in future heat pump industry and low energy buildings.

According to a first aspect of the present invention, these objects are achieved by an energydistribution system for heating/cooling a space, at least partly, such as a residential building, aship or a swimming pool, by means of fluid distribution for energy exchange betweendistributed fluid and at least a part of the space, comprising at least one first distributorcomprising an inlet adapted for receiving heating or cooling fluid by means of a fluid inlet forfluid inflow, at least one second distributor comprising an outlet adapted for dischargingheating or cooling fluid by means of a fluid return outlet for fluid outflow, and tubingconnected between outlets of the first distributor and inlets of the second distributor tocreate a fluid flow path between the distributors to enable exchange of energy between theheating/cooling fluid flowing through the tubing laid out in the space and the space, wherein the tubing comprises tubes of corresponding or substantially same or equal or same length. ln one embodiment, the tubing comprises at least 5 to 12 m or 6 to 12 m of tubing, preferablyat least 6 to 9 m oftubing, more preferably 6 to 8 m of tubing, or most preferred 6.5 to 7.5 mof tubing per m2 of at least the part of the space to be heated or cooled. The ranges of tubinglength per m2 are applicable for a whole space or more than one space if a space is one room and another space is another room. 5ln another embodiment, the tubing comprises at least one or more tubes having an innerdiameter smaller than 10 mm; preferably smaller than 7 to 9 mm; more preferably smallerthan 6 to 7 mm; or most preferably smaller than or about or equal to 5 to 6 mm or 4 to 5 mmor 3 to 4 mm or 4 mm. Optionally, each tube ofthe tubing is within any of above inner diameter ranges or has the above inner diameter. ln one embodiment, the tubing comprises at least one or more tubes having an inner diameterlarger than 2 or 3 mm; preferably larger than 4 mm; or more preferably larger than 5 mm.Optionally, each tube of the tubing is within any of the above inner diameter ranges or has any of the above inner diameters. ln still another embodiment, at least one distributor comprises at least one rail arrangedinside the distributor, the rail being configured to compensate varying pressure in the fluidflow through the distributor by decreasing its inner volume in the fluid flow direction from its first in-/outlet to its last in-/outlet in relation to the size or volume of each in-/outlet.

According to one embodiment, the rail is fixedly arranged inside the at least one distributor or each distributor for decreasing the inner distributor volume.

According to a further embodiment, the rail is at least partly movable inside the distributor bymeans of a mechanism in a direction towards or from the in- or outlets of the distributor todecrease the inner distributor volume in response to pressure varying from the first in-/outletto the last in-/outlet of the distributor. This mechanism is adjustable manually or by means ofbias/power means, such as an electrical motor or a spring or the like, optionally by means of wireless control, such as Bluetooth® utilized by a user to control the electrical motor.

According to an embodiment, the rail is linearly movable inside the distributor to decrease the inner distributor volume when the rail is moved towards the distributor in-/outlets.

According to yet a further embodiment, each distributor of the system comprises at least one pressure compensating rail.

Optionally, one or more or each rail of the distributor is formed with a straight/linearextension/shape or a bent or curved shape or comprises a combination of such shapes and/orcomprises a shape with a varying curve and/or bend and/or is shaped as a wedge with any of these shapes or a combination ofthese shapes creating an angled inner wall of the distributor 6past which fluid flows and/or is the rail adjustable/movable so that it is configured to bearranged at different positions creating varying angles and/or shapes/sizes of the inner volume of the distributor through which fluid flows.

According to still another embodiment, each distributor comprises at least one connectingpart with outlets or inlets configured to connect to the tubing, which connecting part comprises at least one female section at each individual in- or outlet. ln one other embodiment, each tube of the tubing comprises at least one female member ateach of its ends, each female member being configured for sealed mating with at least one corresponding female section of the connecting part of any distributor. ln another embodiment, the energy distribution system comprises at least one separatedetachable sealing configured to sealingly fit between a female member of one tube end anda corresponding female section of at least one distributor when the tube end is connected to the female section. ln yet another embodiment, each female section is configured as a groove at and around each individual in- or outlet of the distributor. ln still another embodiment, each female member is configured as a groove at and around each individual end of each tube of the tubing. ln accordance with another embodiment, one or more or each or all tubes of the tubing is/are made of Ethylene Propylene Diene I\/|onomer rubber (EPDM). ln accordance with yet another embodiment, one or more or each or all tubes of the tubing is/are made of Cross-linked Polyethylene (PEX).

According to a further embodiment of the energy distribution system as above, one or morebut one and the same distributor comprises at least two rows of in- or outlets. Hence, one ormore inventive distributors are usable in the system and one and the same distributor comprises at least two or more rows of in- and/or outlets. The rows and/or in-/outlets of the distributor do not have to be exactly aligned or extend exactly in parallel with each other. ln another aspect of the present invention, these objects are achieved by a distributor in an energy distribution system according to the above aspect and any of the above embodiments 7for heating/cooling, at least partly, a residential building, a ship or a swimming pool, wherein one and the same distributor comprises at least two rows of in- and/or outlets. ln one embodiment, in the distributor, in-/outlets of one in-/outlet row are displaced at adistance from the in-/outlets of another row of in-/outlets in a direction substantially perpendicular to and/or in parallel with the longitudinal direction of the distributor. ln accordance with another embodiment, in the distributor, each in- or outlet of each in-/out-let row is displaced at corresponding or substantially same or equal or same distance from each other along each row.

According to yet another embodiment, in the distributor, the in- or outlets of the at least twoin-/outlet rows are arranged so that a zigzag or staggered pattern of the in-/outlets along the distributor is achieved. ln an embodiment, in the distributor, the at least two in- or outlet rows are displaced from each other in a direction substantially perpendicular to the longitudinal distributor direction. ln still another embodiment, the connecting part of the distributor comprises at least 2 to 8 in-or outlets or preferably at least 3 to 7 in- or outlets or more preferred at least 3 to 6 in- or out- lets or most preferred 3 to 5 or 3 to 4 in- or outlets per 50 mm length ofthe distributor.

According to one embodiment, the distributor comprises at least one inner rail configured tocompensate varying pressure in the fluid flow through the distributor by decreasing its innervolume in the fluid flow direction from its first in-/outlet to its last in-/outlet in relation to the size of each individual in-/outlet. The in-/outlet size is volume and/or area and/or diameter. ln accordance with another embodiment, inside the distributor, the rail is fixedly arranged todecrease the inner distributor volume in response to fluid pressure varying from the first distributor in-/outlet to the last in-/outlet of the distributor.

According to still another embodiment, inside the distributor, the rail is at least partly movableby means of a mechanism in relation to the in- or outlets to enable decreasing the inner distributor volume in response to varying fluid pressure inside the distributor. ln one more embodiment, inside the distributor, the rail is linearly movable, at least partly, whereby the inner distributor volume is decreased when the rail is at least partly moved 8towards its in- or outlets. The movement ofthe inner rail is done axially and/or radially, i.e. inrelation to the longitudinal axis of the distributor and/or in relation to the |atera| or perpendicular to the lengthwise direction ofthe distributor. ln one embodiment, the distributor comprises a connecting part with in- and/or outlets, theoutlets enabling fluid to flow to at least parts of the space for energy exchange therewith andthe inlets ena bling fluid to flow from the space after energy exchange, the connecting part comprises at least one female section at each individual inlet or outlet for sealing. ln another embodiment, the connecting part of the distributor comprises at least one femalesection at each individual outlet or inlet, the female section being configured to receive atleast one sealing adapted to sealingly fit against the female section. Optionally, each femalesection of the corresponding outlet or inlet of the connecting part is configured to sealingly mate with at least one such sealing.

According to still another embodiment, each female section is configured as a groove at and around each individual in-/outlet ofthe distributor.

According to yet another aspect of the present invention, these objects are achieved by amethod of laying out tubing of an energy distribution system for heating/cooling at least partof a space, e.g. a residential building, ship or swimming pool, according to any of the aboveaspects and embodiments, the method comprising laying out the tubing at/over/on/in a floor,wall or roof or air condition unit in a pattern with different layout for the tubing in the spacewith relative distance between the tubing being smaller in an area of at least the part of thespace having a higher energy demand and larger in another area ofthe space having a lowerenergy demand, whereby a more dense pattern oftubing is formed in the area with higherenergy demand and a less dense pattern of tubing is formed in the area with lower energy demand.

According to one embodiment, the method comprises connecting the tubing to at least firstand second distributors, adapting the tubing into corresponding or substantially same or equalor same lengths fitted to be laid out at/over/on/in the floor, wall or roof or air conditioning unit in the pattern with different layout for the tubing in the space and laying out the tubing 9with tubes having corresponding lengths or substantially same length or equal length or the same length. ln another embodiment, the method comprises connecting a first end of each tube of thetubing to an associated outlet of a first distributor, adapting (e.g. by cutting) each tube of thetubing into corresponding or substantially same or equal or same lengths fitted to be laid outat/over/on/in a floor, wall or roof or air conditioning unit in a pattern with different layout foreach ofthe tubes in the space, laying out each tube ofthe tubing in the pattern adapted to therequired demand on heating/cooling of the space, and connecting the second end of each tube ofthe tubing to an associated inlet of a second distributor before or after the layout. ln yet another embodiment, the method of laying out tubing of an energy distribution systemcomprises connecting the first end of a first tube of the tubing to a first outlet of a firstdistributor, adapting the first tube of the tubing into the length fitted to be laid outat/over/on/in a floor, wall or a roof or air conditioning unit in a first pattern in the spacebefore or after connecting the first end of the first tube of the tubing to the first outlet of thefirst distributor, laying out the first tube of the tubing in the first pattern adapted to therequired demand on heating/cooling ofthe space, connecting the second end of the first tubeof the tubing to a first inlet of a second distributor before or after the layout thereof,connecting a first end of a next tube of the tubing to a next outlet of the first distributor,adapting the next tube of the tubing into a length corresponding to the length of the first laid-out tube of the tubing fitted to be laid out at/over/on a floor, wall or a roof in a next pattern inthe space before or after connecting the first end of the next tube of the tubing to the nextoutlet of the first distributor, laying out the next tube of the tubing in the next patternadapted to the required demand on heating and/or cooling of the space, connecting thesecond end of the next tube of the tubing to another inlet of the second distributor before orafter the layout thereof, and repeating the above steps until all tubes of the tubing are laid out and connected to the distributors. Adaption oftube length may be done by cutting.

Advantages/Effects of the above aspects and solutions thereto are for example the below:Valves in the distributor/-s ofthe system are eliminated reducing the number of pressure lossincreasing components. As valves in the distributor/-s ofthe system is/are eliminated one or more valveless distributors are created.

By use of corresponding and/ or equal and/or same length for the tubing of the inventivesystem, an equaI/compensated/corresponding pressure is enabled in the tubing for energyexchange, i.e. equal/same pressure is achieved in the tubing ofthe inventive system. Hence,an equaI/compensated/corresponding pressure in the tubes of the tubing for energy exchange, i.e. equal/same pressure is achieved in each tube of the tubing in the system.

A more efficient fluid flow, i.e. full flow of fluid through the inventive system is enabled as thesize, dimension, and/or diameter (inner and/or outer diameter) of tubing and each individual in- and/or outlet of the/each distributor is smaller in relation to prior art.

By using one or more inner rails in the distributor, a lesser fluid pressure loss/variation isgenerated from a first in- and/or outlet to another in- and/or outlet up to the last in-/outlet inthe direction of fluid flow through the distributor. Hence, an optimal pressure and fluiddistribution is achieved within the distributor. The rail as fixed similar to an angled inner wallof the distributor past which fluid flows achieves this and/or if the rail is adjustable/movableso that it is configured to be arranged at different positions and/or angles it is easy to vary itsangle and the inner volume ofthe distributor at the correct and optimal positions where fluidflows to facilitate the optimal pressure and fluid distribution even further depending on theneed ofthe system application. This is further enhanced by providing the distributor with the mechanism for adjustment of the position and/or angle of the inner rail.

A more efficient fluid flow, i.e. full flow of fluid through the inventive system comprising atleast one or more inventive distributors or each distributor is an inventive one is enabled asthe size, dimension, and/or diameter (inner and/or outer diameter) of tubing and each individual in- and/or outlet of the/each distributor is smaller in relation to prior art.

A larger inner volume of at least one or each distributor in relation to the size, dimension,and/or diameter of each individual in- and/or outlet of the/each distributor is achieved, aseach in-/outlet of the/each distributor of the invention is smaller in relation to prior art. Thisenables arranging a larger number of in- and/or outlets on the distributor, i.e. a higher density of in-/outlets on the inventive distributor is achieved compared to prior art.

By arranging at least one or more distributors with smaller size, dimension and/or diameter of each of its individual in- and/or outlets a larger inner volume of at least one/each distributor in 11relation to its individual in- and/or outlets a lesser pressure loss/variation is generated from afirst in- and/or outlet to another in- and/or outlet up to the last in-/outlet, i.e. step-wise, in the direction of fluid flow through the/each distributor.

By arranging at least one or more or all distributors with smaller size, dimension and/ordiameter of each of its individual in- and/or outlets a larger inner volume of at least one/eachdistributor in relation to its individual in- and/or outlets is achieved, whereby an equal orcompensated or corresponding fluid pressure and/or pressure variation and/or pressure lossthrough the distributor is generated. Hence, a self-regulating ability of the energy exchangebetween at least part of a space to be heated and/or cooled and the tubing with hot/cold fluidof the system is achieved. This together with at least one valveless distributor generate anequal and compensated fluid pressure, pressure variation, and pressure loss through the atleast one distributor and tubing of the system, and creates a self-regulating ability of the energy exchange between the space to be heated/cooled and the tubing of the system.

By use of corresponding/equaI/substantially same/same length for the tubing of the inventive system faster flow of fluid through the system is achieved.

By use of smaller sized tubing in the inventive energy distribution system, such as smallerdiameter, i.e. smaller inner and/or outer diameter of tubes of the tubing of the system,compared to prior art a faster flow of fluid through the system is utilized, and a quicker switchbetween different energy demands and quicker response to variation in energy demands of aspace to be heated/cooled are accomplished. The chosen size, i.e. the smaller tube diameter used in the invention depends on tube thickness, type oftubes and tube material.

Use of faster flow of fluid through the inventive system with or without an inventivedistributor enables use of a lower fluid temperature, whereby energy loss is reduced in theinventive system. This also means that less insulation is required around/in the inventivesystem. Moreover, this enables faster switch between present energy exchange and a new one due to a change of demand for energy.Use of lower fluid temperature in the inventive system achieves a lower use of energy.

Use of faster flow of fluid through the inventive system achieves better comfort to residents of a space being heated and/or cooled by use ofthe inventive system due to quicker switching, 12i.e. response to varying energy demand by means of the inventive distributor and by the system when comprising at least one such distributor.

By use of corresponding/equal/same length for the tubing of the inventive system a higher pressure of fluid through the system is achieved.

Use of higher fluid pressure throughout the system enables use of a lower fluid temperatureand faster fluid flow, whereby energy loss is reduced in the inventive system. Hence, lessinsulation is required around/in the system. Hence, a faster switch between present energyexchange and a new one due to a change of demand for energy according to the inventive system is enabled. This also achieves a lower use of energy.

Use of higher fluid pressure through the inventive system achieves better comfort to residentsof a space being heated and/or cooled by use of the inventive system due to quicker response,i.e. switching to varying energy demand by means of the distributor and the system comprising at least one such distributor.

The present invention relates to an energy system for heating or cooling or both of at leastone or more parts of a space, such as a residential or industrial building, a ship and/or aswimming pool. The energy system is utilized in at least one or more parts of a floor, walland/or ceiling and/or an air ventilating system of the space. The present invention relates toone or more distributors adapted for use in such floor, wall, ceiling and/or air ventilatingsystems, and to such an energy system with or without at least one such distributor. ln someaspects, the inventive energy system comprising fluid carrying tubing and at least oneinventive distributor is used to heat and/or cool surfaces and/or volumes, e.g. by the tubingenclosed in at least one or more parts of floors, walls and/or ceilings of the space directly or toindirectly cool and/or heat the space by heating and/or cooling ventilating air coming into orbeing withdrawn out of the space by passing the air through/past the tubing for heatexchange. The features of the inventive distributor is freely combinable with the inventivesystem as the distributor is easily added to the inventive system to improve its abilities, however, the inventive system is possible to use with other distributors. 13BRIEF DESCRIPTION OF THE DRAWINGS ln the following detailed portion of the present description, the invention will be explained in more detail with reference to the different aspects shown in the drawings, in which: Fig. 1 is a perspective depiction of at least a part of a space to be heated or cooled by means of aspects of the present invention.

Fig 2 is a sectional view from above of a part of the space in Fig. 1, i.e. as seen in a directionsubstantially perpendicular to the plane of a surface of the space, such as a floor in a room,according to aspects of the present invention, which surface is shown as a horizontal floor inthis Fig 2 but may likewise be part of a vertical wall or part of an upper ceiling of the space (not shown).

Fig. 3A is a side view of a part ofthe space in Fig 1, where components to the right in Fig 1 and in the lower left corner of Fig 2 of the present invention are shown in more detail.

Fig. 3B is a side view of a part of the space in Fig 1, where components to the right in Fig 1 and in the lower left corner of Fig 2 of the present invention are shown in more detail.

Fig 4A is a side view of at least one component of Figs. 1, 2, and 3B being partially shown in section to reveal its inside with a mechanism according to one aspect of the present invention.

Fig 4B is a perspective partial view of at least one component of Figs. 1, 2, and 3B partially shown in section to reveal its inside according to another aspect of the present invention.

Figs. 5 and 6 show side views of the components in Figs. 1, 2, 3A and 3B to better reveal aspects and principle according to the present invention.

Fig 7A is a view ofthe lower end/part of at least one component in Figs. 1 to 6 according to one aspect of the present invention.

Fig 7B is a view ofthe lower end/part of at least one component in Figs. 1 to 6 according to another aspect of the present invention.

Fig 8 is a perspective view of the lower end/part of the component shown in Figs. 7A and 7B in more detail according to aspects of the present invention. 14Fig 9 is a partly sectional and perspective view of the lower end/part of the component shownin Figs. 7A, 7B and 8 in more detail for illustration of location of a device of the component according to aspects of the present invention.DETAILED DESCRIPTION Figures 1 to 9 show an energy distribution system 1 and associated components according tothe invention. This system 1 is in energy communication/exchange with at least a part 7 of aspace 6 that is either to be heated or cooled by means ofthe inventive system 1 in response tothe energy demand ofthe space. The type of space 6 is of no importance to the invention, thespace 6 may be large or small or more than one or be one large space divided into sections orgroups or similar. The space 6 is commonly at least part of a residential or industrial building(not shown) or at least part of a ship or at least part of a swimming pool to be heated orcooled. The part 7 ofthe space 6 is at least part of a floor or wall or ceiling (not shown) of the space 6 or at least part of an air ventilating system (not shown).

The inventive energy system 1 has a purpose of heating/cooling the space 6 by means of fluiddistribution for energy exchange between fluid and structural entities, directly or indirectly,and/or between fluid and ambient air directly or indirectly via the structural entity. Therefore,the system 1 comprises a heating and/or cooling source or system or unit 8 configured to heatand/or cool fluid, such as water or a mix of water and substance for preventing ice formationif low temperatures of fluid are utilised. The heating and/or cooling unit 8 is for instance adistrict heating or central heating unit or domestic heating unit, when used for heating fluid, or a heat pump for fluid or an air heat pump when cooling the fluid.

The type of heating/cooling unit 8 is not of great importance in relation to the invention, itspurpose is to supply warmer or colder fluid to at least the part 7 of the space 6 for heatexchange therewith and to receive warmer or colder fluid from the part 7 of the space 6 afterthe heat exchange and to heat or cool the fluid that is returned from the space, in response tothe energy demand ofthe space 6, and to supply fluid, either colder or warmer, anew to thespace if demanded. The essence of the heating/cooling unit 8 is to supply heated or cooledfluid within a low temperature range and in a higher pressure range and/or higher flow rate,e.g. water/fluid flow rate boundaries reaching from 0.8 to 1.4 l/min of each tube/pipe of tubing ofthe inventive system having a denser pattern oftubes, i.e. the invention uses more tubing per unit area than in prior art, which tubes actualize heat exchange with the space 6 tobe heated or cooled means that more f|uid per unit of time is passed through the spaceduring heat exchange according to the invention compared to prior art. As an example is atleast 5 m of tubing used in accordance with the invention for the same space/area whereabout 2 m oftubing is used in prior art. Hence, the difference at a utilized f|uid flow of 1.2l/min is for the invention = 5 - 1.2 - 60 = 360 l/h (1.2 l/min and 5 m tubing) versus 2 - 0.85 - 60 =102 l/h for the prior art (0.85 l/min and 2 m tubing). This is commonly translated into a totalf|uid flow per m2, as following, i.e. 0.8 - 1.4 l/min is translated to 10 - 20 l/(mz - h) for theinvention while prior art uses 4 - 6 l/(mz - h). This distinguishing difference between theinvention and prior art in combination with utilization of a low temperature range of 2 to 6 K(AT) according to the invention compared to prior art systems utilizing about 10-15 K (AT) havethe effect that more than 100 times of turnover per hour are achieved by use ofthe inventive energy distribution system compared to less than 20 turnovers per hour for prior art systems.

As shown in figures 1 to 9, the energy distribution system 1 comprises at least one or moredistributors 10, 20. A first distributor 10 comprises at least one main inlet 12 for receivingheated and/or cooled f|uid by means of a f|uid inlet 4 for f|uid inflow 2 downstream of/from aheating or cooling system/unit 8. The warm/heated or cold/cooled f|uid is lead from the firstdistributor further into tubing or tubes or conduits 30 of the system 1. Tubing 30 enables thef|uid to exchange heat with at least the part 7 of the space. The energy distribution system 1also comprises at least one second distributor 20. The second distributor 20 comprises a mainoutlet 22 for discharging the heated or cooled f|uid by means of a f|uid return outlet 5 for f|uidoutflow 3 after the heat exchange in the space 6 and back to the heating/cooling unit 8. Thesystem 1 comprises at least one pump 9 for biasing the f|uid through the system 1 and itstubing 30 and distributors 10, 20 and the heating/cooling 8. The system 1 comprises furthercomponents, e.g. different types of valves, such as shutoff valves, and/or more than one pump9 as applicable, and conduits and tube/pipe fittings and regulators, such as thermostats 70and the like, which also are empowered by electrical means to be functional and controlled byat least one control unit, however, such components and control of energy distributionsystems are well known to the skilled person and will not be explained in detail. One or morethermostats is applicable, such as one indoor thermostat 70 in the space to the left in Fig. 1 and/or one outdoor thermostat 70 to the right in Fig. 1. One or more or all thermostats 70 is in 16operative connection with the heating/cooling source 8 and any control unit (not shown) bymeans of wiring or wireless communication for enabling the functionality of the energy distribution system 1.

According to the system 1 shown in figures 3 to 9, the tubing 30 is detachably connectedbetween out|ets 13, 13', X, X' of the first distributor 10 and inlets 23, 23', X", X"' ofthe seconddistributor 20. This creates a communicating f|uid flow between the distributors to enableexchange of energy between the warm/cool f|uid flowing through the tubing and the space 6.According to one aspect of the invention, tubing 30 comprises tubes of corresponding length L(see figs. 5 and 6). According to another aspect of the invention, tubing 30 comprises tubes ofequal length L (see figs. 5 and 6). According to yet another aspect of the invention, tubing 30comprises tubes having substantially the same length L (see figs. 5 and 6). According to yetanother aspect of the invention, tubing 30 comprises tubes having the same length L (see figs.5 and 6). According to still another aspect of the invention, the tubing 30 comprises tubes ofwhich all tubes are of corresponding length L (see figs. 5 and 6) or each tube has a length Lcorresponding to the other tubes. According to one more aspect of the invention, tubing 30comprises tubes of which all tubes have equal length L (see figs. 5 and 6) or each tube hasequal length L. According to yet another aspect of the invention, tubing 30 comprises tubeswhich all tubes have the substantially same length L or the same length or each tube has substantially the same length or the same length L as the other tubes.

The inventive energy system 1 comprises a heating and/or cooling source or system or unit 8configured to heat and/or cool f|uid, such as water or a mix of water and substance forpreventing ice formation if low temperatures of f|uid are utilised. The heating and/or coolingunit 8 is for instance a district heating or a central heating unit or a domestic heating unit,when used for heating f|uid, or a heat pump for f|uid or an air heat pump or an air con-ditioning unit. The type of heating/cooling unit 8 is in principle not of importance in relation tothe invention, its purpose is to supply low temperature f|uid to at least the part 7 of the space6 for heat exchange therewith and to receive warmer or colder f|uid from the part of thespace after the heat exchange and to heat or cool the f|uid that is returned, in response to the energy demand ofthe space 6, and to supply f|uid anew to the space if demanded. 17 For simplicity, the following description of the inventive system 1 will focus on heating and/orcooling of at least part of a floor or one or more floors ofthe space 6, but is equally applicableif heating and/or cooling of at least part of a wall or one or more walls ofthe space 6 and/or ifheating and/or cooling of at least part of a ceiling or one or more ceilings of the space is to beperformed. The fluid used for this is commonly low temperature water. As seen in figs. 1 to 6,heated or cooled water is supplied from the heating and/or cooling unit 8 by means of at leastone water pump 9 via conduits as a fluid inflow 2 into the first distributor 10 and guided viathis first distributor 10 through its inlet 12 and fluid inlet 4 and its inner volume to its outlets13, 13', X, X' and lead further to the tubing 30, i.e. a number of conduits Y arranged in thefloor 7 of the space 6 that is a residential building (see fig 1). Then, the "warm" or "cold"water, but still at low temperature, of the tubing 30 arranged in the floor exchanges heat withthe floor 7. The floor either radiates heat and heats ambient air, if the space 6 is to be heated,or absorbs heat and cools ambient air/surroundings, if the space 6 is to be cooled, wherebythe thereafter warmer or colder water flows further and into the second distributor 20 via itsinlets 23, 23', X", X"' after the heat exchange. The water is then lead through the inner volumeof the distributor 20 and out through its outlet 22 and return outlet 5 as a fluid outflow 3 viaconduits back to the heating/cooling unit 8. Tubing 30 are arranged as fluid carrying channelsarranged in for example a concrete floor or the covering ofthe floor provided thereon or clamped to an intermediate or upper layer of the floor 7 depending on the floor configuration.

The energy distribution system 1 comprises one or more first and/or second distributors 10,20 of fluid. The inventive energy distribution system 1 is characterised in that the tubing 30comprises tubes of corresponding or substantially same or equal or same length. The length oftubing 30 is at least 5 to 12 m or 6 to 12 m of tubing 30 per m2 of at least the part 7 of thespace 6 or the whole space to be heated and/or cooled. The length oftubing 30 is preferablyat least 6 to 9 m oftubing per m2 of at least the part 7 ofthe space 6 or the whole space to beheated and/or cooled. The length of tubing 30 is more preferably 6 to 8 m oftubing per m2 ofat least the part 7 of the space 6 or the whole space to be heated and/or cooled. The length oftubing 30 is most preferred 6.5 to 7.5 m oftubing per m2 of at least the part 7 ofthe space 6 or the whole space to be heated and/or cooled.

One or more or each distributor 10, 20 comprise/-s at least one or more inner rails 11, 21 to compensate for varying pressure in the fluid flow through the distributor by enabling altering, 18 i.e. decreasing the inner distributor volume in the fluid flow direction from its first in- and/oroutlet 12, 13, 23 to its last in- and/or outlet 22, X, X'. The pressure compensation is achieved inthat the larger inner distributor volume in relation to the size of each in-/outlet is decreasedalong the flow direction there through. The rail11, 21 is optionally at least partly movableinside its associated distributor 10, 20 by means of a mechanism 60 in a direction towards orfrom the in- or outlets 13, 13', 23, 23', X, X', X", X"' of the distributor to decrease its innervolume in response to pressure varying from its first in- and/or outlet 12, 13, 23 to the last in-and/or outlet 22, X, X' of the distributor. Optionally, the rail 11, 21 is fixedly arranged insideone or more distributors 10, 20 to decrease its inner volume in response to fluid pressurevarying from its first in- and/or outlet 12, 13, 23 to its last in-/outlet 22, X, X'. Optionally, thesystem 1 comprises one or more distributors 10, 20 with a fixedly attached rail 11, 21 and/orone or more distributors 10, 20 with a movable/adjustable rail11, 21 or comprises distributors10, 20 ofwhich each distributor comprises at least one pressure compensating rail 11, 21 that may be either fixed or adjustable.

To connect the tubing 30 with the distributor 10, 20, the distributor comprises at least one ormore connecting parts 100, 200 with outlets 13, 13', X, X' or inlets 23, 23', X", X"' configuredfor connection to the tubing. The connecting part 100, 200 is seen as a lower part of thedistributors of figs. 3 and 4. To secure that no leakage of fluid/water occurs between thetubing 30 and the connecting part 100, 200, the connecting part comprises at least one ormore female sections 40 at each individual in- or outlet 13, 13', 23, 23', X, X', X", X"'. Such afemale section 40 is shown in more detail in figs. 4B, 8 and 9. To enable this guaranteedfluid/water sealing between tubing and distributor, at least one or more or each tube ofthetubing 30 comprises at least one or more female members 33 at one or each/both of its ends31, 32. The female member 33 is configured for sealed mating with the associated at least oneor more female sections 40 of the connecting part 100, 200. To facilitate fluid/water sealingbetween the tubing 30 and each distributor, the inventive system 1 comprises at least one ormore separate and detachable sealings 50. This sealing 50 is configured to sealingly fitbetween the female member 33 of a tube end 31, 32 and a corresponding female section 40ofthe distributor 10, 20 when tube end and female section are connected. At least one ormore or each female section 40 is configured as a groove at and around each individual in- or outlet 13, 13', 23, 23', X, X', X", X"' ofthe distributor 10, 20. To accomplish the sealing, at least 19one or more or each female member 33 is configured as a groove at and around each end 31, |H 32 of each tube individually of the tubing 30. The sealing 50 has a "cavity-sea for improved water/fluid/liquid/oxygen barrier.

One or more of the distributors 10, 20 comprises at least two or more rows 14, 15, 24, 25 ofin- or outlets 13, 13', 23, 23', X, X', X", X"'. Each and/or one and the same distributor 10, 20comprises at least two or more rows 14, 15, 24, 25 of in- or outlets 13, 13', 23, 23', X, X', X",X"'. For one or more or each distributor 10, 20, the in- and/or outlets 13, 13', 23, 23', X, X', X",X"' of one in- and/or outlet row 14, 24, 15, 25 are displaced at a distance D, D' from the in-and/or outlets of another row of in- and/or outlets in a direction substantially perpendicularto and/or in parallel with the longitudinal direction of the associated distributor. ln one ormore or each distributor 10, 20, each in- or outlet 13, 13', 23, 23', X, X', X", X"' of each in- oroutlet row 14, 24, 15, 25 is displaced at corresponding or equal or same distance D, D' fromeach other along each row. ln one or more or each distributor 10, 20, the in- or outlets 13, 13',23, 23', X, X', X", X"' ofthe at least two in-/outlet rows 14, 24, 15, 25 are arranged so that azigzag and/or staggered pattern ofthe in-/outlets along the distributor is achieved. ln one ormore or each distributor 10, 20, the at least two in- or outlet rows 14, 24, 15, 25 are displacedat a distance D"" from each other in a direction substantially perpendicular to the longitudinaldirection ofthe associated distributor. ln one or more or each distributor 10, 20, its or theirconnecting part 100, 200 comprise/-s at least 2 to 8 in- or outlets 13, 13', 23, 23', X, X', X", X"'per 50 mm length of the distributor 10, 20. ln one or more or each distributor 10, 20, its ortheir connecting part 100, 200 comprise/-s preferably at least 3 to 7 in- or outlets per 50 mmlength ofthe distributor 10, 20. ln one or more or each distributor 10, 20, its or theirconnecting part 100, 200 comprise/-s more preferred at least 3 to 6 in- or outlets per 50 mmlength ofthe distributor 10, 20. ln one or more or each distributor 10, 20, its or theirconnecting part 100, 200 comprise/-s most preferred 3 to 5 or 3 to 4 in- or outlets per 50 mmlength ofthe distributor 10, 20. The in- or outlets 13, 13', 23, 23', X, X', X", X"' of thedistributor 10, 20 are arranged along the length LD and width ofthe distributor in the followingway (with reference to figs. 7A and 7B). The in-/outlets 13, 13', 23, 23', X, X', X", X"' of thedistributor 10, 20 are arranged at a distance D" and/or D"' from the edge/ends of the distributor along the length LD and/or width of the distributor.

The distances D or D' in figs. 7A and 7B between in- or outlets 13, 13', 23, 23', X, X', X", X"'along the length ofthe distributor 10, 20 is dimensioned with corresponding/equal/the samedistance or different distances, i.e. distance D is either different to distance D' or correspondsto or is equal/same distance. The distance D" from any end ofthe distributor 10, 20 to the firstor last in-/outlet 13, 13', 23, 23', X, X', X", X"' along the length ofthe distributor is laid out withcorresponding/equal/ same distance or a different distance as distances D and D' (distance D"is only shown as measured from one end of the distributor but may be measured from eitherend or both distributor ends). The arrangement of the distances D, D', D" along the length ofthe distributor 10, 20 is uniform or regularly or equally divided to achieve an optimal innerpressure distribution. The distances are also dimensioned, i.e. adapted to the length LD ofthedistributor. The distances D"' or D"" in figs. 7A and 7B between in- or outlets 13, 13', 23, 23',X, X', X", X"' along the width of the distributor 10, 20 is laid out with corresponding or equal orthe same distance or different distances, i.e. distance D"' is either different to distance D"" orcorresponds to or is equal/same distance. The length LD of the distributor 10, 20 is expressedin the following equation LD = 2 - D" + Z x - (D or D')/2 where x is the number of in- or outlets13, 13', 23, 23', X, X', X", X"'. Some aspects of the invention gives distance D" = 30 - 50 mmand D and/or D' = 10 - 30 mm or preferably 12 - 25 mm and distance D"' and/or D"" to bebetween 10 - 25 mm or preferably 12 - 20 mm. Above distances depend on available space and correct pressure distribution, e.g. the distributor/-s 10, 20 must fit into a standard cabinet.

One or more or each distributor 10, 20 comprises at its/their inside the rail11, 21 fixedlyarranged and/or comprises at its/their inside the rail as at least partly movable by means ofthe mechanism 60 (see fig 4A) in relation to the in- and/or outlets 13, 13', 23, 23', X, X', X",X"'. The inner rail11, 21 of any distributor 10, 20 is an internal split that adjusts the liquidpressure for optimal pressure distribution through the distributor and to the pipe/tubeconnectors. This rail in combination with the arrangement of distances D, D', D" and/or D"'and/or D"" along the length and/or width of the distributor 10, 20 further improves the optimal pressure distribution.

Examples of patterns of the laid out tubing 30 according to the invention are shown in figures1 and 2. Any of these patterns of laid out tubing 30 is combinable with any other pattern oflaid out tubing according to the invention if, e.g. two spaces 6 are present and are to be heated and/or cooled, such as two rooms side-by-side. More than two first and second 21distributors 10, 20 would then be used and additional equipment added in proportion to thismaking the energy distribution system 1 in principle, or at least functionally, and in number ofassociated components almost or twice as big. lf more than two rooms 6 are to be heatedand/or cooled, the number of distributors and associated equipment are multiplied proportionally to the number of spaces/rooms 6.

The present invention concerns a method of laying out tubing 30 ofthe energy distributionsystem 1 for heating and/or cooling at least a part 7 ofthe space 6 or the whole space ifapplicable. The inventive method is adapted to be utilized in e.g. a residential building, ship orswimming pool according to any ofthe above aspects. The inventive method comprises layingout the tubing 30 with varying distance, such as a distance between centers C/C of the tubes(see Figs. 1 and 2). The inventive method comprises laying out the tubing 30 in differingpatterns as required to differing energy demands of the space 6, optionally in combinationwith varying distance C/C between each tube ofthe tubing (see Figs. 1 and 2). The inventivemethod comprises laying out the tubing 30 in differing patterns as required to differing energydemands of the space 6, optionally, i.e. if required, in combination with varying distance C/Cbetween each tube of the tubing and/or along each individual or separate path or winding ofeach individual tube ofthe tubing 30 (see Figs. 1 and 2).This distance C/C is smaller in areas ofthe space having a higher energy demand, such as at a window W or door with or without awindow W, creating a more dense pattern oftubing in that/those area/areas. This distanceC/C is larger in areas of the space 6 having a lower energy demand creating a less densepattern oftubing 30 in that/those area/areas, such as at an inner wall not directly connectedto the outdoor or a colder part of a building. The energy or power demand of each m2depends on or is due to the distance center to center (C/C) between tubes and between thewinding/-s of one and the same tube ofthe tubing 30. Referring to figs. 1 and 2, the tubingcloser to the window W has a C/C of 50 - 100 mm, while the tubing on the remains of thefloor/part 7 of the space has a C/C of 100 - 300 mm. This gives a mixed piping or tubing 30exposition/layout compared to prior art where tubing is laid out with the same distance centerto center (C/C) between tubes. The inventive lay-out patterns ofthe invention create a pressure balance in the energy distribution system 1 and enable the system to self-regulate.

The method according to the above comprises connecting a first end 31 of each tube of the tubing 30 to an associated outlet 13, 13', X, X" of a first distributor 10. The method comprises 22 adapting (e.g. by cutting) the length of each individual tube oftubing 30 into corresponding orsubstantially same or equal or same length as the other tubes. This adaption of tube length isdone either before connecting the first end 31 of each tube ofthe tubing 30 to the associatedoutlet 13, 13', X, X" of the first distributor 10 or after. This tube length is fitted so that thetubing 30 is enabled to be laid out at/over/on a floor, wall or a roof in a pattern with differentlayout for each ofthe tubes in at least a part 7 of the space 6 to be heated and/or cooled. Themethod comprises laying out each tube ofthe tubing 30 in the pattern adapted to therequired demand on heating/cooling of the space. The method comprises connecting thesecond end 32 of each tube of the tubing 30, Y to an associated inlet 23, 23', X', X"' of a second distributor 20 before or after the layout thereof.

The method of laying out tubing 30, Y of the system 1 according to above aspects comprisesconnecting the first end 31 of a first tube of the tubing 30 detachabaly to the first outlet 13,13' ofthe first distributor 10. The method comprises adapting (e.g. by cutting) the length ofthe first tube of the tubing into a length corresponding to or being substantially the same orbeing equal or same length as the other tubes before or after connecting the first end 31 ofthe first tube of the tubing 30 detachably to the first outlet 13, 13' of the first distributor. Thetube length is fitted to be laid out at/over/on a floor, wall or a roof in a first pattern in thespace 6. The method comprises laying out the first tube oftubing 30 in the first patternadapted to the required energy demand of the space. The method comprises detachablyconnecting the second end 32 of the first tube ofthe tubing 30 to the first inlet 23, 23' ofthesecond distributor 20 before or after the layout thereof. The method comprises detachablyconnecting a first end 31 of a next tube Y of the tubing 30 to a next outlet X, X" of the firstdistributor 10. The method comprises adapting (e.g. by cutting) the next tube Y oftubing intoa length that corresponds to or is substantially the same or is equal to the length of the firstlaid-out tube of the tubing before or after connecting the first end 31 of the next tube Y oftubing detachably to the next outlet X, X" of the first distributor. The tube length is fitted to belaid out at/over/on a floor, wall or a roof in a next pattern in the space. The method compriseslaying out the next tube Y ofthe tubing 30 in the next pattern adapted to the required energydemand ofthe space. The method comprises connecting the second end 32 of the next tube Y of tubing 30 detachably to another inlet X', X"' ofthe second distributor 20 before or after the 23layout of one or more tubes or the whole tubing. The method comprises repeating the above steps until all tubes Y ofthe tubing 30 are laid out and connected to the distributors 10, 20. ln accordance with the inventive system 1 and its layout method and inherent advantages,such as tubing 30 that do not have tubes of different lengths, any valves in at least one/eachdistributor 10, 20 are eliminated meaning that the distributor is valveless. One effect oftheinventive system 1 and its method is that each ofthe distributors 10, 20 is made valveless.Figs. 5 and 6 show the inventive principle where two distributors 10, 20 are arranged so thatthe tubes of the tubing 30 is visualized more clearly with their lengths that correspond or aresubstantially the same or equal or the same ifthe tubes were connected to the distributors before being laid/spread out at least partly in the space 6 shown in Figs. 1 and 2.

One and the same distributor 10, 20 in the inventive system 1 comprises at least two rows ofin- and/or outlets 13, 23, X, X' being aligned substantially in parallel along the length of thedistributor. The rail/internal split/pressure rail11, 21 of the distributor 10, 20 is movable to be able to adjust the inner volume of its associated distributor.

The rail 11, 21 may be movably attached inside the distributor 10, 20 by means of a hinge, orpivot at one end so that its adjustability/movability is performed by changing its angle oL byrotating the rail around a rotational axis, whereby its angle oL in relation to the longitudinaldirection of the distributor is variable. The right end ofthe rail closest to main inlet 12 of thedistributor in fig 4A is the fixed point around which the rail is adapted to move/swirl. Thisangle oL is between 5° to 40° or is variable between 5° to 40° in relation to the longitudinaldirection of the distributor 10, 20 or the horizontal (see Figs. 4A and 6). The angle of the railenables it to function as a wall similar to an anvil that the oncoming fluid moves along, so thatpressure variation along the length ofthe distributor is compensated, i.e. balanced. The rail11, 21 is arranged so that the inner volume ofthe first distributor 10 decreases from its inlet12 or first outlet 13, 13' to its last outlet X, X' for the first distributor 10. Optionally, a rail11,21 is arranged so that the inner volume of the second distributor 20 decreases from its firstinlet 23, 23' to the outlet 22 and its last inlet X", X"'. Each distributor optionally comprises oneor more rails 11, 21 or only one distributor comprises one or more rails. lf more than twodistributors 10, 20 are utilised in the system 1, as an option, only one, only two or more distributors may be equipped with one or more pressure compensating rails 11, 21. The angle 24 oL for the rail11, 21 is measured in relation to or from the upper part of the distributoropposite its in- and/or outlets 13, 13', 23, 23', X, X', X", X"' (see Figs. 3B, 4A, 4B, and 6). Rail11, 21 is either a linear or linearly straight element (see Figs. 4A and 6) or a bent or curvedwith a certain constant radius R or bent/curved with a varying radius R from a larger radius atthe in|et 12, 22 ofthe first or second distributor to a smaller radius at the last outlet X, X' of the first distributor/last in|et X", X"' of the second distributor (see Figs. 3B and 4A).

The rail11, 21 may be attached by means of linear guides at each end, which guides areconnected to or a part of the inside of the distributor 10, 20, so that rail adjustability, i.e. railmovability is performed by moving the rail linearly along the guides in a direction inside the distributor being substantially perpendicular to or substantially in parallel with the length, i.e. the longitudinal extension of the distributor towards or from the in-/outlets of the distributor.

The rail 11, 21 may be fixedly integrated inside at least one, two or more distributors 10, 20.The rail 11, 21 is in some aspects linearly movable inside the distributor 10, 20, whereby theinner distributor volume is decreased when the rail is moved towards the in-/outlets 13, 13',23, 23', X, X', X", X"' along and/or perpendicularly to the length ofthe distributor, i.e. itslongitudinal axis. Hence, the rail11, 21 is configured to be move axially and/or radially inrelation to the longitudinal extension of any distributor 10, 20. lndependently if a fixed oradjustable/movable rail11, 21 is used, such a rail may be arranged/integrated inside at leastone, two or more distributors 10, 20, e.g. only in the first distributor 10 or only in the second distributor 20 or in both.

NOl\/IENCLATURE 1 Energy system 2 Fluid inflow 3 Fluid outflow 4 Fluid inlet Fluid return outlet 6 Space to be heated/cooled, e.g. residential/industrial building, ship, swimming pool 7 Area/Part of the space to be heated and/or cooled 8 Heating and/or cooling system/unit 9 Pump for fluid First distributor/distributing pipe/manifold 11|nner volume reducing/increasing/pressure compensating member/rail of first manifold12 Fluid main inlet ofthe first distributor 13, 13' First fluid outlet of first and second row of outlets of the first distributor X, X' Arbitrary/Last fluid outlet of first/second row of outlets of first distributor 14 First row of outlets 13, X of the first distributor Second row of outlets 13', X' of the first distributor Second distributor/distributing pipe/manifold 21|nner volume reducing/increasing/pressure compensating member/rail of second manifold22 Fluid main outlet ofthe second distributor 23, 23' First fluid inlet of first and second row of inlets ofthe second distributor X", X"' Arbitrary/Last fluid inlet of first/second row of inlets of second distributor 24 First row of inlets 23, X" of the second distributor Second row of inlets 23', X"' of the second distributor Tubes/Tubing/Hoses of EPDM ethylene-propylene rubber/Cross-linked Polyethylene (PEX)31 First end of a tube 32 Second end of a tube 33 Female member at end ofa tube, e.g. a groove.

Y Arbitrary/Last tube of the tubing 40 Female section, e.g. in the form of a groove, at connecting part of a distributor 50 Sealing, e.g. an o-ring, packing, packing ring, performed packing 60 Device/Mechanism for adjusting/moving the pressure compensating rail 70 Device for control ofthe heating/cooling, such as a thermostat 100 Tube/Hose connecting/coupling part of the first distributor 200 Tube/Hose connecting/coupling part of the second distributor D, D', D", D"', D"" Distance between distributor ends and in-/outlets and between in-/outletsR radius of rail if bent/curved oL angle between upper inner part of distributor and rail W Window or door (with or without window) facing/leading to a roof/balcony/terraceX Number of in- or outlets of the distributor L Length of tubes of tubing LD Length of the distributor

Claims (9)

1. CLAIMS Energy distribution system (1) for heating/cooling a space (6), at least partly, such as aresidential building, a ship or a swimming pool, by means of fluid distribution for energyexchange between distributed fluid and at least a part (7) of the space, comprising - at least one first distributor (10) comprising a main inlet (12) adapted for receivingheating or cooling fluid by means of a fluid inlet (4) for fluid inflow (2), - at least one second distributor (20) comprising a main outlet (22) adapted for dis-charging heating or cooling fluid by means of a fluid return outlet (5) for fluid outflow(3), and - tubing (30) connected between outlets (13, 13', X, X') of the first distributor (10) andinlets (23, 23', X", X"') ofthe second distributor (20) to create a fluid flow path betweenthe distributors to enable exchange of energy between the heating/cooling fluid flowingthrough the tubing laid out in the space (6) and the space, c h a r a c t e ri s e d in that the tubing (30) comprises tubes of corresponding length or substantially same length or equal length or same length. Energy distribution system (1) according to claim 1, wherein the tubing (30) comprises atleast 5 to 12 m oftubing (30), preferably at least 6 to 9 m of tubing, more preferably 6 to8 m of tubing, or most preferred 6.5 to 7.5 m oftubing per m2 of at least the part (7) of the space (6) to be heated or cooled. Energy distribution system (1) according to claim 1 or 2, wherein the tubing (30)comprises at least one or more tubes having an inner diameter smaller than 10 mm;preferably smaller than 7 to 9 mm; more preferably smaller than 6 to 7 mm; or most preferably smaller than or about or equal to 5 to 6 mm, 4 to 5 mm, 3 to 4 mm or 4 mm. Energy distribution system (1) according to any preceding claim, wherein the tubing (30)comprises at least one or more tubes having an inner diameter larger than 2 or 3 mm; preferably larger than 4 mm; or more preferably larger than 5 mm. Energy distribution system (1) according to any preceding claim, wherein at least onedistributor (10, 20) comprises at least one rail (11, 21) arranged inside the distributor, the rail being configured to compensate varying pressure in the fluid flow through the 10. 11. 12. 27distributor by decreasing its inner volume in the fluid flow direction from its first in-/out- let (12, 13, 23) to its last in-/outlet (22, X, X') in relation to the size of each in-/outlet. Energy distribution system (1) according to claim 5, wherein the rai| (11, 21) is fixedly arranged inside the at least one distributor (10, 20). Energy distribution system (1) according to claim 5, wherein the rai| (11, 21) is at leastpartly movable inside the distributor (10, 20) by means of a mechanism (60) in adirection towards or from the in- or outlets (13, 13', 23, 23', X, X', X", X"') ofthedistributor to decrease the inner distributor volume in response to pressure varying from the first in-/outlet (12, 13, 23) to the last in-/outlet (22, X, X') of the distributor. Energy distribution system (1) according to claims 5 or 7, wherein the rai| (11, 21) islinearly movable inside the distributor (10, 20), whereby the inner distributor volume is decreased when the rai| is moved towards the in-/outlets (13, 13', 23, 23', X, X', X", X"'). Energy distribution system (1) according to claim 5, 6, 7 or 8, wherein each distributor (10, 20) of the system (1) comprises at least one pressure compensating rai| (11, 21). Energy distribution system (1) according to any preceding claim, wherein eachdistributor (10, 20) comprises at least one connecting part (100, 200) with outlets (13,13', X, X') or inlets (23, 23', X", X"') configured to connect to the tubing (30), which connecting part comprises at least one female section (40) at each individual in-/outlet. Energy distribution system (1) according to claim 10, wherein each tube of the tubing(30) comprises at least one female member (33) at each of its ends (31, 32), each femalemember being configured for sealed mating with at least one corresponding female section (40) of the connecting part (100, 200) of any distributor (10, 20). Energy distribution system (1) according to claim 10 or 11, comprising at least oneseparate detachable sealing (50) configured to sealingly fit between a female member(33) of one tube end (31, 32) and a corresponding female section (40) of at least one distributor (10, 20) when the tube end is connected to the female section. 13. 14. 15. 16. 17. 18. 19. 20. 21. 28Energy distribution system (1) according to anyone of claims 10 to 12, wherein eachfemale section (40) is configured as a groove at and around each individual in- or out|et (13, 13', 23, 23', x, x', x", x"') ofthe distributor (10, 20). Energy distribution system (1) according to anyone of claims 11 to 13, wherein eachfemale member (33) is configured as a groove at and around each individual end (31, 32) of each tube of the tubing (30). Energy distribution system (1) according to any preceding claim, wherein one or more orall tubes ofthe tubing (30) is made of Ethylene Propylene Diene I\/|onomer rubber (EPDl\/l). Energy distribution system (1) according to anyone of claims 1 to 15, wherein one or more or all tubes ofthe tubing (30) is made of Cross-linked Polyethylene (PEX). Energy distribution system (1) according to any of claims 1 to 16, wherein one or morebut one and the same distributor (10, 20) comprises at least two rows (14, 15, 24, 25) of in- or outlets (13, 13', 23, 23', X, X', X", X"'). Distributor (10, 20) in a system (1) for heating/cooling, at least partly, a residentialbuilding, a ship or a swimming pool, according to any of claims 1 to 17, wherein one andthe same distributor (10, 20) comprises at least two rows (14, 15, 24, 25) of in- or outlets (13, 13', 23, 23', x, x', x", x"'). Distributor (10, 20) according to claim 18, in which in-/outlets (13, 13', 23, 23', X, X', X",X"') of one in-/out|et row (14, 24, 15, 25) are displaced at a distance from the in-/outletsof another row of in-/outlets in a direction substantially perpendicular to and/or in parallel with the longitudinal direction ofthe distributor. Distributor (10, 20) according to claim 18 or 19, in which each in- or out|et (13, 13', 23,23', X, X', X", X"') of each in-/out|et row (14, 24, 15, 25) is displaced at corresponding or substantially same or equal or same distance from each other along each row. Distributor (10, 20) according to any of claims 18 to 20, in which the in- or outlets (13,13', 23, 23', X, X', X", X"') of the at least two in-/out|et rows (14, 24, 15, 25) are arranged so that a zigzag or staggered pattern of the in-/outlets along the distributor is achieved. 22. 23. 24. 25. 26. 27. 28. 29. 29Distributor (10, 20) according to any of claims 18 to 21, in which the at least two in- oroutlet rows (14, 24, 15, 25) are displaced from each other in a direction substantially perpendicular to the longitudinal direction of the distributor. Distributor (10, 20) according to any of claims 18 to 22, wherein its connecting part (100,200) comprises at least 2 to 8 in- or outlets (13, 13', 23, 23', X, X', X", X"') or preferablyat least 3 to 7 in- or outlets or more preferred at least 3 to 6 in- or outlets or most preferred 3 to 5 or 3 to 4 in- or outlets per 50 mm length of the distributor (10, 20). Distributor (10, 20) according to any of claims 18 to 23, comprising at least one inner rail(11, 21) configured to compensate varying pressure in the fluid flow through thedistributor by decreasing its inner volume in the fluid flow direction from its first in-/out-let (12, 13, 13', 23, 23') to its last in-/outlet (22, X, X', X", X"') in relation to the size of each individual in-/outlet. Distributor (10, 20) according to claim 24, inside which the rail (11, 21) is fixedlyarranged to decrease the inner distributor volume in response to fluid pressure varying from the first distributor in-/outlet (12, 13, 23) to the last in-/outlet (22, X, X'). Distributor (10, 20) according to claim 24, inside which the rail (11, 21) is at least partlymovable by means of a mechanism (60) in relation to the in- or outlets (13, 13', 23, 23',X, X', X", X"') to enable decreasing the inner distributor volume in response to varying fluid pressure inside the distributor (10, 20). Distributor (10, 20) according to claim 26, inside which the rail (11, 21) is linearlymovable, at least partly, whereby the inner distributor volume is decreased when the rail is at least partly moved towards its in- or outlets (13, 13', 23, 23', X, X', X", X"'). Distributor (10, 20) according to any of claims 18 to 27, comprising a connecting part(100, 200) with in- or outlets (13, 13', 23, 23', X, X', X", X"'), the outlets (13, 13', X, X')enabling fluid to flow to the space (6) for energy exchange therewith and the inlets (23,23', X", X"') enabling fluid to flow from the space after energy exchange, the connecting part comprising at least one female section (40) at each individual inlet or outlet. Distributor (10, 20) according to claim 28, whose connecting part (100, 200) comprises at least one female section (40) at each individual outlet (13, 13', X, X') or inlet (23, 23', X", 30. 31. 32. 33. X"'), the female section being configured to receive at least one sealing (50) adapted to sealingly fit against the female section. Distributor (10, 20) according to claim 29, in which each female section (40) isconfigured as a groove at and around each individual in-/outlet (13, 13', 23, 23', X, X', X", X"') of the distributor. Method of laying out tubing (30) of an energy distribution_system (1) for heating/coolinga space (6), at least partly, e.g. a residential building, ship or swimming pool, accordingto any of claims 1 - 17, comprising laying out the tubing (30) at/over/on/in a floor, wallor a roof in a pattern with different layout for the tubing in the space with relativedistance (C/C) between the tubing being smaller in an area (W) of a part (7) ofthe space(6) having a higher energy demand and larger in another area of the space having alower energy demand forming a more dense pattern of tubing in the area (W) withhigher energy demand and a less dense pattern oftubing in the area with lower energy demand. Method according to claim 31, comprising connecting the tubing (30) to at least first andsecond distributors (10, 20), adapting the tubing (30, Y) into corresponding orsubstantially same or equal or same lengths fitted to be laid out at/over/on/in the floor,wall or roof in the pattern with different layout for the tubing in the space (6) and layingout the tubing with tubes having corresponding lengths or substantially same length or equal length or the same length. Method according to claim 31 or 32, comprising connecting a first end (31) of each tube ofthe tubing (30, Y) to an associated outlet(13, 13', X, X") of a first distributor (10), adapting each tube of the tubing (30, Y) into corresponding or substantially same orequal or same lengths fitted to be laid out at/over/on/in a floor, wall or a roof in apattern with different layout for each of the tubes in the space (6), laying out each tube ofthe tubing (30, Y) in the pattern adapted to the requireddemand on heating/cooling of the space (6), and connecting the second end (32) of each tube ofthe tubing (30, Y) to an associated inlet (23, 23', X', X"') of a second distributor (20) before or after the layout. 33. 31 Method of laying out tubing (30, Y) of an energy distribution system (1) according toclaim 32, comprising connecting the first end (31) of a first tube ofthe tubing (30, Y) to a first out|et (13,13') of a first distributor (10), adapting the first tube ofthe tubing (30) into the length fitted to be laid outat/over/on/in a floor, wall or a roof in a first pattern in the space (6) before or afterconnecting the first end (31) of the first tube of the tubing (30, Y) to the first out|et (13,13') of the first distributor (10), laying out the first tube ofthe tubing (30) in the first pattern adapted to the requireddemand on heating/cooling ofthe space (6), connecting the second end (32) ofthe first tube of the tubing (30) to a first inlet (23,23') of a second distributor (20) before or after the layout thereof, connecting a first end (31) of a next tube (Y) of the tubing (30) to a next out|et (X, X")of the first distributor (10), adapting the next tube (Y) ofthe tubing (30) into a length corresponding to the lengthof the first laid-out tube of the tubing fitted to be laid out at/over/on/in a floor, wall or aroof in a next pattern in the space (6) before or after connecting the first end (31) of thenext tube (Y) of the tubing (30) to the next out|et (X, X") of the first distributor (10), laying out the next tube (Y) of the tubing (30) in the next pattern adapted to therequired demand on heating/cooling ofthe space (6), connecting the second end (32) ofthe next tube (Y) of the tubing (30) to another inlet(X', X"') ofthe second distributor (20) before or after the layout thereof, and repeating the above steps until all tubes (Y) of the tubing (30) are laid out and connected to the distributors (10, 20).