EP3311077A2

EP3311077A2 - Method and device for air-conditioning a room

Info

Publication number: EP3311077A2
Application number: EP16730411.2A
Authority: EP
Inventors: Alexander Buff; Sophie Lierschof
Original assignee: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Current assignee: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority date: 2015-06-22
Filing date: 2016-06-21
Publication date: 2018-04-25
Anticipated expiration: 2036-06-21
Also published as: US10371398B2; WO2016207141A3; US20180172296A1; WO2016207141A2; CN107995944A; DE102015211473A1; EP3311077B1; SG11201710720SA; CN107995944B

Abstract

The invention relates to a device (1) for air-conditioning a room (2), comprising at least one heat sink (10) having at least one boundary surface (100) facing the room (2), which can be brought to a temperature that is reduced in relation to the heat load, wherein at least one surface element (31, 32) is arranged between the boundary surface (100) and the room (2), said surface element being at least partially permeable to heat radiation. The invention further relates to a method for air-conditioning a room (2), comprising at least one heat sink (10) having at least one boundary surface (100) facing the room, which is brought to a temperature that is reduced in relation to the heat load, wherein at least one surface element (31, 32, 33) is arranged between the boundary surface (100) and the room (2), said surface element being at least partially permeable to heat radiation.

Description

Apparatus and method for air conditioning a room

The invention relates to a device and a method for air-conditioning a room, in which by means of at least one heat sink, which has at least one boundary surface facing the room, heat energy is taken up from the room. For this, the interface is on a

brought to a heat load reduced temperature. Devices and methods of the type mentioned are also known under the terms thermal component activation or cooling ceiling.

From S.C.M. Hui and J.Y.C. Leung: Thermal comfort and energy Performance of Chilled Ceiling Systems, Proceedings of the Fuyian Hong Kong Joint Symposium 2012, Fuzhou, 36 - 48 is a well known device. In this known device, a component of a building is cooled by a pipe register, so that the component can absorb heat from the room air or in-room heat loads and thereby affects the indoor climate.

However, this known device has the disadvantage that the interface, which has direct contact with the room air, can not be cooled below the limit temperature at which condensation begins. This limit temperature is higher, the higher the relative humidity. Thus, especially in humid tropical climates, only a relatively small temperature spread can be achieved without moisture precipitating on the thermally activated component and thus adversely affecting the room climate or causing structural damage. The effect of the known Device is therefore inadequate under hot and humid climatic conditions.

Based on the prior art, the invention is therefore based on the object of specifying a method and a device for room air conditioning, which on the one hand is energy efficient and on the other hand has a good cooling effect even in humid climatic conditions.

The object is achieved by a device according to claim 1 and a method according to claim 32. Advantageous developments of the invention can be found in the subclaims.

According to the invention, a device for air conditioning a room is proposed, which has at least one heat sink. The heat sink has at least one, the space facing interface. For the purposes of the present description, the interface faces the room when heat radiation from at least one heat load in the room directly or via at least one interface

Can reach reflection surface.

In some embodiments of the invention, the heat sink may be part of a building, in particular a solid construction ceiling or wall. In other embodiments of the invention, the heat sink can be designed as a plate heat exchanger, capillary tube mat, cooling plate or radiator and be introduced as a separate component in the room. For example, the heat sink can be designed as a ceiling panel or as a wall panel. In other embodiments of the invention, the heat sink may be formed as a formative spatial element or part of the furniture and integrated, for example, in a lighting device or a piece of furniture. In other embodiments of the invention, the heat sink may be part of a vehicle, an aircraft or a ship, or as a separate one Component be mounted in the passenger compartment to improve the thermal comfort of the passengers.

The heat sink has at least one interface facing the room. The interface may have a smooth or a rough surface to the absorption or

To influence reflection behavior. The interface may have a mineral surface, such as an interior plaster or a disperse paint coat. In other embodiments of the invention, the interface may include or consist of a metal or alloy. Due to the comparatively high thermal conductivity and / or high heat capacity, the performance of the device according to the invention can be increased. By a low heat capacity of the heat sink, the response of the device can be improved. In some embodiments of the invention, the interface may have an absorbing coating which is more than 90% or more than 95% at least in a partial region of the infrared spectral range.

Absorption shows. In some embodiments of the invention, an electroplated layer of black chrome or black nickel may be used. In other embodiments of the invention, a layer or a multi-layer layer system can be applied in a sputtering process, for example a titanium oxynitride coating or other ceramic

Coatings.

During operation of the device, the boundary surface facing the room is brought to a temperature which is lower than the heat load. This can be done for example by a refrigerant. The refrigerant may, for example, by means of a compression refrigeration machine or a

Heat pump are cooled, so that the heat sink heat is removed. In other embodiments of the invention, groundwater or surface water may be used to extract heat from the heat sink and reduce the temperature of the boundary water. to lower the area. In yet another embodiment of the invention, thermoelectric coolers can be used, for example Peltier elements.

The heat load can be selected from solar radiation, electrical or electronic devices or people in the room. The infrared heat radiation emanating from the heat load is absorbed by the interface of the heat sink and removed from the space by the refrigerant or the heat carrier fluid.

According to the invention it is now proposed to arrange at least one surface element between the interface and the space, which is at least partially permeable to heat radiation. The surface element causes the ambient air of the room can no longer act directly on the interface. Therefore, the moisture present in the room is kept away from the interface so that it does not condense on the interface. The interface can therefore be in

Operation of the device can be brought to a temperature below the dew point. As a result, the efficiency of the device is increased and yet avoided that

Moisture at the interface precipitates and contaminates the space, equipment or furnishings

damaged, persons harassed, structural damage caused and / or the room climate is negatively affected.

However, since the surface element for thermal radiation is at least partially permeable, all in space

located heat loads, which are at a temperature increased from the interface, emit infrared heat radiation, which is subsequently transmitted through the surface element and absorbed in the interface. Thermal radiation is electromagnetic radiation of the

infrared wavelength range, so that this

spread straight and penetrates the surface element. For the spectral range considered here also the Term room temperature radiation can be used. Thus, the heat radiation is efficiently absorbed by the heat sink, although the immediate action of the warm room air on the interface by the surface element is prevented or reduced.

In some embodiments of the invention, the surface element at a wavelength between about 3 μπι and about 30 μπι or between about 6 μπι and about 20 μπι at least in a subregion transmission from about 50% to about 90% or from about 70% to about 80th % exhibit. In some

Embodiments of the invention, the surface element at a wavelength between about 6 μπι and about 20 μπι

show, at least in one sub-range, a transmission of greater than about 50% or greater than about 70% or greater than about 80%. Said wavelength range contains a large part of the energy of the thermal radiation of a black body at about 300 K. If the cooling device according to the invention is to be used in a warmer climate, this wavelength range can be shifted. Similarly, shorter wavelengths can occur when the room

has special heat sources, such as electrical or electronic devices. A transmission of about 50% to about 90% in at least a portion of said wavelength range ensures that a sufficient portion of the heat radiation reaches the interface of the heat sink and can be transported away from the room in this way. At the same time, the transparency and the associated low degree of absorption and emissivity of the fabric in the stated wavelength range of the material ensures that the fabric gives off little heat energy to the heat sink and thus does not cool down and thus does not fall below the dew point of the room air.

At the same time, the fabric can be at least partially reflective in the visible spectral range and / or

be formed absorbent, so that an optical

appealing design is possible. For example, can the usual white ceiling color in buildings continues

to be kept.

In some embodiments of the invention, the heat sink may include a tube register and / or a plate heat exchanger and / or a capillary tube mat. These can be flowed through by a refrigerant. The refrigerant can be cooled by means of a compression refrigeration machine. In some embodiments of the invention, the refrigerant may undergo a phase transition. Alternatively, the

Refrigerant groundwater and / or surface water to be promoted by means of pumps through the pipe register or the plate heat exchanger. In this way, the

Heat sink so that the interface facing the room cools to a lower temperature than the room.

In some embodiments of the invention, the surface element may be spaced from the interface such that a gap is formed between the surface element and the interface which is filled with air or optionally with an inert gas. The protective gas can

be selected from argon, nitrogen, synthetic air or dehumidified ambient air. In other

Embodiments of the invention, the gap between the surface element and the interface may be evacuated. It is essential in some embodiments that the gap has only a low water vapor partial pressure, so that the condensation of moisture at the interface is avoided. As a result, the interface remains dry, so that the efficiency of the device does not decrease. Furthermore, the space-facing surface element is warmer than the boundary surface during operation of the device, since the gap of the insulation can serve, so that the space facing side of the surface element is not among the

Dew point of the room air cools down. Thus, the occurrence of structural damage, such as mold, can be avoided. In some embodiments of the invention, the device may further comprise a dehumidifier, with which water is removable from the space between the surface element and the interface. In this way, water, which during operation of the device by the at least one surface element or the edge bond

penetrates, be removed from the gap. Thus, the gap can be reliably kept free of water, so that the interface is free of condensate or condensate at least reduced and can be transported away from the interface. This allows trouble-free operation over a longer period of time.

In some embodiments of the invention, the

Dehumidifying at least one sorbent and / or at least one micropump and / or at least one heater and / or at least one valve and / or at least one fan and / or a nonwoven contain or consist of. Thus, moisture occurring in the space can be either chemically sorbed, for example by silica gel, zeolites or similar desiccants. In other embodiments of the invention, cumulatively or alternatively, a micropump may be present

Any occurring moisture and condensate is pumped out of the intermediate space. In yet another embodiment, the moisture can be expelled from a sorbent and / or the space can be heated dry by means of at least one heating device. Finally, in some

Embodiments of the Invention Valves may be present, either as spring-loaded check valves

working and / or can be controlled by means of mechanical drive means, for example by

electromagnetic coils or piezoactuators. in the

Cooperation with at least one fan, the

Interspace be flushed by dry inert gas, which by the fan or other conveyor the gap is supplied and leaves through at least one valve.

In some embodiments of the invention, the at least one surface element may include a polymer. In some embodiments of the invention, the polymer may be selected from polyethylene and / or polymethyl methacrylate and / or polyvinyl chloride and / or polypropylene and / or

Polyethylene terephthalate and / or polyester and / or biaxially oriented polyester film and / or cellulose acetate butyrate and / or cellulose acetate polymer. These materials have a high diffusion resistance to water vapor, so that only a small amount of moisture can penetrate into the gap. In addition, these surface elements due to their breakage and safe as

Overhead glazing can be used when the heat sink is placed with the interface in the ceiling area.

In some embodiments of the invention, the device may include one, two or three surface elements spaced from each other and to the interface

are arranged. As a result, several interstices form, so that the humidity is kept with greater reliability from the interface and / or due to the improved thermal insulation, a greater temperature difference between heat load and interface may exist.

In some embodiments of the invention, the at least one surface element and the heat sink may be bordered by an edge seal which contains at least one sealing element. In some embodiments of the invention, the sealing element may include or consist of polyisobutylene and / or silicone and / or butyl rubber. Such edge bond can be made similar, as in known Isolierglasscheibenrandfugen. Thus, the penetration of moisture into the intermediate space by the sealing elements of the edge seal is reliably and durably prevents adhesion, so that a long life of the device also results in daily use.

In some embodiments of the invention, the at least one surface element and the heat sink may be bordered by an edge bond, which is carried out by thermal joining. This allows a rapid and cost-effective production and / or the edge bond can be made very dense.

In some embodiments of the invention, the at least one surface element may be connected to a frame which is secured by mechanical or magnetic closure means on the heat sink and the other components of the

Device is attached. This allows easy replacement of the surface element in case of damage or for revision.

In some embodiments of the invention, at least one sound absorber may be integrated in the device according to the invention, so that the device has both a

can cause thermal as well as acoustic optimization of a room.

In some embodiments of the invention, the

Have a cooling capacity of more than about 70 Wm ^{~ 2} or more than about 90 Wm ^{~ 2} or more than about 100 Wm ^{~ 2} have.

In some embodiments of the invention, it relates to a method for heating a room, comprising at least one heat sink having at least one space facing interface, which is elevated to an elevated temperature in relation to an in-room heat sink, wherein at least between the interface and the space a surface element is arranged, which is at least partially permeable to heat radiation. In these embodiments of the invention, the heat sink can be operated in cooler weather with a warmer compared to the room temperature heat transfer fluid and thus provide a heater.

As a result, for example, people in the room can be offered a comfortable indoor climate. Due to the fabric between the then heated interface and the space, the convection is reduced, so that there is predominantly a radiant heater. This may be by some

Persons are perceived as more pleasant than the heating with conventional surface heating or radiators, which cause a higher convection of the air in the room.

The invention will be explained in more detail with reference to figures without limiting the general inventive concept. It shows

1 shows a cross section through a first embodiment of the device according to the invention for air conditioning.

FIG. 2 shows a cross section through a second one

Embodiment of the device according to the invention for

Air conditioning.

FIG. 3 shows a cross section through a third one

Embodiment of the device according to the invention for

Air conditioning.

FIG. 4 shows a cross section through a fourth

Embodiment of the device according to the invention for

Air conditioning.

Figure 5 shows a cross section through a fifth

Embodiment of the device according to the invention.

FIG. 6 shows a longitudinal section through the fifth

Embodiment. Figure 7 shows the operation of the fifth embodiment of the invention.

FIG. 8 shows the principal mode of action of the invention

Device according to the invention.

Figure 9 shows a sixth embodiment of

inventive device for air conditioning.

FIG. 10 shows a seventh embodiment of the invention

inventive device for air conditioning.

Figure 11 shows an eighth embodiment of

inventive device for air conditioning.

FIG. 12 shows a ninth embodiment of the invention

Device according to the invention for air conditioning in axonometric representation.

FIG. 13 shows the ninth embodiment of FIG

Device according to the invention for air conditioning in

Cross-section .

FIG. 14 shows a tenth embodiment of FIG

Device according to the invention for air conditioning in

Cross-section .

FIG. 15 shows an eleventh embodiment of the invention

Device according to the invention for air conditioning in

Cross-section .

FIG. 16 shows a twelfth embodiment of the invention

Device according to the invention for air conditioning in

Cross-section .

FIG. 17 shows an embodiment of a dehumidifying device in detail. Figure 18 shows the application of the first embodiment of the invention.

Figure 19 shows the application of the second embodiment of the invention.

Figure 20 shows the application of the ninth embodiment of the invention.

Figure 21 shows the alternative application of the first or second embodiment of the invention.

Figure 22 shows a tenth embodiment of the invention in cross section.

Figure 1 shows a first embodiment of the device 1 for air conditioning a room 2. Shown is a

Cross section through a device according to the invention.

The device 1 includes a heat sink 10 having at least one interface 100. The heat sink 10 may include a high thermal conductivity material, such as a metal or alloy, particularly an aluminum or copper alloy. The interface 100 may be provided with an infrared absorbing coating,

for example, a paint, a sputtering layer or a galvanic layer. In particular, the absorption of the room temperature radiation can be increased thereby.

The surface 100 of the heat sink 10 opposite the interface 100 is provided with a thermal insulation 120. The thermal insulation 120 may include or consist of a rigid foam or a vacuum insulation or a mineral wool. The thermal insulation 120 may have a multilayer construction. The heat sink 10 facing away from the thermal insulation 120 is covered with a stiffening element 12, which on the one hand a mechanical Stabilization of the device can cause and with free installation in the room also a decorative appearance

can allow. The stiffening element 12 can

For example, a plastic plate, a sheet, a

Hardboard be a medium density fiberboard or other wood material.

For integration into a building or a vehicle or aircraft, the device with the back of the stiffening element 12 can be attached to a ceiling, for example by gluing or screwing, as will be explained with reference to Figure 18.

In order to extract heat from the heat sink 10, a pipe register 11 is present in the illustrated embodiment, which can be flowed through, for example, by water or another known refrigerant. The heat sink is removed from the heat sink during operation by the pipe register, as will be explained in more detail with reference to FIG. 8. The refrigerant is supplied to the pipe register 11 via a line 110.

The boundary surface 100 faces the space 2, so that heat radiation from the space 2 can reach the boundary surface 100 and be absorbed there. In order to avoid the direct impact of the room air on the interface 100 and subsequently the failure of moisture, are shown in the

Embodiment two surface elements 31 and 32nd

available. These each include a gap 310 and 320, which is either evacuated or contains a protective gas atmosphere.

The protective gas atmosphere is characterized by a small proportion of gaseous water or moisture, so that the moisture does not precipitate at the interface 100.

Nevertheless, the surface elements 31 and 32 are at least partially in the infrared spectral range of Room temperature radiation transparent or translucent, so that the heat radiation from the space 2 penetrates through the surface elements 31 and 32 and can be absorbed by the interface 100. This allows the operation of the device, which, for example, as a cooling ceiling or

Wall element can be executed, even at high

Humidity and high temperature spread, without causing moisture loss and subsequent structural damage.

The surface elements 31 and 32 may be made of glass or

sintered, IR-transparent materials or plastic. In particular, in overhead use of ceiling elements, a plastic element can be advantageously used due to the low weight and breaking strength. Such a plastic element may consist of a

Film web or contain such.

FIG. 1 further shows an edge bond 13, which receives the ends of the surface elements 31 and 32 and closes them in an approximately gas-tight manner, so that no moisture can penetrate from the surroundings at the edge into the first gap 310 and the second gap 320.

FIG. 1 also shows an optional dehumidifying device 4, which is integrated into the edge seal 13 and with which penetrating water can be removed from the gap 310 and 320. In the illustrated embodiment, a first valve 41 is assigned in the first space 310. The second gap 320 is associated with a second valve 42. The valves can as

Check valves are designed so that this one

Air flow 39 discharged to the outside, when the spaces 310 and 320 by means of a fan or another

Conveyor a dry gas stream is supplied, which expels the moisture from the interstices. In addition, the valves 41 and 42 for pressure equalization be used when the pressure of the gas atmosphere in the first space 310 and the second space 320 decreases due to the cooling, so that the surface elements 31 and 32 always remain flat during operation. In some embodiments of the invention, the surface elements 31 and 32 may be stabilized in the operation of the device by an overpressure in the gaps 310 and 320.

A second embodiment of the invention will be explained with reference to FIG. Like reference numerals designate like elements of the invention, so the following description is limited to the essential differences. Also, Figure 2 shows a heat sink 10, which may for example consist of a capillary tube made of a metal or an alloy. Also in this case, a tube register 11 is introduced in the heat sink 10, which can be flowed through by a heat transfer medium to dissipate heat from the heat sink 10.

The heat sink 10 has two interfaces 100 a and 100 b, which are arranged on opposite surfaces of the heat sink 10. Thus, the existing for cooling

Area can be doubled to increase the performance of the device.

On each side of the heat sink 10 each three surface elements 31, 32 and 33 or 34, 35 and 36 are arranged.

Between the surface elements 31 and 32 is a first

Interspace 310 is arranged. Between the second surface element and the third surface element 33, a second intermediate space 320 is arranged. Finally, a third gap 330 is formed between the third surface element 33 and the first boundary surface 100a. On the opposite side of the heat sink 10 is a fourth surface element 34, so that between the second

Boundary surface 100b and the fourth surface element 34, a fourth gap 340 is formed. Adjacent to that fourth surface element 34 is a fifth surface element 35, so that both enclose a fifth intermediate space 350. Finally, a sixth surface element 36 is provided as the termination, which defines a sixth intermediate space 360 together with the fifth surface element 35. By three surface elements and three spaces, the insulation can be further improved, so on the one hand, an undesirable cooling of the outermost, the room

facing surface element is avoided and on the other hand, the penetration of moisture is further reduced, since each space to its adjacent gap has only a small moisture gradient.

For integration into a building or a vehicle or aircraft, the second embodiment can be attached suspended from a ceiling, so that heat radiation from both sides hits the heat sink 10.

Also in this case, there is an edge bond 13 on the device 1, which is the heat sink 10 and the six

Encloses surface elements. The edge seal 13 has in the illustrated embodiment, a cavity 130 which can be provided with an optional sorbent 45 or a seal. The sorbent 45 removes moisture ingress from the gaps 310, 320, 330, 340, 350 and 360.

In order to regenerate the sorbent 45 when loaded with moisture, at least one optional heating element 44 may be provided. The heating element 44 can either as

Be executed pipe register, which can be flowed through by a heat transfer medium. For example, an oil or a heating water can be used for this purpose. Alternatively or additionally, the heating device 44 may include or consist of an electrical heating element to the

Regeneration of the sorbent 45 to be able to make independent of a central heating system. Figure 3 shows a third embodiment of the present invention. Since this third embodiment of the above

similar to the second embodiment described,

restricts the following description to the

significant differences. Also in this case, like reference numerals designate like components.

The essential difference of the third embodiment relates to the edge bond 13. This contains a sealing element 131, which contains, for example, polyisobutylene and / or silicone and / or butyl rubber or consists thereof. The edge bond thus has a similar structure as a known Isolierglasscheibenrandfuge. Of the

Edge composite can therefore be made with known methods from the production of insulating glass windows, so that with little effort a reliable completion of the surface elements and the heat sink 10 results.

A fourth embodiment of the invention will be described with reference to FIG. The fourth embodiment is similar to the first embodiment described above, so that like reference numerals designate like components of the invention and the following description addresses only the essential differences.

In the fourth embodiment, a micropump 46 is located in the edge bond 13. This is provided with connection lines 460, which open into the gaps 310 and 320, respectively. In this way, the micropump 46 can remove moisture from the gaps 310 and 320 and as

Remove moisture flow 465. This allows one

continuous drying of the first gap 310 and the second gap 320, so that the device can be reliably operated over a longer period of operation. A fifth embodiment of the invention will be described below with reference to FIGS. 5, 6 and 7. The fifth

Embodiment, which is shown in section in Figure 7, has a plurality of cylindrical heat sinks, which have approximately a tubular appearance. These are arranged in the focal point of a reflector 6. in the

illustrated embodiment, the reflector 6 is a circular arc in cross section. Of course, other shapes of the reflector 6 may be used, for example, hyperbolic or parabolic

Cross-sections. Preferred, but not mandatory, are

Heat sinks in the focal point or the focal area of

Reflectors 6 arranged. In this way, thermal radiation 20, which impinges on the reflectors 6 from the room, is focused on the heat sink. The reflectors 6 may be made of a metal or an alloy, for example. The reflectors 6 may further comprise an infrared-reflective coating around the

To increase the efficiency of the device. The coating can be applied galvanically and / or from the gas phase, for example by means of conventional CVD or PVD or sputtering methods.

The arranged in the focus heat sinks are shown in Figure 5 in cross section and in Figure 6 in longitudinal section. As can be seen from the figures, the heat sink 10 is approximately circular cylindrical and forms the core of a concentric arrangement of a plurality of surface elements 31 and 32. In this case, the heat sink 10 can be actively cooled, for example by a

Shell and tube heat exchanger, a pipe register or other measures known per se. The cylinder jacket surface of the tubular heat sink 10 serves as an interface 100.

In order to avoid condensing room humidity at the interface 100, it is surrounded concentrically by a first surface element 31 and a second surface element 32. The surface elements thus have the shape of a tube or a hollow cylinder. Between the surface elements and the interface 10 are spaces 310 and 320, respectively

formed, on the one hand isolate the interface 100 against the room and on the other hand prevent the direct access of air. For this purpose, the interstices 310 and 320 can either be evacuated as described above or be provided with a protective gas atmosphere.

As can be seen from FIG. 6, the tubular elements can in turn be provided with an edge compound and / or a sorption agent 45 at their end, so that moisture 39 can be removed from the interstices 310 and 320.

The operation of the invention will be explained again below with reference to FIG 8. FIG. 8 shows a device 1 for room air conditioning. This contains an interface 100 and at least one surface element 31 as above

described. Heat radiation 20 from the space 2 is radiated isotropically and thus partially reaches the interface 100.

The boundary surface 100 also emits a heat radiation 21, which is radiated into the space 2. Since the temperature of the interface 100 is lower than the temperature of the

However, heat loads in the room, the heat flow 21 is less than the heat flow 20, so that a net heat flow is discharged from the room 2. This is deposited in the heat sink 10 of the device 1.

Furthermore, the heat sink 10 becomes a cooling medium,

For example, groundwater supplied. The cooling medium has a finite temperature and thus carries a

Heat flow 23 in the heat sink 10 a. However, because of the incoming from the room net heat flow the

Temperature of the cooling medium increases, leading the cooling medium a heat flow 25 from the heat sink 10 from which is greater than the heat supplied 23. Thus, the heat sink 10 can be reliably cooled and the net heat flow can be permanently removed from the room 2.

Since by the at least one surface element 31 of the

direct access of air from the space 2 to the interface 100 is avoided, a condensation of moisture at the interface 100 is reliably avoided even when cooled below the dew point. Therefore, the cooling capacity may be greater than about 70 Wm ^-2 or greater than about 90 Wm ^-2 or greater than about 100 Wm ^-2 .

A sixth embodiment of the device according to the invention for air conditioning will be explained in more detail with reference to FIG. Also in this case, like components of the invention are given the same reference numerals, so that the following description is limited to the essential differences. The air conditioning device 1 has a similar structure as described above with reference to FIGS. 1 and 4. This embodiment of the

Invention includes a thermal insulation 120, on which the heat sink 10 is applied. Direct access to the

Room air with the moisture contained therein to the heat sink 10 is prevented by the surface element 31, which is arranged at a distance 310 to the interface 100 of the heat sink 10.

Unlike the ones already described above

Embodiments, the device 1 according to the sixth embodiment, no capillary tube mat as a heat sink 10. Rather, the heat sink 10 consists essentially of a flat material layer of a metal or a

Alloy, for example aluminum or copper. This is connected at at least one edge with a tube 11 in which a cooling medium can flow. The cold medium can, as already described above, be liquid or gaseous be or undergo a phase transition in the pipe 11, for example, from gaseous to liquid, so that in this case the heat of condensation from the heat sink 10 is applied and the interface 100 cools accordingly. The

Pipe 11 for the refrigerant can in the edge bond 13th

run.

The stiffening element 12 on the back of the thermal insulation 120 has a projection 241. This

Projection 241 is above the edge seal 13 and forms a mounting flange for the device 1. As further shown in Figure 9, the device 1 by means of

Supernatant 241 and a screw 442 are attached to a component 24 of a building, such as a ceiling.

In addition to the device 1 may run a supply line 110 for the refrigerant. The line 110 may optionally be provided with insulation to prevent heat loss or

To prevent unwanted heat input outside the device 1.

FIG. 10 shows a seventh embodiment of the invention

inventive device for air conditioning. Since the seventh embodiment is similar to the sixth embodiment, the following description is limited to the essential differences. As can be seen from FIG. 10, the structure of the device 1 is similar to that already described above with reference to FIG. However, the seventh embodiment lacks the stiffening element on the heat sink 10 side facing away from the thermal insulation 120. This embodiment has a lower weight and a lower manufacturing cost.

For mounting the device 1 on a ceiling 24, a holding device 245 is used, which has an approximately T-shaped cross-section. It lies the Edge compound 13 on the inside of the T-shaped cross section. To adjust the ceiling distance, 24 is a support member 246 on the ceiling

attached, which has a groove 247 in which the holding device 245 is guided. The holding device 245 is slidably mounted on the holding element 246 and in

specifiable positions. As a result, a gap 248 is established between the rear side of the thermal insulation 120 of the device 1 and the underside of the ceiling 24. This gap 248 serves to ventilate the device 1.

Furthermore, by the variable ceiling distance one

Tolerance be compensated, so that the surface element 31, which the overall visual impression of the

Device 1 and of the space equipped with it, are set so that it runs horizontally.

Figure 11 shows an eighth embodiment of

Device according to the invention in cross section. The eighth embodiment is also similar to the first embodiment explained with reference to FIG. 1, so that the description is limited to the essential differences. The eighth embodiment has a plate-shaped or cuboidal thermal insulation 120. Unlike the first

Embodiment in which the capillary tubes 11 of the

Heat sink 10 are embedded in the thermal insulation 120, protrude the capillary tubes 11 of the heat sink 10 in the eighth embodiment in the gap 310 between the interface 100 and the surface element 31st

Furthermore, the eighth embodiment illustrates

Use of spacers 390, which in

Interspace 310 are arranged and which keep the distance of the surface element 31 and the width of the intermediate space 310 constant or approximately constant. In this way, it can be avoided that the surface element 31 is curved inward or outward when the pressure in the gap 310 changes due to a change in temperature. The spacers 390 may be made of a plastic or a rigid foam or other material with high

Thermal resistance exist, so no thermal bridges on

Surface element 31 arise.

At least some of the spacers 390 may include optional overflow channels 391 which allow gas exchange on either side of the spacer 390 in the space 310. As a result, a gas flow drying out the interspace 310 can also be guided through the spacer 390 or else a gas can be supplied or removed for pressure equalization in the intermediate space 310.

Figures 12 and 13 illustrate a ninth embodiment of the invention. FIG. 12 shows an axonometric view and FIG. 13 shows a cross section.

The ninth embodiment uses a reflector as already explained above with reference to the fifth embodiment. The reflector of the ninth embodiment may, for example, be semicircular or parabolic. The inside of the reflector 6 can with a

Be provided infrared reflective coating. This avoids the absorption of heat radiation and the

Heating the reflector 6. As a result, the efficiency of the device according to the invention can be improved.

The space facing the opening of the reflector 6 can either be open or closed with a surface element 31, as already above with reference to the

Figures 1 to 11 has been explained in detail.

Approximately in the focal area of the reflector 6 is a device 1, which contains a heat sink with an interface. If the surface element 31 is not attached to the reflector 6, the device 1 has at least one

Surface element 31, which the access of moist Room air to the interface 100 prevents, as explained above with reference to Figures 5 and 6. The essential

Difference of the device 1 according to Figure 12 for

Device 1 according to Figures 5 and 6 is that the device 1 of the ninth embodiment of the invention, not a circular, but a polygonal,

preferably has rectangular cross-section. The larger axis of the rectangular cross section corresponds approximately to the height of the profile of the reflector 6. This feature has the effect that heat radiation regardless of

Entry angle falls on the heat sink. Since most heat loads diffuse the heat radiation, the cooling capacity of the ninth embodiment of the device can be greater than the cooling capacity of the fifth embodiment of the invention.

Figure 14 shows a tenth embodiment of the invention. This embodiment is also similar to the fifth embodiment. The tenth embodiment also has a cylindrical heat sink 1 disposed at the focal point of a first reflector 61. The heat radiation 20, which does not fall perpendicular to the first reflector 61, is not focused into the focal point and therefore does not reach the heat sink in the device 1.

However, according to the tenth embodiment of the invention, this heat radiation is incident on a second reflector 62 disposed below the first reflector 61 and having a smaller radius. The radiation is therefore reflected at the second reflector 62 and thus reaches the interface of the heat sink inside the device 1. In this way, the performance of the fifth embodiment can be increased or the effect improved.

Figure 15 shows an eleventh embodiment of the device according to the invention in cross section. The eleventh embodiment has a device 1 with a heat sink and a the space facing interface, as above

described. The interface and the heat sink are integrated in a wall 25, which, for example, as

Drywall or solid construction can be performed.

Adjacent to the upper edge of the device 1 is a reflector 6, which has approximately the shape of a quarter circle or the shape of a parabola half. This means that the vertex of the reflector 6 coincides approximately with the upper edge of the device 1. Heat radiation 20, which falls from the space on the inside of the reflector 6, is reflected to the interface of the heat sink of the device 1 and absorbed there. As a result, a good de-heating of the heat loads in the space 2 can be achieved even with a small active interface.

Optionally, the wall 25 may be provided with an infrared reflective coating 250. As a result, thermal radiation 20, which initially falls from the room onto the wall 25, can be reflected onto the inside of the reflector 6 in order to be removed from the room 2 in this way. The infrared-reflective coating 250 can be applied to the wall 25 as a wall paint, for example, and increases the acceptance range of the optical device formed by the device 1 and the reflector 6

Illustration .

A twelfth embodiment of the device 1 according to the invention will be explained with reference to FIG. The twelfth embodiment has a heat sink 10, which has two opposing interfaces 100a and 100b, as already described with reference to FIGS. 2 and 3. Each interface 100a and 100b is protected from the entry of moist room air by a panel 31 and 32, each panel being spaced from the interface 100a and 100b by a space 310 and 320. The heat sink 10 is in its edge region with a

Coolant line 11 thermally conductively connected, as already using the sixth shown in Figure 9

Embodiment has been explained.

Furthermore, Figure 16 shows the attachment of the surface element 31, which may for example consist of a film web, on a frame 134. Also, the frame 134 may include or consist of a polymer material. In this case, the surface element 31 can be attached to the frame 134 in a simple manner by thermal joining. In some embodiments of the invention, a laser welding process or a contact welding process may be used to heat and thereby weld the material of frame 134 and surface element 31 in specifiable spatial regions above the glass transition temperature.

The frame 134 is attached to the edge seal 13 by a mechanical fixing device 135. The fixing device 135 may, for example, a magnetic

Attachment or include a snap closure. Optionally, sealing elements may be present in some embodiments of the invention to prevent ingress of ambient air into the interstices 310 and 320, respectively.

Furthermore, FIG. 16 shows a dehumidifying device 4 whose mode of operation is explained with reference to FIG. 17.

FIG. 17 shows that the dehumidifier 4 has a first valve 421 and a second valve 422. The first valve 421 opens into a supply line 461, which opens in the space 310.

The second valve 422 is connected to a discharge line 462, which opens into the outer area or the surroundings of the device 1. Between both valves is a sorbent 45

arranged, for example, a zeolite or silica gel, which can bind moisture from the ambient air.

After opening the first valve 421, moisture may flow from the gap 310 through the supply line 461 into the sorbent 45 and be bound there.

After the sorbent 45 is saturated, that can

Valve 421 closed and the valve 422 are opened. By heating the sorbent 45, for example by an electric heater (not shown), the moisture can be expelled from the sorbent 45 and leave the device through the discharge line 462.

After the sorbent 45 has been dried and thereby reactivated, the valve 422 is closed and the valve 421 is opened. This process can be continued cyclically, so that the gap 310 is continuously dried.

Figure 18 shows the application of the first embodiment of the invention. Shown is a space 2 with at least one wall 25 and a ceiling 24. On the ceiling 24, a device 1 is fixed, which has a space 2 facing the interface 100.

Furthermore, can be on the ceiling 24 additional

Installations are located, such as lighting or acoustic panels.

FIG. 18 shows, by way of example, two persons as heat load 29. These radiate heat radiation 20, which is substantially non-directional. The heat radiation 20 can therefore reach the interface of the device 1 directly, where they are absorbed and by the in the Line 110 circulating refrigerant from the room. 2

be removed. Another part of the heat radiation 20 can be reflected on surfaces of the room, for example a table top, and in this way reach the interface of the device 1. Finally, Figure 18 shows the optional use of an infrared reflective

Coating 250 on the walls 25, so reflected from the heat loads 29 radiation 20 at ground and / or

Wall surfaces can be reflected and achieved in this way the interface of the heat sink of the device 1.

In space 2, an optional control device 150 may be present, which prevents excessive cooling of the heat loads 29.

Figure 19 shows the application of the second embodiment of the invention. The same reference numerals designate the same

Components of the invention.

The second embodiment of the invention has two

opposite interfaces 100a and 100b, as for example with reference to Figure 2 has been explained. The

Device 1 is therefore mounted at a distance from the ceiling 24 so that a gap 248 is formed between the ceiling 24 and the uppermost interface.

Heat radiation 20, which emanates from the heat loads 29, thus can either reach the lower boundary surface or by reflection on the walls 25 and the ceiling 24, the upper interface. This can reduce the performance of the

Device 1 in the heat dissipation of the heat load 29 may be increased.

In addition to the ceiling-mounted device la shows

Figure 19 is a device used as a space divider lb, which also has two interfaces, which face the right and the left room side. Warmth- Radiation from a heat load 29 can thus also be absorbed at the interfaces of the second device 1b. The supply of refrigerant can take place via a running in a cavity floor refrigerant pipe 110b.

Figure 20 shows the application of the ninth embodiment of the invention. The device 1 with the associated

Reflector 6 is attached to the ceiling 24. Optionally, a sheet 251 may be present to be decorative

To enable appearance of the ceiling and to hide the reflector 6 from the users.

Thermal radiation passes either from the heat loads 29 directly via the reflector 6 to the interfaces of the device 1 or after reflection through an optional infrared-reflective coating 250 on the walls 25. To heat the heat sinks is a refrigerant ready, which transported in a ceiling-mounted line 110 becomes .

Figure 21 shows another application of the first or second embodiment of the invention. In the illustrated example of use, either devices 1a with two-sided interfaces can be used, or devices 1b with only one single-sided interface.

The devices la and lb are in a slot 26

mounted, which is open with an opening 261 to the space 2a and the space 2b. Within the shaft are reflectors 262, which reflect heat radiation 20, which enters through the opening 61, to the interface of the devices la or lb. In order to avoid soiling and / or to provide a decorative appearance, the openings 261 are closed with an optional sheet 251. If the device la is arranged on an inner wall 25 between a space 2a and a space 2b, This can be used for cooling the heat loads in both rooms.

Figure 22 shows a tenth embodiment of the invention in cross section. The following description is limited to the essential differences from the previous embodiments. Also in this case, like reference numerals designate like components of the invention.

The device 1 also contains in the tenth

Embodiment, a heat sink 10 with at least one

Interface 100 as described above. The surface 100 of the heat sink 10 opposite the interface 100 is provided with a thermal insulation 120. The thermal insulation 120 may, for example, contain or consist of a hard foam and / or a mineral wool and / or an organic insulating material.

In order to extract heat from the heat sink 10, a pipe register 11 is present in the illustrated embodiment, which can be flowed through, for example, by water or another known refrigerant. Through the pipe register, the heat sink is removed during operation heat.

Embodiment two surface elements 31 and 32nd

available. These each include a space 310 and 320. The surface elements 31 and 32 are transparent or translucent at least partially in the infrared spectral range of the room temperature radiation, so that the thermal radiation from the space 2 can pass through the surface elements 31 and 32 and can be absorbed by the boundary surface 100. This allows the operation of the device, which, for example, as a cooling ceiling or wall element

can be carried out, even at high humidity and high temperature spread, without it to the moisture loss and subsequent mold problem or

Harassment of users of the room is coming. The surface elements 31 and 32 can, as described above, made of glass or sintered, IR-transparent materials or

Plastic exist.

FIG. 22 also shows an edge bond 13, which receives the ends of the surface elements 31 and 32 and closes in an approximately gas-tight manner, so that moisture from the environment can not or only to a minor extent penetrate into the first interspace 310 and the second interspace 320 on the edge ,

According to the invention, it is now proposed that the interface 100 be provided with a fleece 160. This may be loose on the interface 100 or attached to the interface, for example by gluing. As can also be seen from FIG. 22, the fleece 160 extends over the edge seal 13 as far as the back 121 of the thermal insulation 120. The fleece 160 can be applied over the entire surface of the back 121 of the thermal insulation 120 or only as shown in the FIGURE cover.

If unwanted moisture penetrates into the intermediate space 310 during operation of the device 1 and condenses there on the boundary surface 100, it is removed from the intermediate space 310 by the capillary tensile forces arising in the nonwoven, so that problems due to condensing moisture are avoided.

The cause of the wicking of the web 160 is the surface tension of the fluid and the wettability of the pore surfaces within the web 160

Adhesion forces from liquid to solid material stronger are the molecular adhesion forces of the fluid, it comes to the capillary effect. On the basis of the model of the cylinder capillaries, the capillary effect can be very simplified but well described despite the complex pore structures. The capillary pulling forces the fluid in the pore accelerated. In contrast, the flow resistance works. Gravity, however, has only from pore radii greater than 6 μπι influence on the liquid transport. In the cylinder capillary model, the capillary effect is divided into two temporal phases: suction and redistribution. Upon contact with liquid water, the larger pores of the web absorb water into the interior of the web. The limit of pore radius size is the equilibrium of forces between

Flow resistance and capillary tensile forces. The flow resistance is proportional to the reciprocal of the radius of the pore in square, the tensile force is simply proportional to the reciprocal of the radius. The second phase is that

Redistribute after interruption of water supply. The not yet filled small pores suck the larger pores empty. The water content in the front part drops. The fleece thus absorbs the moisture inside the panel and distributes it over the entire fleece, up to above the

Edge composite on the outside 121 of the insulation 120th However, if on one side of the fleece colder

Temperatures prevail, so the liquid transport takes place in the direction of the warmer side. The driving potential is the relative humidity, which on the warm side, that is on the outside 121 of the thermal insulation,

lower than on the cold side, i. the interface 100.

In this way, the gap 310 can be kept permanently dry in a simple manner and without moving parts in order to ensure long-term trouble-free operation

To ensure device. Of course, the invention is not limited to the embodiment shown in the figures. The

The above description is therefore not to be considered as limiting, but as illustrative. The following

Claims are to be understood that a named feature is present in at least one embodiment of the invention. This does not exclude the presence of further features. As long as the claims and the above description define "first" and "second" embodiments, this designation serves to distinguish two similar embodiments without prioritizing them. Features of different embodiments of the invention may be combined at any time so as to obtain further embodiments of the invention.

Claims

claims

Device (1) comprising at least one heat sink (10) which has at least one boundary surface (100) facing a space (2), which can be brought to a temperature reduced relative to a heat load, wherein between the boundary surface (100) and the space (2 ) at least one surface element (31, 32) is arranged, which for thermal radiation at least partially

is permeable

characterized in that

the surface element (31, 32, 33, 34, 35, 36) is arranged at a distance from the boundary surface (100), so that

between the surface element (31, 32, 33, 34, 35, 36) and the interface (100) a gap (310, 320)

is trained and

the at least one surface element (31, 32, 33, 34, 35, 36) and the heat sink (10) are enclosed by an edge seal (13) which closes the gap (310, 320) in a gas-tight manner against the environment.

Apparatus according to claim 1, characterized in that the surface element (31, 32, 33, 34, 35, 36) at a wavelength between about 3 μπι and about 30 μπι or between about 6 μπι and about 20 μπι at least in a partial area a transmission greater than about 50% of, or greater than about 70% or greater than about 80%.

Apparatus according to claim 1 or 2, characterized in that the heat sink (10) contains a pipe register (11) and / or a plate heat exchanger.

Device according to one of claims 1 to 3, characterized in that there is also a device with which the intermediate space (310, 320) can be filled or evacuated with an inert gas.

5. Device according to one of claims 1 to 4, further comprising a dehumidifier (4), with which water from the intermediate space (310, 320) between the

Surface element (31, 32) and the interface (100)

is removable.

6. The device according to claim 5, characterized in that the dehumidifier (4) at least one sorbent (45) and / or at least one micropump (46) and / or at least one heating device (44) and / or at least one valve (41, 42 ) and / or at least one fan and / or a porous material and / or a nonwoven contains or consists thereof.

7. Device according to one of claims 1 to 6, characterized in that the at least one surface element (31, 32, 33, 34, 35, 36) contains or consists of a polymer

in that the at least one surface element (31, 32, 33, 34, 35, 36) is polyethylene and / or polymethyl methacrylate

and / or polyvinyl chloride and / or polypropylene and / or polyethylene terephthalate and / or polyester and / or

Contains or consists of cellulose acetate butyrate and / or cellulose acetate polymer.

8. Device according to one of claims 1 to 7, characterized in that it contains between one and three surface elements (31, 32, 33), which are each spaced from each other and to the interface (100) are arranged.

9. Device according to one of claims 1 to 8, characterized in that the edge composite (13), at least one sealing element (131) which contains or consists of polyisobutylene and / or silicone and / or butyl rubber or

that the edge bond (13) between the at least one surface element (31, 32, 33) and the heat sink (10) is available with by thermal joining or

that the edge bond (13) magnetic or mechanical Closing means, with which the at least one surface element (31, 32, 33) and the heat sink (10) can be coupled.

10. Device according to one of claims 1 to 9, further comprising at least one reflector (6, 61, 62), with which thermal radiation (20) on at least one interface (100) is reflective.

11. Device (1) containing at least one heat sink

(10), which has at least one boundary surface (100) facing a space (2), which can be brought to a temperature reduced relative to a heat load, wherein at least one surface element (31, 32) is located between the boundary surface (100) and the space (2) ) is arranged, which for thermal radiation at least partially

is permeable

characterized in that

the surface element (31, 32) is arranged at a distance from the boundary surface (100), so that between the

Surface element (31, 32) and the interface (100) has a gap (310, 320) is formed, wherein the at least one surface element (31, 32, 33) and the

Heat sink (10) are bordered with an edge seal (13) and the edge seal (13) magnetic or

having mechanical closure means, with which the at least one surface element (31, 32, 33) and the

Heat sink (10) can be coupled

12. The device according to claim 11, characterized

that the surface element (31, 32) at a wavelength between about 3 μπι and about 30 μπι or between about 6 μπι and about 20 μπι at least in a partial area a

Transmission of more than about 50% of or more than about 70% or more than about 80% show.

13. The apparatus of claim 11 or 12, characterized in that the heat sink (10) includes a pipe register (11) and / or a plate heat exchanger.

14. The device according to one of claims 11 to 13, characterized in that there is also a device with which the intermediate space (310, 320) can be filled with an inert gas or evacuated.

15. Device according to one of claims 11 to 14, further comprising a dehumidifying device (4), with which water from the intermediate space (310, 320) between the

Surface element (31, 32) and the interface (100) is removable.

16. The apparatus according to claim 15, characterized in that the dehumidifier (4) at least one

Sorbent (45) and / or at least one micropump (46) and / or at least one heating device (44) and / or at least one valve (41, 42) and / or at least one fan and / or a porous material and / or a nonwoven contains or consists of.

17. Device according to one of claims 11 to 16, characterized in that the at least one surface element (31, 32, 33, 34, 35, 36) contains or consists of a polymer

18. Device according to one of claims 11 to 17, characterized in that this between one and three

Contains surface elements (31, 32, 33) which are spaced apart from each other and to the interface (100).

are arranged.

19. Device according to one of claims 11 to 18, characterized in that the edge composite (13), at least one sealing element (131) contains, which polyisobutylene and / or silicone and / or butyl rubber or consists thereof.

20. Device according to one of claims 11 to 19, further comprising at least one reflector (6, 61, 62), with which heat radiation (20) on at least one interface (100) is reflective.

21. Device (1) containing at least one heat sink

is permeable

characterized in that

Surface element (31, 32) and the interface (100) a gap (310, 320) is formed and

furthermore comprising at least one reflector (6, 61, 62) with which heat radiation (20) can be reflected onto at least one boundary surface (100).

22. Device according to claim 21, characterized in that

23. The apparatus of claim 21 or 22, characterized in that the heat sink (10) includes a pipe register (11) and / or a plate heat exchanger.

24. Device according to one of claims 21 to 23, characterized in that further comprises a device is, with which the gap (310, 320) filled with an inert gas or can be evacuated.

25. Device according to one of claims 21 to 24, further comprising a dehumidifier (4), with which water from the intermediate space (310, 320) between the

Surface element (31, 32) and the interface (100) is removable.

26. The device according to claim 25, characterized in that the dehumidifying device (4) at least one

27. Device according to one of claims 21 to 26, characterized in that the at least one surface element (31, 32, 33, 34, 35, 36) contains or consists of a polymer

28. Device according to one of claims 21 to 27, characterized in that this between one and three

are arranged.

29. Device according to one of claims 21 to 28, characterized in that the at least one surface element (31, 32, 33) and the heat sink (10) with a

Edged edge (13) are bordered by the edge seal (13), at least one sealing element (131) containing, which Elastomer and / or Polyisobuthylen and / or silicone and / or butyl rubber contains or consists of or that the edge bond (13) between the at least one surface element (31, 32, 33) and the heat sink (10) is available with by thermal joining or

the edge composite (13) has magnetic or mechanical closure means with which the at least one surface element (31, 32, 33) and the heat sink (10) can be coupled.

30. Device according to one of claims 1 to 29, characterized in that the boundary surface (100) is at least partially provided with a non-woven (160).

31. The device according to claim 30, characterized in that extending the nonwoven fabric (160) over the edge compound (13) to the rear side (121) of the thermal insulation (120).

32. Method for air conditioning a room (2), with

at least one heat sink (10) which has at least one boundary surface (100) facing the space, which is brought to a temperature reduced relative to a heat load, characterized in that

between the interface (100) and the space (2) at least one surface element (31, 32, 33) is arranged, which is at least partially permeable to heat radiation.

33. The method according to claim 32, characterized in that the surface element (31, 32, 33) at a wavelength of the heat radiation (20) between about 6 μπι and about 20 μπι in at least a portion of a transmission of about 50% to about 90% shows.

34. The method according to any one of claims 32 or 33, characterized in that the heat sink (10) by means of a tube register (11) and / or a plate heat exchanger is cooled.

35. The method according to any one of claims 32 to 34, characterized in that the surface element (31, 32, 33) spaced from the interface (100), so that between the surface element (31, 32, 33) and the interface (100), a gap (310, 320, 330) is formed, which may optionally be filled or evacuated with an inert gas ,

36. The method according to claim 35, characterized in that the intermediate space (310, 320, 330) is dehumidified.

37. The method according to claim 36, characterized in that the dehumidification by at least one sorbent (45) and / or at least one micropump (46) and / or

at least one heating device (44) and / or one

Gas flow (39) takes place.

38. The method according to any one of claims 32 to 37, characterized in that heat radiation (20) by means of a reflector (6) on the at least one boundary surface (100) is reflected.

39. A method for heating a room (2), comprising at least one heat sink (10), which has at least one boundary surface (100) facing the room, which is brought to a relative to a heat sink located in the space (2) elevated temperature, characterized that

A method according to claim 39, characterized in that the heat sink (10) by means of a tube register (11) and / or a plate heat exchanger is heated.