WO2009102289A2 - Système et procédé de chauffage au sol - Google Patents

Système et procédé de chauffage au sol Download PDF

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Publication number
WO2009102289A2
WO2009102289A2 PCT/TR2009/000023 TR2009000023W WO2009102289A2 WO 2009102289 A2 WO2009102289 A2 WO 2009102289A2 TR 2009000023 W TR2009000023 W TR 2009000023W WO 2009102289 A2 WO2009102289 A2 WO 2009102289A2
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WO
WIPO (PCT)
Prior art keywords
soil
under
tank
hot fluid
fluid
Prior art date
Application number
PCT/TR2009/000023
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English (en)
Other versions
WO2009102289A3 (fr
Inventor
Ahmet Aydin
Original Assignee
Ahmet Aydin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ahmet Aydin filed Critical Ahmet Aydin
Publication of WO2009102289A2 publication Critical patent/WO2009102289A2/fr
Publication of WO2009102289A3 publication Critical patent/WO2009102289A3/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0052—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using the ground body or aquifers as heat storage medium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • the invention relates to a under soil heating system wherein solar power accumulated by solar power collectors heats the fluid in the pipes (vacuum tubes) of the collector, the heated fluid is conveyed to a fluid tank located under soil via a pump station (or natural circulation), the hot fluid in the fluid tank is conveyed to under soil pipe systems of different diameter and length laid under the soil, by means of a pump, the land, rock and salt mass in contact with the pipe system containing hot fluid circulation is heated, and a method for realization of such system.
  • patent application no JP58000059 the water obtained from stratum by means of double walled water pipe is conveyed to heat pump by means of a pump positioned at intermediate position of the water pumping pipe.
  • the water heated therein is sent to a group of heat pipes to a heat plate and heats the plate.
  • the energy of heated water is utilized for heating the enclosed locations and after utilization is returned to heating pump for circulation.
  • the patent no US4344414 discloses a system heating or cooling of buildings by use of solar energy.
  • the system comprises a solar power collector connected to fluid thermal unit and having fluid pipes. Solar collector sends the collected heat to the storage under the ground.
  • Thermal unit provides fluid convection between parts of the unit surrounded by lower and upper heat transfer jacKets.
  • a heat pump is located in the building which is to be heated or cooled.
  • Heat pump contains pipes for fluid circulation between lower and upper heat transfer jackets of embedded thermal unit and head pump.
  • An alternative embodiment of the system can be utilized to thaw frozen ground by use of thermal units consisting of only lower heat transfer jackets.
  • Patent application no. US4184477 discloses a system for utilizing solar energy which includes the use of solar collectors attached to liquid tubes or heat pipes.
  • the heat produced by heating the liquid in the fluid pipes by solar energy is stored in earth ground for auxiliary and long-term uses.
  • Heat transmission pipes are used to distribute the heat into big volume area under soil and the heat is extracted for use when required.
  • This application relates to a system providing long-duration storage of heat energy under soil and allowing use of it as independent heating source, particularly for meeting hot water and heating needs in houses, official and private buildings, swimming pools etc.
  • the system consists of a complex embodiment consisting of several parts such as evaporator, condenser etc. and provides convection heating of mass land, rock and saline masses in contact with the pipe system where hot water is circulated, and provides a solution for re-use of heat stored in the soil during particularly winter months.
  • the purpose of the invention is to disclose an under soil heating system wherein solar power accumulated by solar power collectors heats the fluid in the pipes (vacuum tubes) of the collector, the heated fluid is conveyed to a fluid tank located under soil via a pump, the hot fluid in the fluid tank is conveyed to under soil pipe O
  • the land, rock and salt mass in contact with the pipe system containing hot fluid circulation is heated by convection and the heat energy stored under soil can be used to provide heating of enclosed locations particularly in winter months, to prevent icing on airport runways or roads.
  • the under soil heating system being subject of the invention increases constant temperature of soil of 13-15 0 C to 90 0 C by use of solar energy and thus enables use of the heat energy stored under the soil later in particularly winter months for heating the enclosed locations and prevention of icing on roads.
  • the main purpose of the invention is to realize a system by use of several articles and devices used at present but use thereof together not considered and also by applying a system not applied before.
  • This embodiment will decrease import of energy by means of natural sources and provide an important step for prevention of distortion of development and natural balances.
  • Another purpose of the invention is to provide much more energy production by consumption of less energy while CO 2 increases fast and fossil fuels contaminate the world. More importantly, the under soil heating system being subject of this invention prevents emission of harmful gas into nature as carbon dioxide and fossil fuels will not be used.
  • the energy needed for operation of the system is illumination energy of a few hundred Watts in electricity energy. Operation of under soil heating system is provided by means of a solar battery support of one or two Kw to be installed, without need for any power from outside, and for instance, needs of 50 or 100 apartments are met.
  • the under soil heating system has the following advantages and fields of utilization. a) Under soil heating system can be used to meet heating needs and hot water needs of detached, single-storey and multi-storey houses.
  • Heating of water at existing hotels, hammams and thermal facilities can also be provided by use of this system.
  • thermal tourism can be supported by means of providing new thermal facilities by heating high quality cold spring water without having hot water source.
  • Green houses can be constructed in any climates and high efficiency and revenue can be provided by Use of under soil heating system. Thus, great opportunities are created for ecological cultivating.
  • Under soil heating system can be installed at airport runways, highways.
  • the system can be installed at the highway points where traffic accidents occur due to icing on in-city and inter-city highways and thus traffic accidents can be prevented.
  • traffic accidents occur due to icing on in-city and inter-city highways and thus traffic accidents can be prevented.
  • traffic accidents can be prevented.
  • the system may operate efficiently for several years in any fields of industry where hot water is needed and thus CO 2 release is reduced as well as costs are decreased.
  • the invention has been developed as an under soil heating system which increases constant temperature of soil to high degrees by use of sun in summer and thus enables use of the heat energy stored under the soil later in particularly winter months for heating the enclosed locations and prevention of icing on roads and it is characterized in that it consists of;
  • a pipe system providing heat storage in the soil, rock and saline masses through convection by means of hot fluid flowing inside and where the hot fluid stored inside the hot fluid tank is conveyed through connection components by means of at least one pump.
  • Figure 1 Shows schematic view of under soil heating system being subject of the invention.
  • Figure 2 Shows overall perspective view of under soil heating system being subject of the invention.
  • Figure 3 Shows perspective view of fluid inlet and return pipes of the pipe system.
  • Figure 4 Shows perspective view of the mounted position of pump and connection components. Reference Numbers
  • the invention relates to a under soil heating system wherein solar power accumulated by solar power collectors (1 ) heats the fluid in the pipes (vacuum tubes) of the collector (1 ), the heated fluid is conveyed to a fluid tank (2) located under soil via a pump (P1 ), the hot fluid in the hot fluid tank (2) is conveyed to under soil pipe systems (3) of different diameter and length laid under the soil, by means of a different pump (P2), the land, rock and salt mass in contact with the pipe system (3) containing hot fluid circulation is heated by way of convection, and a method for realization of such system.
  • Preferably high efficient, vacuum tube solar collectors are used as solar energy collectors (1 ).
  • the hot water supplied to the hot fluid tank (2) constructed under soil from the said collectors is conveyed there by means of a pump (P1) and heated.
  • the temperature of the hot fluid in the tank (2) ranges between maximum 90 0 C and 99 0 C.
  • hot fluid in the tank (2) is conveyed into under soil pipe system (3) and soil mass is heated by means of convection.
  • Various sensor means such as sensor and thermostat can be used to measure the temperature of and changes in temperature of the fluid in the tank (2).
  • the heat energy stored therein can be used again to heat the enclosed locations or prevent icing on the roads particularly in winter.
  • the hot fluid flowing in the pipe system (3) in contact with soil transmits its heat into soil and then returns to the hot fluid tank (2), and mixes with hot fluid there and after achievement of high temperature again, is sent to pipe system (3) through pump (P2) and can be used.
  • P2 pump
  • constant circulation in the system is provided.
  • the fluid in the tank is heated by means of the heat energy stored in the soil mass and the fluid in the tank (2) is used to heat enclosed locations such as houses and to prevent icing on roads.
  • the hot water heated in solar energy collectors (1 ) passes through pump (P1 ) and connection components (4) and is conveyed to the hot fluid tank (2).
  • the fluid in the hot fluid tank (2) is conveyed to under soil pipe system (3) by means of a different pump (P2) and huge soil, rock and salt masses are heated by the hot fluid passing through the pipes and heat energy is stored in such masses of low heat transmission coefficient.
  • the said tank (2) contains hot fluid of maximum 90 0 C - 99 0 C temperature.
  • the hot fluid in the tank (2) is sent by means of a pump (P2) into the pipe system (3) laid in a manner extending from soil surface (5) downwards and thus circulation thereof in the said pipe system (3) is provided.
  • the hot fluid circulating in the pipe system (3) is used to heat great volume of soil, rock and salt masses by means of convection.
  • the system operates fully in closed circuit.
  • the pipe system (3) consists of several pipes laid one by one and preferable is 30-90 m. deep from soil surface (5) downward.
  • tank (2) Upon a certain capacity of consumption, it is designed in a manner the temperature of tank (2) remains minimum at 40 0 C and maximum 99 0 C.
  • this amount can be increased to about 62.125.000 Kcal/year in a couple of years with lateral and downward heating.
  • the tank (2) should be located at least 4-5 m under the soil surface (5). Upper and side surfaces of the hot fluid tank (2) have been insulated against heating. Lower surface of the hot fluid tank (2) facing downward the soil has been left heat transfer free. In other words, no insulation has been made.
  • Hot fluid tank (2) is preferably reinforced building of 2 x 4 x 1 ,5 m size and 12.000 It capacity in the illustrative example. Hot fluid tank (2) can also be made of plastic or metal materials. Internal surface has been sealing insulated. The deep of the hot fluid tank (2) to soil surface should be increased if there are trees around and plants of deep root that can be influenced by the heat.
  • Hot fluid tank (2) can also be built in a size capable to store up to targeted 47.250.000 Kcal energy. However, in this case, it would be required to build a tank (2) capable to intake 555 tons water. In this case, as the tank (2) to be built must be durable against earthquake, the cost may increase.
  • Solar energy collectors of average 70.000Kcal/h capacity are needed as solar energy collectors (1) for about 200 sunny days.
  • the targeted energy sum can be exceeded by obtaining efficiency from burning sun in spring months close to level in summer months.
  • collectors can collect energy by day light even when the weather is not sunny, this energy can be used to perform works requiring less heat difference, lower heat requiring works such as heating green houses and swimming pools.
  • the fluid transferring heat from collector to tank (2) and conveying the energy transferred to earth is mixed with engine oil at 20% rate. This provides long life of galvanized under soil heating system as well as increases viscosity and therefore facilitates transmission.
  • Pe or pprc pipes bent in helix of capacity providing same heat conductivity can also be used instead of galvanized pipe.
  • This steel mesh and pipe system are connected in parts and downed into the borehole. Then the cover thereof is filled with at least C25 dose concrete with increased heat permeability coefficient.
  • the number of reinforced concrete tube system of 30 m depth to be used in the system is 21.
  • saline of solid phase is filled into the new boreholes of 40 or 50 cm diameter to be drilled between the said 21 -concrete bar system and the heat capacity of the system is increased much more. After filling saline under the soil, it turns into liquid because of high temperature. Saline can store heat energy eight times more than rock and 2,5 times more than water. In this case, by filling salt into 12 saline boreholes of 50 cm diameter drilled between 21 tube bar system 70 m 3 saline stores an amount of energy to be stored by 560 m 3 in addition to the amount to be stored by
  • the same system can be constructed in any geometrical form and number into mountain by means of rotary excavators of horizontal, lateral or 12 inch or different diameters.
  • Inlet and return pipes at one meter distance on upper part are connected to hot water tank via a pump (P2) also supported with valves to turn on and off when required, by use of convenient connection components (4) of low heat permeability coefficient and insulation and thus conduction and convection of heat into earth is provided.
  • Upper surface of these parts, including pipes should be insulated. The area required for entire of this system is 21 m 2 but the area where to be insulated must be at least 3-4 times of that area.
  • a layer should be provided with pumice or pearlite starting from 3 - 5 meters under the surface and water drainage must be constructed. Other insulation materials may also be used in this part. It should be covered with the soil enabling continuation of natural life.
  • Capacity of rock to retain heat is 1/3,2 times of capacity of water. This capacity increases when the rate of water or rock density increases. The calculations are made on bases of rock.
  • the under soil pipe system (3) will heat its own volume in initial year, its capacity to retain heat will be equal to its volume. As the rock is of property to retain heat equal to 1/3,2 of the water, only that amount of targeted energy can be obtained. However, in the following years spreading to four directions and downward will occur and it will retain heat equal to at least four-five times of the volume, the targeted energy can be stored in the under soil system. In the years thereafter, the efficiency may even exceed the expected level of 47.250.000 Kcal/ year.
  • connection components (4) connecting the solar energy collectors (1 ), hot fluid tank (2) and pipe system (3) should be selected in a manner providing low heat conductivity coefficient on soil and high coefficient under the soil.
  • the connection components running on soil or on surface should be insulated with material of high insulation value.
  • the purpose of high conductivity under soil is to facilitate heat exchange under the soil. Another purpose is to not lose heat on the soil. For that reason, transmission and connection components should also be insulated with material of low heat transmission coefficient.
  • underground water One of the important matters to be taken into account for under soil heating system is the underground water. As underground water would take the heating energy away, measurement should be made before installation of the system and investment should be initiated after discovery of no nearby water sources causing heat transfer.
  • water sources discovered during measurement can be extracted onto the ground in the form of spring, it can be a matter to be assessed separately as artificial underground hot water source.
  • the area where the system will be installed should be land of minimum 5-10% slope. If the sloppy area faces south, it can provide an advantage if not much, in terms of sunlight and provides natural circulation of heat transfer between solar energy collector (1) and hot water tank (2) and thus provides energy saving. Although the high efficiency is not achieved in terms of reaching optimum level of energy accumulation in the initial years, the intended result will be achieved starting from second year as a result of heating of land and neighbourhood where the system is installed.
  • Costs may be perceived differently subject to condition of the place, type of construction and requirement priorities.
  • the period of investment return is 5 (five) years based on the coarse calculations given above.
  • the government may distribute such costs incurred by it to provide establisher power to the investor as incentive.
  • Some European Union Member States grant 3500 Euro state aid and 3500 Euro long term loan for projects amounting to 7.000 Euros and try to ensure less Electric consumption from interconnection system provided that solar battery systems capable to produce daily 1 ,5 - 2 Kwa/h energy are installed in the houses.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)
  • Greenhouses (AREA)

Abstract

L’invention concerne un système de chauffage au sol dans lequel l’énergie solaire accumulée par des collecteurs d’énergie solaire (1) chauffe le fluide dans les tuyaux (tubes à vide) du collecteur, le fluide chauffé est acheminé vers un réservoir de fluide (2) situé sous le sol via une pompe (P1), le fluide chaud dans le réservoir de fluide chaud (2) est acheminé vers des systèmes de tuyau sous le sol (3) de diamètre et longueur différents posés sous le sol, au moyen d’une pompe différente (P2), la masse de terre, de roche et de sel en contact avec le système de tuyau (3) contenant une circulation de fluide chaud est chauffée par convection ; et un procédé de réalisation d’un tel système.
PCT/TR2009/000023 2008-02-13 2009-02-12 Système et procédé de chauffage au sol WO2009102289A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2008/00946A TR200800946A2 (tr) 2008-02-13 2008-02-13 Toprak altı ısıtması île sıcak su sistemi.
TR2008/00946 2008-02-13

Publications (2)

Publication Number Publication Date
WO2009102289A2 true WO2009102289A2 (fr) 2009-08-20
WO2009102289A3 WO2009102289A3 (fr) 2010-10-07

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WO (1) WO2009102289A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018016972A3 (fr) * 2016-07-22 2018-04-05 Nmbu Collecte et stockage d'énergie solaire thermique
CN114576867A (zh) * 2022-01-20 2022-06-03 自然资源部第一海洋研究所 一种基于太阳能光热储能的干热岩发电供热系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184477A (en) * 1977-05-03 1980-01-22 Yuan Shao W Solar heating and storage
WO1980002736A1 (fr) * 1979-05-30 1980-12-11 Hagconsult Ab Utilisation du sol sous des structures de constructions pour l'emmagasinage ou l'enlevement calorifique.
US4244350A (en) * 1979-03-26 1981-01-13 The United States Of America As Represented By The Secretary Of The Navy Solar energy heat-storage tank
US4416116A (en) * 1981-03-21 1983-11-22 Kueckens Alexander Thermal engine arrangement
US6220339B1 (en) * 1995-09-12 2001-04-24 Edmond D. Krecke Energy system for buildings
DE202008002342U1 (de) * 2008-02-19 2008-07-03 Strebe, Jürgen Solarsonde

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184477A (en) * 1977-05-03 1980-01-22 Yuan Shao W Solar heating and storage
US4244350A (en) * 1979-03-26 1981-01-13 The United States Of America As Represented By The Secretary Of The Navy Solar energy heat-storage tank
WO1980002736A1 (fr) * 1979-05-30 1980-12-11 Hagconsult Ab Utilisation du sol sous des structures de constructions pour l'emmagasinage ou l'enlevement calorifique.
US4416116A (en) * 1981-03-21 1983-11-22 Kueckens Alexander Thermal engine arrangement
US6220339B1 (en) * 1995-09-12 2001-04-24 Edmond D. Krecke Energy system for buildings
DE202008002342U1 (de) * 2008-02-19 2008-07-03 Strebe, Jürgen Solarsonde

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018016972A3 (fr) * 2016-07-22 2018-04-05 Nmbu Collecte et stockage d'énergie solaire thermique
EP3488170A4 (fr) * 2016-07-22 2020-04-08 Nmbu Collecte et stockage d'énergie solaire thermique
US11549725B2 (en) 2016-07-22 2023-01-10 Nmbu System for storing and retrieving thermal energy
CN114576867A (zh) * 2022-01-20 2022-06-03 自然资源部第一海洋研究所 一种基于太阳能光热储能的干热岩发电供热系统

Also Published As

Publication number Publication date
TR200800946A2 (tr) 2009-08-21
WO2009102289A3 (fr) 2010-10-07

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