WO2012091266A2 - Échangeur géothermique comprenant un caloduc de type capillaire, appareil permettant d'empêcher une route/un pont de geler et appareil de refroidissement et de chauffage géothermique - Google Patents

Échangeur géothermique comprenant un caloduc de type capillaire, appareil permettant d'empêcher une route/un pont de geler et appareil de refroidissement et de chauffage géothermique Download PDF

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Publication number
WO2012091266A2
WO2012091266A2 PCT/KR2011/007920 KR2011007920W WO2012091266A2 WO 2012091266 A2 WO2012091266 A2 WO 2012091266A2 KR 2011007920 W KR2011007920 W KR 2011007920W WO 2012091266 A2 WO2012091266 A2 WO 2012091266A2
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WO
WIPO (PCT)
Prior art keywords
heat
ground
heat pipe
pipe
geothermal
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Application number
PCT/KR2011/007920
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English (en)
Korean (ko)
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WO2012091266A3 (fr
Inventor
이상철
Original Assignee
주식회사 자온지
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Filing date
Publication date
Application filed by 주식회사 자온지 filed Critical 주식회사 자온지
Priority to CA2802077A priority Critical patent/CA2802077A1/fr
Publication of WO2012091266A2 publication Critical patent/WO2012091266A2/fr
Publication of WO2012091266A3 publication Critical patent/WO2012091266A3/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/30—Geothermal collectors using underground reservoirs for accumulating working fluids or intermediate fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/40—Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • F25B23/006—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect boiling cooling systems
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Definitions

  • the present invention relates to a geothermal heat exchanger using a tubular heat pipe, a road-bridge freezing prevention device and a geothermal heating and cooling device using the same.
  • Renewable energy can be obtained indefinitely from nature such as wind, solar, geothermal and air, and from waste water discarded in factories.
  • geothermal heat is relatively unaffected by external conditions compared to using air, wind and solar heat as heat sources, and thus, geothermal heat is relatively stable and useful by using geothermal heat that changes little during the year.
  • the conventional geothermal devices using only the temperature difference between the ground and the ground due to temperature changes, the efficiency is low and there is a limit to the amount of energy that can be obtained.
  • hot water pipes and the like are embedded deep in the basement, but additionally, a device such as a high-performance pump is required, which causes complicated equipment and difficult maintenance. There is also the difficulty of installing pipes and devices deep underground.
  • the present invention provides a geothermal heat exchanger using a tubular heat pipe that can increase the amount of geothermal heat and energy efficiency that can be used as an energy source, a road-bridge freezing prevention device, and a geothermal heating and cooling device using the same.
  • the present invention also provides a geothermal heat exchanger using a tubular heat pipe, which is simple to install and maintain, a road-bridge freezing prevention device and a geothermal air conditioning system using the same.
  • the heat exchanger for absorbing the heat of the ground or to release the heat to the ground, formed in a tubular shape, the working fluid is injected, one side is the heat exchanger
  • the heat transfer heat pipe is disposed adjacent to each other, and the other side includes a heat transfer heat pipe embedded in the ground.
  • the heat transfer heat pipe transfers and stores the heat of the heat exchanger to the ground.
  • the heat transfer heat pipe is provided with a geothermal heat exchanger having a tubular heat pipe, characterized in that for transferring the heat of the ground to the heat exchange unit.
  • the heat exchange part may be formed in a tubular shape, the working fluid is injected, and may include a heat exchange heat pipe coupled with the heat transfer heat pipe.
  • the heat exchange heat pipe and the heat transfer heat pipe may be formed of an integrated tubular heat pipe, and the integrated tubular heat pipe may be formed to alternately reciprocate the ground and the ground.
  • It may further include an auxiliary heat source for transferring heat to the heat transfer pipe.
  • a geothermal heat exchanger having the tubular heat pipe, wherein the heat exchange unit is coupled to the heat transfer to the road, to absorb the heat of the road into the ground or Provided is a road freezing prevention device characterized in that heat is radiated to the road.
  • the heat exchanger may include a tubular heat pipe embedded in the road.
  • thermoelectric unit comprising a geothermal heat exchanger having the tubular heat pipe, wherein the heat exchange unit is coupled to the heat transfer to the bridge, to absorb the heat of the bridge into the ground or the underground
  • a bridge frost preventing device is provided by heat dissipating heat into the bridge.
  • the heat exchange part may include a tubular heat pipe embedded in the bridge upper plate.
  • the bridge may further include a heat transfer member extending from the bridge to the ground for supporting the bridge and disposed adjacent to the heat exchange unit and the heat transfer heat pipe to transfer heat between the heat exchange unit and the heat transfer heat pipe.
  • the heat exchange unit is coupled to the heat transfer to the inside of the ground structure, so as to absorb the heat inside the ground structure to the ground Geothermal air-conditioning and heating device is provided by heat dissipating the ground heat into the ground structure.
  • the above ground structure may be mined into the inside, and the heat exchange part may include a tubular heat pipe embedded in the mined surface.
  • 1 and 2 is a view for explaining a geothermal heat exchanger having a tubular heat pipe according to an embodiment of the present invention and a road freezing prevention device using the same.
  • FIG. 3 is a view for explaining a bridge ice preventing device using a geothermal heat exchanger having a tubular heat pipe according to an embodiment of the present invention.
  • FIG. 4 is a view for explaining a geothermal heating and cooling device using a geothermal heat exchanger having a tubular heat pipe according to an embodiment of the present invention.
  • FIG. 5 is a view illustrating a geothermal heating and cooling device using a geothermal heat exchanger having a tubular heat pipe according to another embodiment of the present invention.
  • FIG 1 and 2 are views illustrating a geothermal heat exchanger having a tubular heat pipe and a road freezing prevention device using the same according to an embodiment of the present invention.
  • Geothermal heat exchanger having a capillary heat pipe includes a heat exchanger (12, 14) and heat transfer heat pipe 20, the ground natural force in the form of thermal energy (ground, 1 ) And reused thermal energy accumulated in the ground (1).
  • the road freezing prevention device of the present embodiment includes a geothermal heat exchanger having a tubular heat pipe, characterized in that it is possible to prevent the freezing of the road 5 in the winter season without additional equipment.
  • the heat exchange part is a portion that connects the heat transfer heat pipe 20 embedded in the ground 1 to the ground so as to be capable of heat transfer, and serves to transfer heat energy at a high temperature to a low temperature.
  • the heat exchanger of the present embodiment is installed adjacent to the ground, and when the ground is heated, absorbs the thermal energy of the ground and transfers it to the heat transfer heat pipe 20, and when the ground is cooled, absorbs the thermal energy from the heat transfer heat pipe 20 to the ground To emit.
  • the heat exchange part is coupled to the road 5 to enable heat transfer.
  • the heat exchange part includes a heat exchange heat pipe 12 made of a tubular heat pipe capable of rapidly transferring a large amount of heat, and the heat exchange heat pipe 12 is embedded in the road 5 so that the road 5 and The heat exchange unit may be coupled to the heat transfer (a detailed description of the tubular heat pipe will be described later). Accordingly, when the temperature of the road 5 is higher than the ground 1 as in the summer, the ground heat energy is transmitted to the heat transfer heat pipe 20. On the contrary, the temperature of the road 5 as in the winter is 1 When lowered, the heat energy may be received from the heat transfer heat pipe 20 and discharged to the road 5.
  • the heat transfer heat pipe 20 is a part that transfers the heat energy transferred to the heat exchanger to the ground 1 or transfers the heat energy stored in the ground 1 back to the heat exchanger.
  • one side of the heat transfer heat pipe 20 of the present embodiment is disposed adjacent to the heat exchanger to enable heat transfer with the heat exchanger, and the other side extends to the ground 1 to store thermal energy.
  • the heat transfer heat pipe 20 of the present embodiment consists of a tubular heat pipe into which the working fluid 23 is injected so as to quickly transfer a large amount of heat energy while minimizing heat loss.
  • vibrating tubular heat pipes can be used.
  • the vibrating tubular heat pipe has a structure in which the inside of the tubule 22 is sealed from the outside after the working fluid 23 and the bubble 24 are injected into the tubule 22 at a predetermined ratio. Accordingly, the vibrating tubular heat pipe has a heat transfer cycle for transporting a large amount of heat in latent form by volume expansion and condensation of the bubble 24 and the working fluid 23.
  • the vibrating capillary heat pipe may include a capillary tube made of a metal material such as copper and aluminum having high thermal conductivity. Accordingly, while conducting heat at a high speed, the volume change of the bubbles 24 injected therein can be caused quickly.
  • the heat pipe formed of the tubule 22 may have a large heat transfer area to volume, and thus may rapidly absorb or release a large amount of heat.
  • heat transfer is excellent in any direction, and there is an advantage in that the arrangement is free.
  • the communication structure of the vibrating tubular heat pipe can be both an open loop (close loop) and (close loop).
  • all or part of the vibrating tubular heat pipe may be in communication with a neighboring vibrating tubular heat pipe.
  • the plurality of vibrating capillary heat pipes may have an open loop or closed loop shape as a design necessity.
  • the heat exchange heat pipe 12 and the heat transfer heat pipe 20 of the present embodiment may be formed of an integrated tubular heat pipe.
  • the integrated tubular heat pipe may be formed to alternately reciprocate the ground and the ground (1). At this time, the portion buried adjacent to the ground in the tubular heat pipe becomes the heat exchange heat pipe 12, and the portion deeply buried in the ground 1 becomes the heat transfer heat pipe 20.
  • the temperature of the roadway 5 becomes much higher than the air temperature in the summer so that much heat energy is accumulated in the roadway 5.
  • the heat exchange heat pipe 12 made of a tubular heat pipe absorbs a large amount of heat energy of the road 5 by using a large heat transfer area, and the heat transfer heat pipe 20 connected to the heat exchange heat pipe 12. Can quickly transfer the absorbed thermal energy to the ground (1). Accordingly, heat energy is continuously accumulated in the ground 1 during the summer. In other words, by using the land as a heat storage to store the heat energy, the amount of available geothermal heat can be increased.
  • the present embodiment may further include an auxiliary heat source for transferring heat to the heat transfer pipe in order to increase the thermal energy stored in the ground (1).
  • the natural force may be changed into thermal energy and used as the auxiliary heat source 30. That is, the solar cell can be used as an auxiliary heat source by converting sunlight into thermal energy or converting natural force into thermal energy by various known methods for converting kinetic energy such as wind into thermal energy.
  • heat energy is transferred to a heat transfer heat pipe 20 by using a heat pipe 32 or the like that transfers heat energy.
  • the heat exchange heat pipe 12 releases heat energy supplied from the heat transfer heat pipe 20 to the road 5 to raise the temperature of the road 5 to freeze. You can prevent it.
  • the heat transfer heat pipe 20 is stored during the summer and serves to continuously raise the heat energy accumulated in the ground (1).
  • the tubular heat pipe has high heat transfer efficiency due to rapid heat transfer as described above, thereby minimizing heat lost to the surroundings in the heat transfer process, thereby increasing the energy efficiency of geothermal heat transferred to the ground.
  • the geothermal heat exchanger of the present embodiment can be used when necessary to store the thermal energy in the ground (1) by using a tubular heat pipe excellent in heat transfer performance in both directions.
  • the ground as a heat storage device that stores the thermal energy by using the heat resistance of the ground, the amount of ground heat available compared to the conventional geothermal heat exchanger using only the temperature difference between the ground and the ground (1) due to the temperature change innovatively Can be increased.
  • geothermal heat exchanger of this embodiment can also be used as a bridge freezing prevention device.
  • FIG. 3 is a view for explaining a bridge ice preventing device using a geothermal heat exchanger having a tubular heat pipe according to an embodiment of the present invention.
  • the heat exchange unit is coupled to the bridge so as to be capable of heat transfer, thereby absorbing the heat of the bridge into the ground (1) or radiating heat from the ground (1) to the bridge. Can be.
  • the heat exchange part includes a heat exchange heat pipe 12 made of a tubular heat pipe capable of rapidly transferring a large amount of heat, and the heat exchange heat pipe 12 is embedded in the upper plate 6 of the bridge to exchange heat with the bridge. Additional heat transfer can be combined. Under the ground supporting the bridge, a heat transfer heat pipe 20 made of a tubular heat pipe is embedded in the ground 1.
  • the heat exchange heat pipe 12 receives the thermal energy stored during the summer in the ground 1 and releases it to the bridge to prevent freezing of the bridge.
  • the bridge from the bridge may further include a heat transfer member 15 extending to the ground to support the heat exchanger and disposed adjacent to the heat transfer heat pipe 20.
  • a weak heat pipe may be used as the heat transfer member 15 to rapidly transfer a large amount of heat between the heat exchange heat pipe 12 and the heat transfer heat pipe 20.
  • the wick type heat pipe includes a sealed pipe into which a working fluid is injected, a wick in which the working fluid moves on the inner wall of the pipe, and a vapor moving space in which the vaporized working fluid moves in the pipe.
  • the working fluid vaporized in the heat transfer portion is moved to the heat transfer unit for transferring heat to the outside through the steam moving space.
  • the vaporized working fluid moved to the heat transfer unit is condensed to transfer the heat of vaporization to the heat transfer unit.
  • the condensed working fluid is returned to its original position via the wick.
  • a heat transfer cycle for transferring heat to the heat transfer unit is made.
  • the wick type heat pipe having the heat transfer structure described above has a relatively large diameter tube and a large amount of working fluid is injected therein as compared with the tubular heat pipe. Accordingly, a large amount of heat can be quickly transferred through a process in which a large number of working fluids are vaporized and condensed at a time. Therefore, the heat energy can be quickly transmitted to minimize heat loss so that the heat of the bridge or the ground 1 is not accumulated.
  • the heat transfer member 16 of the present embodiment is made of a tubular heat pipe, it may be formed integrally with the heat transfer heat pipe 20.
  • the tubular heat pipe is connected to the ground across the bridge, the end of the tubular heat pipe may be installed to be deeply buried underground.
  • the portion of the tubular heat pipe that crosses the bridge and is adjacent to the heat exchange heat pipe 12 becomes the heat transfer member 16, and the end of the tubular heat pipe embedded in the ground becomes the heat transfer heat pipe 20.
  • the heat transfer member 16 and the heat transfer heat pipe 20 can be easily integrated by constructing the tubular heat pipe integrally.
  • geothermal heat exchanger of this embodiment can also be used as a geothermal heating and cooling device.
  • FIG. 4 is a view illustrating a geothermal heating and cooling device using a geothermal heat exchanger having a capillary heat pipe according to an embodiment of the present invention.
  • the heat exchange unit is coupled to the inside of the ground structure so as to be capable of heat transfer, thereby absorbing the heat inside the ground structure to the ground (1) or the heat of the ground (1). Can dissipate into the ground structure.
  • the geothermal heat exchanger is used as a geothermal air conditioning system for controlling the temperature of the greenhouse 40.
  • the heat exchange part composed of the heat exchange heat pipe 12 is buried in the bottom 7 of the greenhouse 40 to allow heat transfer to the inside of the greenhouse 40, and the heat transfer heat pipe 20 connected to the heat exchange heat pipe 12 is underground. It is buried in (1).
  • the heat energy may be absorbed by the heat exchange heat pipe 12 and stored in the ground 1 through the heat transfer heat pipe 20 in the greenhouse 40 having a high temperature. That is, in summer, the heat energy may be taken away from the greenhouse 40 to lower the temperature inside the greenhouse 40.
  • the heat exchange heat pipe 12 may be disposed to be embedded in the mined surface so as to further increase the thermal energy stored in the ground (1).
  • the heat exchange heat pipe 12 may perform the heating of the greenhouse 40 by receiving heat energy stored during summer in the ground 1 from the heat transfer heat pipe 20 and releasing it into the greenhouse 40.
  • FIG. 5 is a view illustrating a geothermal air conditioning system using a geothermal heat exchanger having a tubular heat pipe according to another embodiment of the present invention.
  • the geothermal heat exchanger is used as a geothermal air conditioning system for controlling the temperature of the house 50.
  • the heat exchange part of the present embodiment includes a geothermal boiler 14 for cooling and heating the house 50.
  • the geothermal boiler 14 includes a heat pump that discharges heat into the housing 50 or absorbs heat inside the housing 50, and a heat storage tank that accumulates heat.
  • the geothermal boiler 14 is configured to be capable of heat transfer with the heat transfer heat pipe 20 embedded in the ground 1.
  • a water pipe 17 connected to the geothermal boiler 14 may be disposed adjacent to the heat transfer heat pipe 20 to transfer thermal energy between the geothermal boiler 14 and the heat transfer heat pipe 20.
  • the above-described weak heat pipe may be disposed adjacent to the geothermal boiler 14 and the heat transfer heat pipe 20.
  • the geothermal boiler 14 absorbs heat energy inside the house 50 and stores it in the ground 1 to lower the temperature of the inside of the house 50 to perform cooling, and to store it in the ground 1 in winter.
  • the heat energy may be discharged into the house 50 to perform heating.
  • the amount of geothermal heat that can be used can be increased by accumulating the natural forces on the ground in the form of thermal energy.

Abstract

L'invention concerne un échangeur géothermique comprenant un caloduc de type capillaire, un appareil permettant d'empêcher une route/un pont de geler et un appareil de refroidissement et de chauffage géothermique. L'échangeur géothermique comprend : une partie d'échange de chaleur disposée adjacente au sol de manière à absorber la chaleur provenant du sol ou d'évacuer la chaleur vers le sol ; et un caloduc de type capillaire permettant de transférer la chaleur, dans lequel un fluide de travail est injecté, un côté du caloduc permettant de transférer la chaleur étant disposé adjacent à la partie d'échange de chaleur de manière à transférer la chaleur et l'autre côté de celui-ci étant enterré sous terre. Lorsque la surface du sol est plus chaude que le sous-sol, le caloduc permettant de transférer la chaleur transfère la chaleur depuis la partie d'échange de chaleur vers le sous-sol afin de stocker la chaleur. Lorsque la surface du sol est plus froide que le sous-sol, le caloduc permettant de transférer la chaleur transfère la chaleur du sous-sol vers la partie d'échange de chaleur. L'énergie naturelle provenant du sol peut ainsi être accumulée sous terre sous la forme d'énergie thermique de manière à augmenter la chaleur disponible dans la terre. En outre, le caloduc de type capillaire, qui comprend une zone de transfert de chaleur étendue et présente une efficacité de transfert de chaleur élevée, permet de réduire au minimum la perte d'énergie et d'améliorer le rendement de l'énergie thermique de la terre. Le caloduc de type capillaire peut également être utilisé seul sans dispositif fonctionnel supplémentaire, comme une pompe, afin de stocker facilement l'énergie thermique et permet de faciliter l'installation et les opérations de réparation/maintenance de l'échangeur géothermique.
PCT/KR2011/007920 2010-12-30 2011-10-24 Échangeur géothermique comprenant un caloduc de type capillaire, appareil permettant d'empêcher une route/un pont de geler et appareil de refroidissement et de chauffage géothermique WO2012091266A2 (fr)

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Application Number Priority Date Filing Date Title
CA2802077A CA2802077A1 (fr) 2010-12-30 2011-10-24 Echangeur geothermique comprenant un caloduc de type capillaire, appareil permettant d'empecher une route/un pont de geler et appareil de refroidissement et de chauffage geothermique

Applications Claiming Priority (2)

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KR10-2010-0139222 2010-12-30
KR1020100139222A KR101220521B1 (ko) 2010-12-30 2010-12-30 세관형 히트파이프를 구비한 지열교환장치, 이를 이용한 도로-교량결빙 방지장치 및 지열 냉난방장치

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WO2012091266A2 true WO2012091266A2 (fr) 2012-07-05
WO2012091266A3 WO2012091266A3 (fr) 2012-08-23

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