CA2802077A1 - Geothermal exchanger including a capillary-type heat pipe, apparatus for preventing icing on a road/bridge, and geothermal cooling and heating apparatus - Google Patents

Geothermal exchanger including a capillary-type heat pipe, apparatus for preventing icing on a road/bridge, and geothermal cooling and heating apparatus Download PDF

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Publication number
CA2802077A1
CA2802077A1 CA2802077A CA2802077A CA2802077A1 CA 2802077 A1 CA2802077 A1 CA 2802077A1 CA 2802077 A CA2802077 A CA 2802077A CA 2802077 A CA2802077 A CA 2802077A CA 2802077 A1 CA2802077 A1 CA 2802077A1
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CA
Canada
Prior art keywords
heat
ground
heat pipe
capillary
underground
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA2802077A
Other languages
French (fr)
Inventor
Sang Cheol Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Icepipe Corp
Original Assignee
Icepipe Corp
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
Priority to KR1020100139222A priority Critical patent/KR101220521B1/en
Priority to KR10-2010-0139222 priority
Application filed by Icepipe Corp filed Critical Icepipe Corp
Priority to PCT/KR2011/007920 priority patent/WO2012091266A2/en
Publication of CA2802077A1 publication Critical patent/CA2802077A1/en
Abandoned legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/24Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • E01C11/26Permanently installed heating or blowing devices ; Mounting thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/30Geothermal collectors using underground reservoirs for accumulating working fluids or intermediate fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/40Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B23/00Machines, plant, or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • F25B23/006Machines, plant, 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-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
    • F28D15/02Heat-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
    • F28D15/04Heat-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-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
    • F28D15/02Heat-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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

Abstract

Provided are a geothermal exchanger including a capillary-type heat pipe, an apparatus for preventing icing on a road/bridge, and a geothermal cooling and heating apparatus. The geothermal exchanger includes: a heat exchange part disposed adjacent to the ground so as to absorb heat from the ground or discharge heat to the ground; and a capillary-type heat pipe for transferring heat, in which a working fluid is injected, one side of the heat pipe for transferring heat being disposed adjacent to the heat exchange part so as to transfer heat, and the other side thereof being buried underground. When the surface of the ground is warmer than below the ground, the heat pipe for transferring heat transfers heat from the heat exchange part to below the ground, thereby storing the heat. When the ground surface is cooler than below the ground, the heat pipe for transferring heat transfers the heat from below the ground to the heat exchange part. Thus, natural energy from the ground may be accumulated underground in the form of thermal energy so as to increase the available heat in the earth. Further, providing the capillary-type heat pipe, which has a wide heat-transfer area and high heat-transfer efficiency, enables a loss of energy to be minimized and the thermal energy efficiency of the earth to be improved. In addition, the capillary-type heat pipe may be used alone without an additional operational device, such as a pump, so as to easily store the thermal energy and enable the easy installation and repair/maintenance of the geothermal exchanger.

Description

Agent Ref 79763/00004 1 Geothermal Exchanger Including a Capillary-Type Heat Pipe, Apparatus for Preventing 2 Icing on a Road/Bridge, and Geothermal Cooling and Heating Apparatus 4 [Technical Field]

The present invention relates to a geothermal exchanger using a capillary-type heat 6 pipe and an apparatus for preventing icing on a road/bridge and a geothermal cooling and 7 heating apparatus using the same.

9 [Background Art]

Currently, the commonly used energy sources are mostly fossil fuel, such as coal, 11 petroleum, natural gas, etc., and nuclear fuel. However, the fossil fuel contaminates the 12 environment due to various pollutants generated during the combustion process, and the 13 nuclear fuel has the shortcomings of polluting the water quality and generating toxic substances 14 such as radioactive materials. Besides, these energy sources have limited reserves.

Consequently, there have been active efforts to develop new and renewable energy that can 16 substitute these energy sources.

17 The new and renewable energy can be infinitely obtained from the nature, such as wind, 18 solar heat, geothermal heat, air and the like, and can be also obtained from industrial waste 19 water.

Among these sorts of new and renewable energy, the geothermal heat is less affected 21 by external conditions than using the air, wind or solar heat as the energy source and thus 22 fluctuates little throughout a year, hence relatively more stable and useful.

23 However, conventional apparatuses using the geothermal heat have simply used the 24 difference of underground and over-ground temperatures based on the change in atmospheric 22315707.1 Agent Ref: 79763100004 1 temperature and thus could achieve a low energy efficiency and obtain a limited amount of 2 energy.

3 Accordingly, a hot water pipe or the like has been buried deep under the ground in 4 order to increase the amount of obtainable energy, but this has required additional installation of devices such as a high-performance pump, making the facility more complex and difficult to 6 maintain. Moreover, it has been difficult to install pipes and other devices deep under the ground.
7 In addition, there has been heat-loss while transferrin the geothermal heat from the 8 deep under the ground, thereby sacrificing the heat-transfer efficiency.

[Disclosure]

11 [Technical Problem) 12 The present invention provides a geothermal exchanger using a capillary-type heat 13 pipe and an apparatus for preventing icing on a road/bridge and a geothermal cooling and 14 heating apparatus using the same that can increase the amount of geothermal heat that can be used as an energy source and the energy efficiency.

16 The present invention also provides a geothermal exchanger using a capillary-type heat 17 pipe and an apparatus for preventing icing on a road/bridge and a geothermal cooling and 18 heating apparatus using the same that can be easily installed and maintained.

[Technical Solution) 21 An aspect of the present invention provides a geothermal exchanger including a 22 capillary-type heat pipe. The geothermal exchanger including a capillary-type heat pipe in 23 accordance with an aspect of the present invention includes: a heat exchange part installed 24 adjacently to a surface of the ground and configured to absorb heat from the surface of the 22315707.1 Agent Ref:. 79763/00004 1 ground or dissipate heat to the surface of the ground; and a heat-transferring heat pipe formed 2 in a capillary shape and having working fluid injected thereinto, the heat-transferring heat pipe 3 having one side thereof arranged to be adjacent to the heat exchange part so as to enable heat 4 transfer therebetween and having the other side thereof buried in underground. The heat-transferring heat pipe can transport the heat of the heat exchange part into the underground and 6 store the heat in the underground when the surface of the ground is heated more than the 7 underground, and the heat-transferring heat pipe can transport the heat of the underground to 8 the heat exchange part when the surface of the ground is cooled more than the underground.
9 The heat exchange part can include a heat-exchange heat pipe, which is formed in a capillary shape, has working fluid injected thereinto, and is coupled with the heat-transferring 11 heat pipe.

12 The heat-exchange heat pipe and the heat-transferring heat pipe can be formed with a 13 capillary-type heat pipe in an integrated fashion, and the integrated capillary-type heat pipe can 14 be formed to reciprocate between the surface of the ground and the underground.

The geothermal exchanger can also include a supplemental heat source configured to 16 transfer heat to the heat-transferring heat pipe.

17 Another aspect of the present invention provides an apparatus for preventing icing on a 18 road that includes the geothermal exchanger. The heat exchange part can be coupled with the 19 road so as to enable heat transfer therebetween in such a manner that heat of the road is absorbed into the underground or the heat of the underground is dissipated to the road.
21 The heat exchange part can include a capillary-type heat pipe buried in the road.

22 Yet another aspect of the present invention provides an apparatus for preventing icing 23 on a bridge that includes the geothermal exchanger. The heat exchange part can be coupled 24 with the bridge so as to enable heat transfer therebetween in such a manner that heat of the 22315707.1 Agent Ref; 79763/00004 1 bridge is absorbed into the underground or the heat of the underground is dissipated to the 2 bridge.

3 The heat exchange part can include a capillary-type heat pipe buried in a bridge deck.
4 The apparatus for preventing icing on a bridge can also include a heat-transferring member extended from the bridge to the surface of the ground that supports the bridge and 6 arranged adjacently to the heat exchange part and the heat-transferring heat pipe so as to 7 transfer heat between the heat exchange part and the heat-transferring heat pipe.

8 Still another aspect of the present invention provides a geothermal cooling and heating 9 apparatus that includes the geothermal exchanger. The heat exchange part can be coupled with an inside of an above-ground structure so as to enable heat transfer therebetween in such a 11 manner that heat of the inside of the above-ground structure is absorbed into the underground 12 or the heat of the underground is dissipated to the inside of the above-ground structure.

13 The above-ground structure can be lighted thereinto, and the heat exchange part can 14 include a capillary-type heat pipe buried in a lighted surface.

16 [Description of Drawings]

17 FIG. 1 and FIG. 2 illustrate a geothermal exchanger having a capillary-type heat pipe 18 and an apparatus for preventing icing on a road using the same in accordance with an 19 embodiment of the present invention.

FIG. 3 illustrates an apparatus for preventing icing on a bridge using the geothermal 21 exchanger having a capillary-type heat pipe in accordance with an embodiment of the present 22 invention.

23 FIG. 4 illustrates a geothermal cooling and heating apparatus using the geothermal 24 exchanger having a capillary-type heat pipe in accordance with an embodiment of the present 22315707.1 Agent Ret: 79763100004 1 invention.

2 FIG. 5 illustrates a geothermal cooling and heating apparatus using a geothermal 3 exchanger having a capillary-type heat pipe in accordance with another embodiment of the 4 present invention.

6 [Mode for Invention) 7 Hereinafter, some embodiments of the present invention will be described with 8 reference to the accompanying drawings.

9 FIG. 1 and FIG. 2 illustrate a geothermal exchanger having a capillary-type heat pipe and an apparatus for preventing icing on a road using the same in accordance with an 11 embodiment of the present invention.

12 The geothermal exchanger having a capillary-type heat pipe in accordance with an 13 embodiment of the present invention includes a heat exchange part 12, 14 and a heat-14 transferring heat pipe 20 and accumulates over-ground natural energy underground 1 in the form of thermal energy and re-uses the thermal energy accumulated underground 1.

16 Moreover, the apparatus for preventing icing on a road in accordance with the present 17 embodiment includes the geothermal exchanger having a capillary-type heat pipe so that icing 18 of a road 5 can be prevented during the winter season without any additional equipment.

19 The heat exchange part is a portion that connects the heat-transferring heat pipe 20 buried underground 1 to the surface of the ground so as to enable heat transfer therebetween, 21 and functions to transfer the thermal energy of a place having a higher temperature to a place 22 having a lower temperature. For this, the heat exchange part of the present embodiment is 23 installed adjacent to the surface of the ground to absorb the thermal energy of the surface of the 24 ground when the surface of the ground is heated up and transfer the thermal energy to the heat-22315707.1 Agent Ref: 79763/00004 1 transferring heat pipe 20 and to absorb the thermal energy from the heat-transferring heat pipe 2 20 when the surface of the ground is cooled down and dissipate the thermal energy to the 3 surface of the ground.

4 As shown in FIGS. 1 and 2, the heat exchange part of the present embodiment is coupled with the road 5 so as to enable heat transfer therebetween.
Specifically, the heat 6 exchange part includes a heat-exchange heat pipe 12 that is constituted with a capillary-type 7 heat pipe that can quickly transfer a large amount of heat, and the road 5 and the heat 8 exchange part can be coupled with each other so as to enable heat transfer therebetween by 9 burying the heat-exchange heat pipe 12 in the road 5. Accordingly, it becomes possible to transfer the thermal energy of the surface of the ground to the heat-transferring heat pipe 20 11 when the temperature of the road 5 becomes higher than the underground 1, like in the summer, 12 and it becomes possible to receive the thermal energy from the heat-transferring heat pipe 20 13 and dissipate the received thermal energy to the road 5 when the temperature of the road 5 14 becomes lower than the underground 1, like in the winter.

The heat-transferring heat pipe 20 is responsible for transporting the thermal energy 16 transferred to the heat exchange part to the underground 1 or re-transferring the thermal energy 17 stored in the underground 1 to the heat exchange part. For this, one side of the heat-transferring 18 heat pipe 20 of the present embodiment is arranged adjacent to the heat exchange part so as to 19 enable heat transfer therebetween, and the other side of the heat-transferring heat pipe 20 is extended to and buried in the underground 1 that stores the thermal energy.

21 Moreover, the heat-transferring heat pipe 20 of the present embodiment is constituted 22 with a capillary-type heat pipe, into which working fluid 23 is injected, so as to minimize heat 23 loss and quickly transfer a large amount of thermal energy. A
representative example used for 24 the heat-transferring heat pipe 20 can be a vibrating capillary-type heat pipe.

22315707,1 Agent Ref: 79763/00004 1 The vibrating capillary-type heat pipe has a structure in which the working fluid 23 and 2 air bubbles 24 are injected into a capillary 22 in a predetermined ratio and then an inside of the 3 capillary 22 is sealed from an outside. Accordingly, the vibrating capillary-type heat pipe has a 4 heat-transfer cycle in which the heat is mass transported in the form of latent heat by volume expansion and condensation of the air bubbles 24 and working fluid 23.

6 In a heat-transfer mechanism, as nucleate boiling occurs in a heat-absorption portion 7 by as much as the absorbed amount of heat, volume expansion occurs in the air bubbles 24 8 located in the heat-absorption portion. Here, since the capillary 22 maintains a fixed internal 9 volume, the air bubbles 24 located in a heat-dissipating portion condense by as much as the expanded volume of the air bubbles 24 located in the heat-absorption portion.
Accordingly, the 11 state of pressure equilibrium in the capillary 22 becomes broken, resulting in a flow 12 accompanied with vibrations of the working fluid 23 and the air bubbles 24 within the capillary22, 13 and thus heat-dissipation is carried out as the latent heat is transported by the rise and fall of 14 the temperature caused by the volume change of the air bubbles 24.

Here, the vibrating capillary-type heat pipe can include the capillary made of a metal, 16 such as copper, aluminum and the like, which have high thermal conductivity. Accordingly, heat 17 can be quickly conducted, and volume change of the air bubbles 24 injected therein can be 18 quickly resulted in.

19 Moreover, the heat pipe formed with the capillary 22 can have a large heat-transfer area compared to the volume and thus can absorb or dissipate a large amount of heat quickly.
21 Besides, there is no restriction on the direction of heat transfer, the heat pipe can carry out an 22 excellent heat transfer in every direction and can be arranged without restriction.

23 Here, both an open loop and a close loop are possible for a communication structure of 24 the vibrating capillary-type heat pipe. Moreover, if the vibrating capillary-type heat pipe is 22315707.1 Agent Ref: 79763/00004 1 provided in plurality, all or some of the plurality of vibrating capillary-type heat pipes can be 2 communicated with neighboring vibrating capillary-type heat pipes.
Accordingly, the plurality of 3 vibrating capillary-type heat pipes can have an entirely open or close loop shape according to 4 design requirement.

As shown in FIG. 1 and FIG. 2, the heat-exchange heat pipe 12 and the heat-6 transferring heat pipe 20 can be formed with an integrated capillary-type heat pipe. Specifically, 7 the integrated capillary-type heat pipe can be formed to reciprocate between the surface of the 8 ground and the underground 1. Here, a portion of the capillary-type heat pipe that is buried 9 adjacent to the surface of the ground becomes the heat-exchange heat pipe 12, and a portion of the capillary-type heat pipe that is buried deep in the underground 1 becomes the heat-11 transferring heat pipe 20.

12 Accordingly, when the temperature on the surface of the ground rises, the portion of the 13 capillary-type heat pipe buried adjacent to the road 5 becomes the heat-absorption portion, and 14 the portion of the capillary-type heat pipe buried deep in the underground 1 becomes the heat-dissipating portion, making it possible to dissipate the heat of the road 5 to the underground 1 16 so as to transport and store the thermal energy of the road 5 into the underground.

17 In other words, the temperature of the road 5 becomes much higher than an 18 atmospheric temperature in the summer, having a large amount of thermal energy accumulated 19 in the road 5. Here, the heat-exchange heat pipe 12 constituted with the capillary-type heat pipe can use its large heat-transfer area to absorb the large amount of thermal energy held by the 21 road 5, and the heat-transferring heat pipe 20 connected with the heat-exchange heat pipe 12 22 can quickly transfer the absorbed thermal energy to the underground 1.
Accordingly, the thermal 23 energy can be continuously accumulated in the underground 1 during the summer. That is, a 24 land is used as a thermal-energy-storing heat accumulator, increasing the amount of available 22315707.1 Agent Ref: 79763/00004 1 thermal heat.

2 Here, the present embodiment can further include a supplemental heat source that 3 transfers heat to the heat-transferring heat pipe, in order to increase the thermal energy stored 4 in the underground 1. Furthermore, natural energy can be converted to thermal energy and used as a supplemental heat source 30. That is, with various known methods, such as 6 converting the sunlight to thermal energy by use of a solar cell or converting kinetic energy, 7 such as wind power, to thermal energy, the natural energy can be converted to thermal energy 8 and used as the supplemental heat source.

9 As shown in FIG. 2, in the present embodiment, the sunlight is converted to thermal energy using a solar cell, and then the thermal energy is transferred to and stored in a place 11 adjacent to the heat-transferring heat pipe 20 by use of a heat pipe 32 that transports the 12 thermal energy.

13 On the other hand, when the temperature on the surface of the ground is descended, 14 the portion of the capillary-type heat pipe that is buried adjacent to the road 5 becomes the heat-dissipating portion, and the portion of the capillary-type heat pipe that is buried deep in the 16 ground 1 become the heat-absorption portion, and thus the thermal energy in the underground 1 17 can be used by dissipating the heat stored in the underground 1 to the road 5.

18 In other words, when the road 5 is frozen in the winter, the heat-exchange heat pipe 12 19 can dissipate the thermal energy supplied from the heat-transferring heat pipe 20 to the road 5 to increase the temperature of the road 5 and prevent icing. Here, the heat-transferring heat 21 pipe 20 functions to continuously pump up the thermal energy that has been stored and 22 accumulated in the underground 1 during the summer. As described above, the capillary-type 23 heat pipe has high heat-transfer efficiency due to its fast heat transfer, and thus the heat lost to 24 surroundings while the heat is transferred can be minimized, thereby increasing the energy 22315707.1 Agent Ref; 79763/00004 1 efficiency of the thermal heat transferred to the surface of the ground.

2 In summary, the geothermal exchanger of the present embodiment can store the 3 thermal energy in the underground 1 and use the thermal energy when necessary by use of the 4 capillary-type heat pipe that has a superb heat-transfer property in both ways.

Particularly, as the thermal energy is stored and dissipated using the natural law of 6 thermal equilibrium, no additional operational device, such as a pump, is required. Accordingly, 7 the geothermal exchanger can be readily installed, maintained and repaired.

8 Moreover, as the land can be used as the heat accumulator that stores the thermal 9 energy by use of thermal resistance of the land, the amount of available thermal heat can be innovatively increased compared to the conventional geothermal exchanger that only uses the 11 difference in temperature between the surface of the ground and the underground 1 caused 12 simply by the change in atmospheric temperature.

13 Meanwhile, the geothermal exchanger of the present embodiment can be used as an 14 apparatus for preventing icing on a bridge.

FIG. 3 illustrates an apparatus for preventing icing on a bridge using the geothermal 16 exchanger having a capillary-type heat pipe in accordance with an embodiment of the present 17 invention.

18 As illustrated in FIG. 3, the apparatus for preventing icing on a bridge in accordance 19 with the present embodiment has a heat exchange part coupled with the bridge so as to enable heat transfer therebetween so that the heat of the bridge can be absorbed to the underground 1 21 or the heat of the underground 1 can be dissipated to the bridge.

22 Specifically, the heat exchange part includes the heat-exchange heat pipe 12 that is 23 constituted with the capillary-type heat pipe that can quickly transfer a large amount of heat, and 24 the bridge and the heat exchange part can be coupled to each other so as to enable heat 22315707.1 Agent Ref. 79763100004 1 transfer therebetween by buying the heat-exchange heat pipe 12 in a bridge deck 6. In addition, 2 the heat-transferring heat pipe 20, which is constituted with the capillary-type heat pipe, is 3 buried in the underground 1 below the surface of the ground that supports the bridge.

4 Accordingly, in the case that the temperature of the bridge is higher than that of the underground 1, like in the summer, the thermal energy of the bridge can be absorbed into the 6 heat-exchange heat pipe 12 and then transferred to the heat-transferring heat pipe 20 for 7 storage in the underground 1. On the other hand, in the case that the temperature of the bridge 8 is lower than that of the underground 1, like in the winter, the thermal energy can be transferred 9 from the underground I and dissipated to the bridge. Therefore, the thermal energy that has been stored during the summer can be supplied to the heat-exchange heat pipe 12 and 11 dissipated to the bridge in the winter to preventing icing on the bridge.

12 Here, as shown in FIG. 3 (a), in order to enhance the heat-transfer efficiency between 13 the heat-transferring heat pipe 20 buried in the underground 1 and the heat-exchange heat pipe 14 12 buried in the bridge, the apparatus for preventing icing on a bridge in accordance with the present embodiment can further include a heat-transferring member 15, which is extended from 16 the bridge to the surface of the ground that supports the bridge and arranged adjacently to the 17 heat exchange part and the heat-transferring heat pipe 20.

18 In the present embodiment, a wick-type heat pipe can be used for the heat-transferring 19 member 15 so as to quickly transfer a large amount of heat between the heat-exchange heat pipe 12 and the heat-transferring heat pipe 20.

21 The wick-type heat pipe is constituted with a sealed pipe, into which the working fluid is 22 injected, a wick, through which the working fluid moves, formed on an inner wall of the pipe, and 23 a vapor moving space, in which vaporized working fluid moves within the pipe. In describing the 24 functions specifically, the working fluid vaporized at which the heat is transferred moves through 22315707.1 Agent Ref: 79763/00004 1 the vapor moving space to a heat-transfer portion, which transfers the heat to an outside. Then, 2 the vaporized working fluid that has moved to the heat-transfer portion becomes condensed and 3 transfers evaporation heat to the heat-transfer portion. The condensed working fluid flows back 4 to an original position through the wick. Accordingly, a heat-transfer cycle of transferring the heat to the heat-transfer portion is completed.

6 The wick-type heat pipe having the above-described heat-transfer structure has a 7 relatively larger diameter of tube than the capillary-type heat pipe and can have a large quantity 8 of working fluid injected thereinto. Accordingly, the thermal energy can be quickly transferred to 9 minimize heat loss so as not to have the heat from the bridge or the underground 1 accumulated.

11 In addition, as shown in FIG. 3 (b), it is possible that a heat-transferring member 16 of 12 the present embodiment is constituted with a capillary-type heat pipe and is formed in an 13 integrated fashion with the heat-transferring heat pipe 20.

14 Specifically, the capillary-type heat pipe can cross the bridge to be connected with the surface of the ground, and end parts of the capillary-type heat pipe can be buried deep into the 16 underground. Here, a portion of the capillary-type heat pipe that crosses the bridge and is 17 adjacent to the heat-exchange heat pipe 12 becomes the heat-transferring member 16, and the 18 end parts of the capillary-type heat pipe that are buried in the underground become the heat-19 transferring heat pipe 20. Accordingly, the apparatus for preventing icing on a bridge in accordance with the present embodiment can be readily installed by structuring the heat-21 transferring member 16 and the heat-transferring heat pipe 20 in an integrated fashion.

22 Meanwhile, the geothermal exchanger in accordance with the present embodiment can 23 be also used as a geothermal cooling and heating apparatus.

24 FIG. 4 illustrates a geothermal cooling and heating apparatus using the geothermal 22315707,1 Agent Ref: 79763/00004 1 exchanger having a capillary-type heat pipe in accordance with an embodiment of the present 2 invention.

3 As illustrated in FIG. 4, the geothermal cooling and heating apparatus in accordance 4 with the present embodiment has a heat exchange part coupled with an inside of an above-ground structure so as to enable heat transfer therebetween, thereby making it possible to 6 absorb heat of the inside of the above-ground structure to the underground 1 or dissipate the 7 heat of the underground 1 to the inside of the above-ground structure.

8 Specifically, in the present embodiment, the geothermal exchanger is used as the 9 geothermal cooling and heating apparatus that controls the temperature of a greenhouse 40.

The heat exchange part constituted with the heat-exchange heat pipe 12 is buried in the ground 11 7 of the greenhouse 40 so as to enable heat transfer with an inside of the greenhouse 40, and 12 the heat-transferring heat pipe 20 connected with the heat-exchange heat pipe 12 is buried in 13 the underground 1.

14 Accordingly, in the summer, the thermal energy can be absorbed by the heat-exchange heat pipe 12 inside the heated greenhouse 40 and then can be stored in the underground 1 16 through the heat-transferring heat pipe 20. That is, the temperature inside the greenhouse 40 in 17 the summer can be lowered by taking the thermal energy away from the inside of the 18 greenhouse 40. Here, in the case that lighting is possible into the above-ground structure, the 19 heat-exchange heat pipe 12 can be arranged to be buried in a lighted surface so as to further increase the thermal energy that is stored in the underground 1.

21 In addition, in the winter, the thermal energy stored in the underground 1 during the 22 summer can be supplied to the heat-exchange heat pipe 12 from the heat-transferring heat pipe 23 20 and dissipated to the inside of the greenhouse 40 to heat the greenhouse 40.

24 FIG. 5 illustrates a geothermal cooling and heating apparatus using a geothermal 22315707.1 Agent Ref: 79763/00004 1 exchanger having a capillary-type heat pipe in accordance with another embodiment of the 2 present invention.

3 In the present embodiment, the geothermal exchanger is used as a geothermal cooling 4 and heating apparatus that controls the temperature of a house 50.

As illustrated in FIG. 5, a heat exchange part of the present embodiment includes a 6 geothermal boiler 14 that carries out cooling and heating of the house 50.
The geothermal boiler 7 14 includes a heat pump, which dissipates heat into the house 50 or absorbs heat of an inside 8 of the house 50, and a heat storage tank, which accumulates heat.

9 The geothermal boiler 14 is configured to enable heat transfer with the heat-transferring heat pipe 20 that is buried in the underground 1. Specifically, a water pipe 17 that is connected 11 with the geothermal boiler 14 can be arranged adjacently to the heat-transferring heat pipe 20 to 12 transfer the thermal energy between the geothermal boiler 14 and the heat-transferring heat 13 pipe 20. Alternatively, the above-described wick-type heat pipe can be arranged adjacently in 14 between the geothermal boiler 14 and the heat-transferring heat pipe 20.

Accordingly, the geothermal boiler 14 can absorb the thermal energy inside the house 16 50 and stores the thermal energy in the underground 1 to lower the temperature inside the 17 house 50 and carry out cooling in the summer, and can dissipate the thermal energy stored in 18 the underground 1 into the house 50 to carry out heating.

19 While the present invention has been described with reference to certain embodiments, the embodiments are for illustrative purposes only and shall not limit the invention. It is to be 21 appreciated that those skilled in the art can change or modify the embodiments without 22 departing from the scope and spirit of the invention.

23 It shall be also appreciated that a very large number of embodiments other than those 24 described herein are possible within the scope of the present invention, which shall be defined 22315707.1 Agent Ref. 79763/00004 1 by the claims appended below.

3 [Industrial Applicability]

4 According to the present invention, the amount of available geothermal heat can be increased by accumulating the natural energy on the surface of the ground in the underground 6 in the form of geothermal energy.

7 Moreover, energy loss can be minimized and energy efficiency of geothermal heat can 8 be enhanced by using the capillary-type heat pipe that has a wide heat-transfer area and high 9 heat-transfer efficiency.

Furthermore, the geothermal exchanger can be readily installed, maintained and 11 repaired by storing and using the geothermal energy by use of the capillary-type heat pipe alone 12 without an additional operational device, such as a pump.

22315707.1

Claims (11)

  1. [CLAIMS) [Claim 11 A geothermal exchanger including a capillary-type heat pipe, comprising:

    a heat exchange part installed adjacently to a surface of the ground and configured to absorb heat from the surface of the ground or dissipate heat to the surface of the ground; and a heat-transferring heat pipe formed in a capillary shape and having working fluid injected thereinto, the heat-transferring heat pipe having one side thereof arranged to be adjacent to the heat exchange part so as to enable heat transfer therebetween and having the other side thereof buried in underground, wherein the heat-transferring heat pipe transports the heat of the heat exchange part into the underground and stores the heat in the underground when the surface of the ground is heated more than the underground, and the heat-transferring heat pipe transports the heat of the underground to the heat exchange part when the surface of the ground is cooled more than the underground.
  2. [Claim 21 The geothermal exchanger of claim 1, wherein the heat exchange part comprises a heat-exchange heat pipe formed in a capillary shape and having working fluid injected thereinto, the heat-exchange heat pipe being coupled with the heat-transferring heat pipe.
  3. [Claim 31 The geothermal exchanger of claim 2, wherein the heat-exchange heat pipe and the heat-transferring heat pipe are formed with a capillary-type heat pipe in an integrated fashion, and wherein the integrated capillary-type heat pipe is formed to reciprocate between the surface of the ground and the underground.
  4. [Claim 4]

    The geothermal exchanger of claim 1, further comprising a supplemental heat source configured to transfer heat to the heat-transferring heat pipe.
  5. [Claim 5]

    An apparatus for preventing icing on a road, comprising the geothermal exchanger in accordance with any of claim 1 to 4, wherein the heat exchange part is coupled with the road so as to enable heat transfer therebetween in such a manner that heat of the road is absorbed into the underground or the heat of the underground is dissipated to the road.
  6. [Claim 6]

    The apparatus of claim 5, wherein the heat exchange part comprises a capillary-type heat pipe buried in the road.
  7. [Claim 7]

    An apparatus for preventing icing on a bridge, comprising the geothermal exchanger in accordance with any of claim 1 to 4, wherein the heat exchange part is coupled with the bridge so as to enable heat transfer therebetween in such a manner that heat of the bridge is absorbed into the underground or the heat of the underground is dissipated to the bridge.
  8. [Claim 8]

    The apparatus of claim 7, wherein the heat exchange part comprises a capillary-type heat pipe buried in a bridge deck.
  9. [Claim 9]

    The apparatus of claim 7, further comprising a heat-transferring member extended from the bridge to the surface of the ground that supports the bridge and arranged adjacently to the heat exchange part and the heat-transferring heat pipe so as to transfer heat between the heat exchange part and the heat-transferring heat pipe.
  10. [Claim 10]

    A geothermal cooling and heating apparatus comprising the geothermal exchanger in accordance with any of claim 1 to 4, wherein the heat exchange part is coupled with an inside of an above-ground structure so as to enable heat transfer therebetween in such a manner that heat of the inside of the above-ground structure is absorbed into the underground or the heat of the underground is dissipated to the inside of the above-ground structure.
  11. [Claim 11]

    The apparatus of claim 10, wherein the above-ground structure can be lighted thereinto, and wherein the heat exchange part comprises a capillary-type heat pipe buried in a lighted surface.
CA2802077A 2010-12-30 2011-10-24 Geothermal exchanger including a capillary-type heat pipe, apparatus for preventing icing on a road/bridge, and geothermal cooling and heating apparatus Abandoned CA2802077A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020100139222A KR101220521B1 (en) 2010-12-30 2010-12-30 Apparatus for earth heat exchange using capillary-type heat pipe, apparatus for preventing road-freezing and bridge-freezing, and apparatus for heating and cooling using earth heat exchange
KR10-2010-0139222 2010-12-30
PCT/KR2011/007920 WO2012091266A2 (en) 2010-12-30 2011-10-24 Geothermal exchanger including a capillary-type heat pipe, apparatus for preventing icing on a road/bridge, and geothermal cooling and heating apparatus

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CA2802077A1 true CA2802077A1 (en) 2012-07-05

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US9188086B2 (en) 2008-01-07 2015-11-17 Mcalister Technologies, Llc Coupled thermochemical reactors and engines, and associated systems and methods
US9206045B2 (en) 2010-02-13 2015-12-08 Mcalister Technologies, Llc Reactor vessels with transmissive surfaces for producing hydrogen-based fuels and structural elements, and associated systems and methods
US8441361B2 (en) 2010-02-13 2013-05-14 Mcallister Technologies, Llc Methods and apparatuses for detection of properties of fluid conveyance systems
US8911703B2 (en) 2011-08-12 2014-12-16 Mcalister Technologies, Llc Reducing and/or harvesting drag energy from transport vehicles, including for chemical reactors, and associated systems and methods
US8734546B2 (en) 2011-08-12 2014-05-27 Mcalister Technologies, Llc Geothermal energization of a non-combustion chemical reactor and associated systems and methods
WO2013025650A1 (en) 2011-08-12 2013-02-21 Mcalister Technologies, Llc Mobile transport platforms for producing hydrogen and structural materials and associated systems and methods
WO2013025655A2 (en) 2011-08-12 2013-02-21 Mcalister Technologies, Llc Systems and methods for providing supplemental aqueous thermal energy
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WO2013025644A1 (en) 2011-08-12 2013-02-21 Mcalister Technologies, Llc Systems and methods for extracting and processing gases from submerged sources
WO2013025659A1 (en) 2011-08-12 2013-02-21 Mcalister Technologies, Llc Reducing and/or harvesting drag energy from transport vehicles, includings for chemical reactors, and associated systems and methods
WO2014124463A1 (en) * 2013-02-11 2014-08-14 Mcalister Technologies, Llc Geothermal energization of a non-combustion chemical reactor and associated systems and methods
WO2014160301A1 (en) 2013-03-14 2014-10-02 Mcalister Technologies, Llc Method and apparatus for generating hydrogen from metal
CN103604253A (en) * 2013-11-28 2014-02-26 青岛理工大学 Capillary tube seawater source heat pump system used for seawater breeding
CN104596122A (en) * 2015-01-27 2015-05-06 江苏中圣压力容器装备制造有限公司 Method for preventing and controlling freeze-expanded damage to water-containing subgrade in cold region and bunched low-temperature heat pipe
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