Abstract: A geothermal heat exchanging system including a heat exchanging subsystem installed above the surface of Earth, and one or more coaxial-flow heat exchanging structures installed in the Earth. The coaxial-flow heat exchanging structures installed in the Earth, facilitate the transfer of heat energy in the aqueous-based heat transfer fluid, between the aqueous-based heat transfer fluid and material beneath the surface of the Earth. Each coaxial-flow heat exchanging structure includes an inner tube section, a thermally conductive outer tube section, and outer flow channel between the inner tube section and the outer tube section. A turbulence generating structure is disposed along a portion of the length of the outer flow channel so as to introduce turbulence into the flow of the aqueous-based heat transfer fluid flowing along the outer flow channel, thereby improving the transfer of heat energy between the aqueous-based heat transfer fluid and the Earth along the length of the outer flow channel.

Abstract: A double-pipe geothermal water circulating apparatus including an outer pipe having a geothermal water supplying strainer for infiltrating geothermal water from an aquifer and a geothermal water returning strainer for returning used geothermal water to the aquifer, a thermal insulation inner pipe composed of a thermal insulator that forms a flow channel with the outer pipe, a pump for pumping the geothermal water from the thermal insulation inner pipe, a heat source supplying force feed pipe for force-feeding pumped geothermal water to an heat exchanger and a heat source reusing pipe connected to the flow channel for returning the used geothermal water to the aquifer. Also, the double-pipe geothermal water circulating apparatus is provided therein with the flow channel from the geothermal water returning strainer to the geothermal water supplying strainer that is not separated, whereby geothermal water can flow therethrough.

Abstract: A coaxial-flow heat transfer system for installation in a geological environment and facilitating the transfer of heat energy between an external heat energy producing system and the geological environment. In the coaxial-flow heat transfer system, aqueous-based heat transfer fluid is pumped through the external heat energy exchanging system so as to transfer heat between the aqueous-based heat transfer fluid and the external heat energy exchanging system. The coaxial-flow heat transfer system comprises a coaxial-flow heat transfer structure for installation within the geological environment and having a proximal end and a distal end for exchanging heat between a source of fluid at a first temperature and a geological environment at a second temperature. The coaxial-flow heat transfer structure comprises a thermally conductive outer tube section, and an inner tube section having an inner flow channel and being coaxially arranged within the outer tube section.

Abstract: A coaxial-flow heat transfer system installed in a geological environment and facilitating the transfer of heat energy between an external heat energy exchanging system and the geological environment. The coaxial-flow heat transfer system includes aqueous-based heat transfer fluid that is pumped through the external heat energy exchanging system so as to transfer heat between the aqueous-based heat transfer fluid and the external heat energy exchanging system. A coaxial-flow heat transfer structure is installed within the geological environment and has a proximal end and a distal end for exchanging heat between the source of aqueous-based heat transfer fluid at a first temperature and a geological environment at a second temperature. The coaxial-flow heat transfer structure comprises a thermally conductive outer tube section, and an inner tube section having an inner flow channel and being coaxially arranged within the outer tube section.

Abstract: The invention relates to a collector (1), designed to be connected to a heat pump, which includes a number of tubes (2), which are at least mainly parallel to each other, which in a meander-like way in pairs are connected to each other by 180° bends (3), alternately located at the one or the other collector end, and also mechanism designed to fix the mutual positions of the tubes. According to the invention, the bends (3) are, when they will be applied to the tubes, designed as 90° bend pairs, one of the 90° bends forming half a 180° bend of one bend and the other of the 90° bends forming half a 180° bend of an adjacent bend, and the fixation mechanism are designed as the 90° bends (3), connected by the connection elements (6), which at least partially include the bends and aeration channels (13), which connect them.

Abstract: A plant for tempering a building, including an energy storage unit formed by ground heat exchangers coupled in parallel and each including a heat insulated leg and a non-insulated leg in thermal contact with surrounding soil. The heat exchangers are included in a circulating circuit for a circulation fluid which includes a circulation pump and room temperature keeping devices. The energy storage unit has a continuously varying temperature in a depth direction from a cold end to a warm end. The flow direction in the ground heat exchangers is controlled by a reversing valve such that for a warm keeping function, circulation fluid is received from the warm end and for a cool keeping function, circulation fluid is received from the cold end.

Abstract: A temperature equalization system comprised of heat equalizer and fluid transmission duct disposed in a heat carrier existing in solid or liquid state in the nature where presents comparatively larger and more reliable heat carrying capacity; the fluid passes through the installation to regulate for temperature equalization, and flows back to the installation disposed in the natural carrier of heat for the installation providing good heat conduction with the natural heat carrier to provide the function of temperature equalization regulating on the backflow.

Abstract: An in-ground geothermal heating and cooling system for a building is provided. The system can comprise a buried ground source heat pump, a heat exchanger, and a ground loop circuit buried to a depth below the regional frost line. The system can also comprise a buried ground source heat pump buried inside a building to be heated. The system can also comprise an in-building heat exchanger disposed in a building, and an evaporative loop running from the ground source heat pump to the in-building heat exchanger. A method for installing such an in-ground geothermal heating and cooling system is also provided.

Abstract: A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by the sonic drill head to drill the borehole, pumping fluid into the casing and up to earth surface in an annular space in the borehole so that drilled material flows to the earth surface, lowering a heat exchange pipe loop down into the casing, introducing grout into the casing around the heat exchange pipe loop, and extracting the casing from the borehole.

Abstract: A snow melting panel has a piping arrangement that includes straight pipe lines and U-shaped bend sections is provided. The panel can be sized such that the parallel length of the straight pipe lines is 300 to 5000 mm, and the perpendicular span of the straight pipe lines is 100 to 4000 mm. The piping arrangement may have a hot-dip galvanized layer or a highly corrosion resistant galvanized layer formed or provided only on the outer surface of the piping arrangement. For example, the gap between adjacent pipes in the straight pipe lines is 100 to 300 mm. In addition, the straight pipe lines and the bend sections can be made from a single long pipe. The piping arrangement may be made from a steel pipe with a silicon content of less than 0.05 wt %, or not less than 0.15 wt % and not more than 0.20 wt %.

Abstract: A method and apparatus for heating a portion of a subsea structure is provided. The method includes pumping a fluid through a length of tubing such that the temperature of the fluid increases. The temperature increase of the fluid is created by friction in the tubing, and may be also be created by at least one pressure reducing device such as an orifice, pressure reducing valve, or relief valve. A subsea structure may be heated by transferring heat from fluid circulating in a closed loop configuration or by direct application of fluid to the subsea structure using a nozzle. A remotely operated vehicle may be utilized to transport some or all of the equipment necessary, including pumps, tubing, heat exchangers, nozzles and tanks. The remotely operated vehicle provides power to the pumps used for circulating fluid through the tubing.

Abstract: A sealed well direct expansion geothermal heat exchange unit, whose sealed well can be placed in ground and/or in water, consisting of a conventional direct expansion, or other heat pump, system wherein the exterior refrigerant heat exchange lines are placed within an insulated and sealed container, which container is supplied with a circulating heat conductive liquid from and to a sub-surface sealed well encasement, which container liquid may be supplemented with heat from a solar heating system, and which unit's hot refrigerant vapor line may be supplementary cooled by means of condensate water evaporative cooling, as well as a means to provide any direct expansion, and any closed-loop water-source, geothermal heat pump system with an optional solar heating supplement in the heating mode, and with an optional water-cooled vapor line supplement in the cooling mode.

Abstract: A method and apparatus for adding rigidity and weight to the piping used in geothermal wells for ground-source heat pumps enhances insertion of the piping into the wells. The weight used must be approved by appropriate organizations such as the DNR, NSF, and/or EPA, or similar, for contact with the ground water. Concrete and coated iron or steel are examples of such weights. A system for assembling the pipes, weight, and a tremie pipe for insertion is disclosed. The weighting system may also help maintain straightness in the geothermal piping for ease of inserting the piping into the vertical well.

Abstract: A cooling water intake system is configured to minimize entrainment, impingement and thermal plumes associated with the operation of onshore industrial facilities, such as a power plant, and includes a delivery system guiding ground waters from under the sand bottom of the water reservoir including oceans, seas, lakes and rivers to the industrial facilities.

Abstract: A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by the sonic drill head to drill the borehole, pumping fluid into the casing and up to earth surface in an annular space in the borehole so that drilled material flows to the earth surface, lowering a heat exchange pipe loop having a lowermost U/bend member down into the casing, introducing grout into the casing around the heat exchange pipe loop, and extracting the casing from the borehole.

Abstract: A thermodynamically efficient garment for cooling and/or heating a human body. The thermodynamic efficiency is provided in part by targeting the heat exchange capabilities of the garment to specific areas and/or structures of the human body. The heat exchange garment includes heat exchange zones and one or more non-heat exchange zones, where the heat exchange zones are configured to correspond to one or more high density tissue areas of the human body when the garment is worn. A system including the garment can be used to exchange heat with the adjacent HD tissue areas under the control of a feedback control system. Sensed physiological parameters received by the feedback control system can be used to adjust the characteristics of heat exchange fluid moving within the heat exchange garment.

Abstract: A geothermal accumulator and a air-conditioning system using the geothermal accumulator, said geothermal accumulator includes a well pipe and a heat-accumulating pipe inserted within the well pipe coaxially, the lower portion and the upper portion of the well pipe are provided with inlet holes and outlet holes for underground water respectively, said heat-accumulating pipe is provided with a water-collecting chamber, a diffluent chamber, a heat-exchanging chamber and a water-accumulating chamber from the bottom up in sequence, the heat-exchanging chamber is provided with a plurality of axially disposed heat-exchanging pipes communicating with the diffluent chamber and water-accumulating chamber respectively, and a plurality of baffles attached to the outside of the heat-exchanging pipes, gap exists between the baffles and the heat-exchanging pipes, the upper portion of the heat-exchanging chamber is connected with a returning pipe, and the lower portion is connected with a discharging pipe, water inlet holes

Abstract: A playground structure 201 is provided herein which comprises at least one component 31 having a playing surface 41 thereon, and a heat exchange system adapted to modify the temperature of the playing surface. The heat exchange system may comprise a flow channel 35 disposed in the structure adjacent to the playing surface for the efficient regulation of the surface temperature thereof, a coolant disposed in the flow channel, and a pump 233 or other means for circulating the coolant through the flow channel.

Abstract: A geothermal apparatus comprising a first pipe for receiving a heat exchange liquid therein and a second pipe for receiving the heat exchange liquid therein and having a web integrally connected to each of the first and second pipes, between such pipes for holding the second pipe at a predetermined distance from the first pipe. This pair of pipes, which are integrally connected, are installed in the ground in a hole or bore and then are connected to a heat exchanger having a fluid inlet connected to one of the pipes, a fluid outlet connected to the other of the pipes and the end of the pipes remote from the heat exchanger which are connected together.

Abstract: A method and apparatus for heating a portion of a subsea structure is provided. The method includes pumping a fluid through a length of tubing such that the temperature of the fluid increases. The temperature increase of the fluid is created by friction in the tubing, and may be also be created by at least one pressure reducing device such as an orifice, pressure reducing valve, or relief valve. A subsea structure may be heated by transferring heat from fluid circulating in a closed loop configuration or by direct application of fluid to the subsea structure using a nozzle. A remotely operated vehicle may be utilized to transport some or all of the equipment necessary, including pumps, tubing, heat exchangers, nozzles and tanks. The remotely operated vehicle provides power to the pumps used for circulating fluid through the tubing.

Abstract: A cold storage facility energy transfer system has a building which includes walls, a roof, and a floor. The building defines an enclosed space, which is to be cooled. A cooling system, which includes a compressor, a condenser, and an evaporator, is provided to cool the air within the enclosed space of the building. A ground water heat transfer mechanism reduces the operating temperature of the cooling system and raises the temperature of the building floor. A heat exchange mechanism draws heat from the compressor and the condenser to reduce operating temperature of the condenser and/or compressor. The heat exchange mechanism includes a mechanism associated with an area adjacent to the building floor for maintaining that area at a temperature so that underfloor icing is prohibited. An additional objective of the system reduces the temperature of the walls and roof of the building, reducing heat loss and improving the energy efficiency of the building.

Abstract: Wellbore heat loop systems, fillers for bores in the systems, and methods of the use of such systems; the systems in certain aspects having a heat loop wellbore in the earth having heat loop pipe extending down to one side of a bottom member and up therefrom on another side thereof, the bottom member in certain aspects having a body with first and second bores therethrough, the second bore sized and configured for securement thereat of an end of coil tubing; and, in certain aspects, filler material around the heat loop in the wellbore with a gel material mixed with the water.

Abstract: A system including active heat balance device and fluid transmission pipelines provided inside a solid, liquid, or gaseous thermo carrier with comparatively reliable thermo reservation capacity in the nature to reclaim heat from the fluid flowing in opposite direction by releasing heat to the fluid of relatively lower temperature flowing through the pipelines, or to absorb the heat to cool the fluid of relatively higher temperature flowing through the pipelines in the opposite direction.

Abstract: An air-conditioning system with thermal storage system for storing cooling capacity. The storage system comprises a quantity of fill material that preferably comprises water or similar liquid that is located in a cavity in the ground. The fill material may also include a bed of gravel with the pool of liquid filling the void spaces in the gravel. Sidewalls of the cavity are preferably supported primarily by the mechanical properties of the earth and the fill material. The lower boundary of the cavity is impermeable liner. A cover that blocks solar radiation and preferably with thermal insulation covers the top of the fill material. A chiller and a pump supply cooled liquid during night or other times of reduced electrical costs and liquid from the storage flows through a liquid-to-air heat exchanger during peak demand periods.

Abstract: A recirculated heated air mat system melts snow and ice from driveways or roofs, preventing its accumulation. The driveway sized, hollow mat of tough, pliable rubber, plastic is resistant to tearing and abrasion. A recirculating air electric heater provides heated air to the mat. The mat contains baffles directing heated air sinuously through the substantial portion of the mat, and an internal wall forms a cooled air return path along the upper end for recirculating the air to the heater. For a two-car garage, two pads are provided. The second pad may be identical to the first pad. Heated air is directed between the first and second mats and returned through the cooled air return path by separate removable ducts between heating air paths and cooled air return paths. The system may be modular, being assembled from identical mats and ducts. A large single mat for a roof is provided.

Abstract: A heating and cooling apparatus comprises a generally hollow heating and cooling tower body having a ceiling part for receiving solar heat and a columnar part for storing the solar heat received by the ceiling part. The columnar part has a lower portion adapted to be positioned in the ground for receiving a flow of cool air from the ground and a heat absorbing-and-radiating section for absorbing and radiating heat to heat the heating and cooling tower body using the stored solar heat and to cool the heating and cooling tower body using the flow cool air from the ground.

Abstract: The present invention relates to a device for the heat insulation of at least one underwater pipe (1) intended to be laid on the sea bed at great depth, comprising an insulating coating surrounding the latter and a protective envelope (3), characterized in that said insulating coating comprises a virtually incompressible liquid/solid phase change material (4) with a melting temperature T0 higher than that T2 of the medium surrounding the pipe in operation and less than that T1 of the effluents circulating in the pipe, and said material (4) preferably being impregnated in an absorbent matrix (2) surrounding the pipe (1), preferably nearest its outer surface, which protective envelope (3) is resistant and deformable and ensures a containment against and about said insulating coating.

Abstract: Systems and techniques for cooling a component within a housing using a composition of heat pipes. The housing contains a first heat pipe having a condenser section and an evaporator section; a plurality of secondary heat pipes, each having condenser and an evaporator sections, disposed in parallel within the housing with the evaporator sections of the secondary pipes near the condenser section of the first heat pipe; wherein the plurality of secondary heat pipes are adapted to absorb heat rejected from the condenser section of the first heat pipe for distribution from the condenser sections of the secondary heat pipes. A cooling method entails disposing the primary and secondary heat pipes within the housing; adapting the secondary pipes to absorb heat rejected from the primary pipe; and distributing the heat absorbed by the secondary heat pipes toward an end of the housing.

Abstract: A method for installing a heat exchange pipe loop in a borehole, the method in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill shoe on a lower end of the casing movable by the sonic drill head to drill the borehole, pumping fluid (e.g., water and drilling fluid) into the casing, out through a lower end of the casing, and up to earth surface in an annular space in the borehole so that drilled material flows to the earth surface, lowering a heat exchange pipe loop down into the casing, introducing grout into the casing around the heat exchange pipe loop, and extracting the casing from the borehole.

Abstract: Cooling/heating system of air conditioner including a duct having a first passage for drawing external air, and a second passage for drawing room air, the second passage having a part crossed with the first passage, a regenerative heat exchanger having first and second flow passages in the crossed part of the first and second passages for indirect heat exchange between the external air and the room air, a case connected to the first and second passages of the duct having first and second outlets for drawing/discharging external and room air, first and second fans for drawing in the external air and the room air into the case through the first and second passages, and discharging the external air and the room air through the first and second outlets, and first and second heat exchangers for heat exchange with the external air and the room air discharge through the first and second outlets, thereby preventing contamination and dried room air and reducing heat loss to permit cooling/heating even with small amoun

Abstract: A direct expansion geothermal heat exchange unit, which can be placed in sub-surface ground and/or water, consisting of at least one insulated refrigerant liquid/fluid line, with a liquid trap at the bottom of the liquid/fluid line, with at least one un-insulated refrigerant vapor/fluid line operatively connected to the insulated liquid/fluid line at a point above the liquid trap, where the un-insulated vapor/fluid line is in thermal contact with its adjacent sub-surface surrounding elements by means of a heat conductive fill material inserted as necessary to fill any void space, in any borehole or excavated area, between the vapor/fluid line and its respective adjacent sub-surface surroundings.

Abstract: A system and kit for forming an inexpensive protective plenum around pipes subject to freezing is disclosed. The system uses tubes formed of thin, flexible material, such as plastic tubes, to form the plenum. The plenum may be installed in sections with the sections joined with rings or collars at the joints. The rings and collars may also be formed of inexpensive materials, such as plastics. The tubes of the plenum may be formed from plastic sheets by joining the sheets at opposite edges to form seamed tubes. The edges may be joined by tapes or adhesives. The tubes may be formed around existing piping for ease of retrofit installation. The plenum may be connected to a source of hot air, such as the duct work of the hot air heating system of a dwelling.

Abstract: A direct expansion refrigerant-based heating and cooling system which includes a refrigerant pumping devise calibrated to ease or eliminate the pumping requirements placed upon the system's compressor unit when one or both of significant system height differentials between the compressor unit and the condensing unit are present and significant system refrigerant fluid transport line distances are present, or are desirable, such as in a deep well direct expansion system application.

Abstract: A well-water-type liquid cooling and heating resource system of the present invention, comprises a well, an energy lift device, a discharging pump and a suction pump sequentially connected by conduits. The well is separated into an upper portion and a lower portion by a baffle plate, and can supply constant temperature water at about 15° C. using as the low level cold and heat resources. The discharging tube and returning tube of the well is connected respectively with a liquid inlet tube and returning tube of the energy lift device. The suction pump is mounted at the lower portion of the well or on the baffle plate. The discharging tube of energy lift device, which is equipped with a discharge pump, is connected to a load such as an air conditioner. The load such as the air conditioner's returning tube is connected with the liquid inlet tube of a heat-exchanging pipeline coupling with the condenser of the energy lift device. The system costs lower and has no pollution.

Abstract: A system and method for structure heating, ventilation, and air conditioning (HVAC) that uses a heat exchanger to transfer heat between the structure and a subsurface storm water discharge chamber system is disclosed. Coils for heat management exchange are located in permanently collected runoff within a storm water management system beneath the frost line; the use of coils located within the retained runoff allows for improved heat exchange over coils placed within soil. Also described are a sensing device and feedback loop for HVAC control, to improve efficiency at ambient temperatures near the subsurface temperature.

Abstract: A system and kit for forming an inexpensive protective plenum around pipes and related equipment subject to freezing on a mobile home is disclosed. The system uses thin, flexible material, such as plastic tubes, to form a first protective plenum around the pipes and to connect enclosures around a water box forming a second protective plenum. The first plenum around the pipes may be installed in sections with the sections joined with rings or collars at the joints. The rings and collars may also be formed of inexpensive materials, such as plastics. The second plenum may be connected to the first plenum or to a tube. The first plenum and the tube may be connected to a source of hot air, such as the duct work of the hot air heating system of the home.

Abstract: Bottom members for a heat loop for an earth energy transfer system with a moving energy transfer fluid and heat loops with such a bottom member; the bottom member in one aspect including a body with a top surface and a bottom surface, the body configured for connection at a lower end of the heat loop, the bottom surface shaped to facilitate passage of the heat loop through a borehole extending down into the earth.

Abstract: A solar-based power generating system including an electrical alternator or generator for generating electrical power in which the alternator or generator is driven by a refrigerant circulating through a closed-loop heat transfer system including an evaporator exposed to solar energy and a condenser disposed within a large heat sink such as a body of water.

Abstract: A method, apparatus and system are provided for heating fluids using a waste heat recovery arrangement adapted for application to existing heat exchange systems that generate waste heat and/or heated exhaust gases. The method, apparatus and system utilize the heater control arrangement of the existing heat exchange system to control the heating of the fluid and a pumping arrangement, for example, a hydrokinetic pumping arrangement, to circulate the fluid to be heated from a location outdoors to the heat exchange system.

Abstract: A conditioner for the air in a structure which includes a gravel body beneath a building slab. The gravel is in thermal contact with the earth beneath the slab. The earth is a cold-sink which exchanges heat with the gravel body and thereby with air which is forced through the gravel.

Abstract: A conditioner for the air in a structure which includes a gravel body beneath a building slab. The gravel is in thermal contact with the earth beneath the slab. The earth is a cold-sink which exchanges heat with the gravel body and thereby with air which is forced through the gravel.

Abstract: A system for cooling a canister has first, second and third heat pipes. The first heat pipe has an evaporator and a condenser. The first heat pipe is mounted with its evaporator inside the canister and its condenser outside the canister. The second heat pipe has an evaporator conductively coupled to the condenser of the first heat pipe. The second heat pipe has a condenser. The third heat pipe has an evaporator conductively coupled to the condenser of the second heat pipe. The third heat pipe has a condenser with a plurality of fins on the condenser of the third heat pipe.

Abstract: A sub-surface direct expansion geothermal heat exchange unit, which can be placed in sub-surface ground and/or water, consisting of at least one smaller interior diameter refrigerant liquid/fluid transport line with an optional vertically oriented U bend at the bottom, operatively connected to at least one larger interior diameter refrigerant liquid/fluid transport line, with at least one refrigerant flow metering device, designed to the system's compressor's BTU design capacity, which is optionally accessible, installed in the liquid/fluid line at one of an above-surface location and at the sub-surface point near to where the liquid/fluid line connects with the vapor/fluid line, for use when the system is operating in the heating mode, together with a refrigerant flow metering device by-pass means so as to enable additional refrigerant fluid flow at least one of around and past the refrigerant metering device when the system is operating in the cooling mode.

Abstract: A floating heat exchanger for pond liquid and a method of evaporating water from the pond liquid that utilizes a mass of pipes that are floated at or just below the surface of the pond liquid with one end of the pipes being connected to an inlet manifold and the opposite end of the pipes connected to an outlet manifold. The pipes and manifolds are part of a heated closed loop heat transfer fluid system. The pond liquid is raised in temperature which facilitates the evaporation of water and the concentration of dissolved or suspended solids within the pond liquid.

Abstract: A heat exchanger for recollecting waste heat is provided, which is configured to circulate low-temperature water into inlet and outlet water circulation units and a heat exchanger tube, so as to be heat exchanged with the waste warm water. As a result, the number of configurational elements is minimized to thereby have a simple structure and thus the temperature of the low-temperature water is efficiently heightened irrespective of an installation place of the heat exchanger. The heat exchanger for recollecting waste heat includes inlet and outlet circulation water units which are formed to have a predetermined shape so that externally incoming low-temperature water is guided, supplied and discharged, and at least one heat exchanger tube which circulates the low-temperature water between the inlet and outlet circulation units.

Abstract: A system including active heat balance device and fluid transmission pipelines provided inside a solid, liquid, or gaseous thermo carrier with comparatively reliable thermo reservation capacity in the nature to reclaim heat from the fluid flowing in opposite direction by releasing heat to the fluid of relatively lower temperature flowing through the pipelines, or to absorb the heat to cool the fluid of relatively higher temperature flowing through the pipelines in the opposite direction.

Abstract: Bottom members for a heat loop for an earth energy transfer system with a moving energy transfer fluid and heat loops with such a bottom member; the bottom member in one aspect including a body with a top surface and a bottom surface, the body configured for connection at a lower end of the heat loop, the bottom surface shaped to facilitate passage of the heat loop through a borehole extending down into the earth.

Abstract: A system for cooling a canister has first, second and third heat pipes. The first heat pipe has an evaporator and a condenser. The first heat pipe is mounted with its evaporator inside the canister and its condenser outside the canister. The second heat pipe has an evaporator conductively coupled to the condenser of the first heat pipe. The second heat pipe has a condenser. The third heat pipe has an evaporator conductively coupled to the condenser of the second heat pipe. The third heat pipe has a condenser with a plurality of fins on the condenser of the third heat pipe.

Abstract: A thermally exposed centrally insulated geothermal heat exchange unit, which can be placed in ground and/or in water, consisting of at least one fluid supply line and at least one fluid return line, which lines are respectively separated by a thermal insulation material, but which lines are otherwise in thermal contact with their respective adjacent sub-surface earth and/or water surroundings by means of a heat conductive fill material inserted as necessary to fill any void space in the respective fluid transport line location areas situated between the thermal insulation material and the adjacent earth and/or water. When the unit is situated within a geothermal borehole, the thermal insulation material may have an expanded central area so as to decrease the amount of necessary heat conductive fill and so as to increase insulation efficiency.

Abstract: A liquid air conditioner of the geothermal energy type, includes a heat collector of the geothermal energy type, a heat exchanger, an energy lift device, a discharging pump, a returning pump, an air conditioner; said energy lift device consisting of a heating cycle and a heat exchanging cycle, said two cycles are sequentially connected through pipelines by a compressor, a condenser, a liquid reservoir, a drying filter, a restriction choke, an evaporator and a gas-liquid separator. A discharging tube of the heat exchanging cycle connects with the air conditioner. A returning tube of the air conditioner is connected to a liquid inlet tube of the heat exchanging cycle; a discharging tube of the heat exchanging cycle is connected to a returning tube; and a discharging tube of said heat exchanger is connected to a liquid inlet tube.