US20090025902A1 - Probe For Collecting Thermal Energy From The Ground For A Heat Pump, And A Collection Network Equipped With Such Probes - Google Patents

Probe For Collecting Thermal Energy From The Ground For A Heat Pump, And A Collection Network Equipped With Such Probes Download PDF

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Publication number
US20090025902A1
US20090025902A1 US11/919,085 US91908506A US2009025902A1 US 20090025902 A1 US20090025902 A1 US 20090025902A1 US 91908506 A US91908506 A US 91908506A US 2009025902 A1 US2009025902 A1 US 2009025902A1
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Prior art keywords
fluid
tube
tubes
probe
admission
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Abandoned
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US11/919,085
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English (en)
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Georges Favier
Michel Horps
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Hades
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Hades
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Assigned to HADES reassignment HADES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FAVIER, GEORGES, HORPS, MICHEL
Publication of US20090025902A1 publication Critical patent/US20090025902A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/17—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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 invention relates to a probe for collecting thermal energy from the ground for heat pumps, which pumps may be of the so-called “water/water” type or of the “gas/water” type.
  • Such equipment serves to collect the thermal energy available in the upper layers of the earth's crust, to concentrate said energy (raise it to a higher temperature), and to deliver it in said concentrated form to feed a heater circuit.
  • the core of the pump comprises a compressor and two heat exchangers connected respectively to the collection network and to the heat delivery network, together with a refrigerant fluid circuit comprising a condenser, an expander, and an evaporator.
  • the compressor concentrates the energy collected from the ground at the evaporator and delivers the energy for delivering to the heater circuit at the condenser.
  • a “collector probe” constituted by a circuit for a heat-conveying fluid, generally a liquid such as water having ethylene glycol added thereto, but which could equally well be a gaseous fluid.
  • This collector fluid or heat-conveying fluid is cooled by the evaporator of the heat pump, and is then sent into the ground in order to be heated by coming into contact with the surrounding medium, thereby extracting heat energy therefrom.
  • Each linear meter of the probe buried in the surrounding medium in question can thus bring a few joules of thermal energy to the heat pump when the circuit is in operation, and the fluid as heated in this way then returns to the heat pump which concentrates and delivers the thermal energy as collected in this way.
  • DE-A-103 27 602 describes a comparable technique in which a tube receives a CO 2 condensate that flows downwards in the form of a film along the walls of the tube to a deep zone at higher temperature where the CO 2 vaporizes and is returned under pressure by rising up the tube.
  • a “collector probe” is never directly connected to the compressor, the heat-conveying fluid that circulates therein being different from the refrigerant fluid of the circuit including the compressor.
  • Collector probes are generally implemented in the form of a tube constituting a loop connected at each of its ends to a respective terminal of the heat pump.
  • the nature of the tube, and most particularly the thermal conductivity of its wall, determines its heat exchange characteristics with the surrounding medium.
  • the diameter of the tube and the longer or shorter length of the loop determine the heat exchange area, and thus the mass of the surrounding medium from which heat is collected.
  • a first technique known as “horizontal” collection consists in burying the tube in the ground to a shallow depth (about 50 centimeters (cm) to 70 cm), causing it to follow a sinuous path so as to occupy a maximum area of ground in order to engage a sufficient mass of the surrounding medium.
  • said technique requires the ground to be stripped over a large extent, or else it requires trenches to be dug, with various constraints that stem therefrom: earth-moving costs; impossibility of placing the collection network under a house; and restrictions on how the ground can be used after the tube has been buried, for example no possibility of planting trees therein.
  • a second technique known as “vertical” collection consists in drilling a vertical borehole to a depth that may be as much as 100 meters (m), and then burying over the entire depth one or more looped tubes. Given the depth that is to be reached, this technique requires a borehole of relatively large diameter, of the order of 200 millimeters (mm), thus requiring specialist equipment that is heavy and bulky in use. It can indeed be deployed from a small area of ground, but it suffers from other drawbacks: cost and duration of drilling; poorly-controlled heat exchange; the medium is involved only in the form of a single cylindrical mass surrounding the borehole.
  • U.S. Pat. No. 5,339,890 describes a “collector probe” embodied in the form of a flexible tubular element provided at one of its ends with both the fluid inlet and the fluid outlet, and in which the other end is a free end. That configuration enables the tubular element to be inserted by means of its free portion into a gallery that opens out to the surface via a single point.
  • the buriable tubular element is strong enough to be capable of being pushed along said gallery over its entire length from only one of its ends.
  • One of the objects of the invention is to propose a collector probe, which probe is capable specifically of being optimized from the point of view of heat exchange effectiveness compared with previously-proposed solutions.
  • the starting point of the invention lies in noticing the importance of controlling the flow conditions by a particular configuration of the respective inside surfaces of the fluid return tube and of the fluid admission tube, to obtain a noticeable increase in thermal efficiency.
  • the probe proposed by the invention is a probe of the type known in U.S. Pat. No. 5,339,890, that is to say comprising a circuit for circulating a heat-conveying fluid, the circuit having a fluid inlet and a fluid outlet suitable for being connected to respective terminals of a heat pump.
  • the circuit comprises at least two tubes extending in parallel, with a fluid admission tube connected to the fluid inlet and a fluid return tube connected to the fluid outlet.
  • the fluid admission and return tubes are in communication with each other at their distal ends, and they are made with a wall in common over their entire length, thus forming a single tubular element for burying having a proximal end with the fluid inlet and outlet, and a distal end that is free.
  • the inside surface of the wall of the fluid return tube is provided with portions in relief suitable for creating turbulence in the fluid flowing in said tube, and the inside surface of the wall of the fluid admission tube is a smooth surface suitable for encouraging laminar flow of the fluid flowing in said tube.
  • the portions in relief in the fluid return tube provide a return flow that is slow and turbulent, encouraging heat exchange with the surrounding medium, unlike the smooth surface of the admission tube that, on the contrary, encourages a fast flow minimizing heat losses.
  • U.S. Pat. No. 5,339,890 does not describe any configuration of a probe of this type: the only portions in relief that are present are to be found on the outside surface of the fluid tube, and therefore have no effect on the flow conditions of the fluid circulating inside that tube.
  • that document is of the opinion (column 5, lines 44 to 50) that “there is no need for spacers or fins to control annular spacing between the internal tube 60 and the external tube 42 or to create turbulence because positioning of the internal tube 60 in relation to the external tube 42 is unimportant and fluid flow patterns are controlled by other factors including diameter, lumen, and flow rate”.
  • the present invention proposes controlling the respective flow regimes in the fluid admission and return tubes by giving the inside surfaces of these tubes configurations that are suitable for encouraging the looked-for type of flow.
  • the fluid admission and return tubes are tubes engaged one inside the other, one of the tubes being an inner tube open at its distal end, with its wall constituting said common wall, and the other of the tubes being an outer tube containing the inner tube and closed at its distal end.
  • the inside surface of the inner tube is smooth, and the outside surface of the same inner tube is provided with said portions in relief.
  • the fluid admission and return tubes are adjoining tubes. There may be a single admission tube associated with a single return tube, the section of the return tube being greater than the section of the admission tube. However, it is also possible to provide at least three tubes, with the number of fluid admission tubes being smaller that the number of fluid return tubes, the total section of the return tube(s) being greater than the total section of the admission tube(s).
  • the invention also provides a network for collecting thermal energy from the ground for a heat pump, the network comprising a plurality of probes as defined above buried in tunnels dug in the ground.
  • a network presents a three-dimensional configuration bounded by an envelope volume extending over a given area of ground and over a given burying depth.
  • the probes include reinforced insulation of the fluid admission tube and/or of the fluid return tube over their portions extending between ground level and said envelope volume.
  • the envelope volume extends to a depth lying in the range 0.5 meters (m) to 10 m below ground level, and the probes are placed with their terminal ends at the lowest point in order to avoid bubbles forming.
  • This characteristic configuration enables the tubular element to be inserted via its free portion into a gallery of small diameter (a few tens of millimeters) that opens out to the surface at a single point.
  • Drilling machines of small dimension do indeed exist that enable galleries to be dug very easily and at low cost over several tens of meters in length and having a diameter of several tens of millimeters (e.g. a diameter of 50 mm), e.g. the miniature drilling machines or “moles” used for passing water supply tubes under roads or buildings, without it being necessary to dig an open trench.
  • the galleries dug by said drilling machines are not necessarily vertical or horizontal, but may follow any arbitrary curved track adapted to the configuration of the site. Digging such a gallery does not lead to significant damage to the terrain, which eliminate the major drawback of horizontal collection, also making it possible to dig a gallery that is sufficiently deep to avoid interfering with planting trees and to avoid any need to drill holes in the ground.
  • drilling such a gallery requires only a small area, and can even be undertaken from inside a building, with heat energy then being collected either in full or in part from under the building.
  • the use of the collection probe of the invention thus minimizes nuisance while it is being buried and can be implemented at small cost and without putting restrictions on subsequent utilization of the terrain.
  • FIG. 1 is a vertical section of a collector probe in a first embodiment of the invention.
  • FIG. 2 is a plan view in section on line II-II of FIG. 1 .
  • FIG. 3 shows a detail marked III in FIG. 1 .
  • FIG. 4 is a section on line IV-IV of FIG. 1 .
  • FIGS. 5 , 6 , and 7 are analogous to FIG. 4 , showing other embodiments of the invention.
  • FIG. 8 is a diagrammatic view showing how a plurality of probes of the invention can be connected in series in association with a common heat pump.
  • FIGS. 9 and 10 are an elevation view and a section view showing an array of probes installed in the ground in a configuration that is particularly advantageous.
  • reference 10 is an overall reference for the collector probe of the invention, which in this embodiment is constituted by two tubes, one engaged in the other, comprising an outer tube 12 and an inner tube 14 .
  • the outside diameter d of the outer tube is about 40 mm, thus enabling it to be inserted into a tunnel or well 16 having a diameter D that is slightly greater, e.g. a diameter of 50 mm.
  • the outer tube 12 is closed at its distal end 18 by any suitable means, for example by a mechanical plug or by being molded into a closed configuration while hot.
  • This end 18 is also advantageously covered by a protective endpiece 20 , e.g. made of metal, to make it easier to engage the tube in a tunnel.
  • the inner tube 14 is open at its distal end 22 so as to leave a gap 24 between said end 22 and the facing closed end 18 of the outer tube 12 .
  • the outer and inner tubes 12 and 14 are connected to a header connection element 26 enabling the two tubes to be connected to each other, with the inner tube 14 occupying the central position and emerging at 28 .
  • the header connection 26 also has longitudinal passages 30 (also visible in the section of FIG. 2 ) that open out into an annular chamber 32 , in turn communicating with an outlet orifice 34 which is thus put into fluid communication with the volume of the outer tube 12 that extends between the wall of said tube and the wall of the inner tube 14 .
  • the inner tube 14 may advantageously be made in the manner shown in detail in FIG. 3 , comprising an inner wall 36 with a free surface 38 that is smooth, and an outer wall 40 with an outer surface 44 provided with portions in relief such as 44 .
  • An isothermal core 46 serves to provide thermal insulation between the flows flowing on either side of the tube 14 .
  • the tube walls can be hollow, with cavities such as 48 that provide reinforced insulation of the flow from one portion to another of the wall.
  • Fluid circulates in the probe as follows.
  • the cold fluid leaving the heat pump is introduced (arrow 50 ) into the proximal free end 28 of the inner tube 14 (the fluid admission tube) from which it flows to the distal end 22 , the smooth surface 38 encouraging laminar flow of the fluid in the tube.
  • the fluid then opens out into the zone 24 situated at the distal end of the outer tube 12 (the fluid return tube), from which it is sent back towards the opposite end of the same tube (arrows 52 , 54 ) over its entire length, in order to be collected (arrow 56 ) via the passages 30 leading to the outlet 34 of the header connection element 26 (arrow 58 ).
  • the presence of the portions in relief 44 contributes to create turbulence in the fluid, thereby slowing it down and increasing heat exchange with the outside.
  • the fluid introduced from the proximal end of the inner tube 14 is taken directly to the distal opening 22 of that tube without negotiating any obstacles other than the curves followed by the tube. On reaching the distal opening, the fluid at the distal end of the outer tube returns towards the proximal end thereof.
  • the collector fluid While traveling along the outer tube 12 , the collector fluid receives heat energy from the surrounding medium, and then returns to the heat pump, which concentrates and extracts said heat energy prior to returning the cooled fluid to the probe in order to renew a collection cycle.
  • heat collection begins in the distal region of the probe, i.e. the region that is likely to be the hottest and the region in which temperature is renewed the most quickly, after which the liquid rises back towards the heat pump which is thus fed with heated fluid.
  • the flow direction of the fluid can be reversed, i.e. the fluid can be admitted via the orifice 34 into the outer tube 12 (which then becomes a fluid admission tube) in order to travel therealong over its entire length and be collected at the distal end by the tube 14 (which thus becomes the fluid return tube), and be extracted therefrom via the opening 28 .
  • the portion of the surrounding medium that is closest to the header connection element 26 that is involved the most in heat exchange. It will readily be understood that one or other of those two configurations can be selected merely by reversing the direction in which fluid circulates through the collector probe, thus making it very simple to optimize heat exchange as a function of requirements, or possibly to test both configurations and compare the results obtained.
  • the outer tube 12 is made of a material that presents strength and semi-stiffness that are sufficient under most circumstances to enable the tube to be pushed along the tunnel 16 after it has been bored. Where necessary, the tube may be pressurized so as to increase its stiffness and its strength. The material should also be selected so as to present sufficient ability to withstanding stretching so as to make it possible, where necessary, to pull the tube along the tunnel from an open remote end thereof. The tube should also be sufficiently strong to withstand being flattened and it should be inert relative to the fluid that is to circulate therealong.
  • drinking water supply tubes made of polypropylene are entirely suitable for use in most circumstances for heat pumps using a mixture of water and ethylene glycol as the heat-conveying fluid in the heat collector network.
  • the heat-conveying fluid of the network is a gas
  • a metal tube of small diameter so as to limit the amount of gas used and so as to reduce head losses.
  • a tube made of stainless steel tubing closed at its end by welding with tube segments being connected end to end by welding (e.g. orbital TIG welding) either beforehand or else as necessary while the tube is being buried: under such circumstances, it is possible to build up quickly a continuous tube of strength that is entirely uniform along its entire length, using tube segments of arbitrary length.
  • the inner tube 14 can be a tube of plastics material that is sufficiently flexible, and that is provided with portions in relief 44 , e.g. fluting, bulges, etc., integrally molded therewith. Its length is matched to the length of the outer tube so as to ensure that its distal opening 22 is situated a few centimeters away from the end closure 18 of the outer tube, and said distal opening may be chamfered to maximize fluid delivery. Lateral slots (not shown) may be provided to enable fluid to circulate even in the event of the distal portion of the probe being flattened or blocked in some other way.
  • the inner tube 14 must be inert relative to the heat-collection fluid.
  • its minimum radius of curvature must be smaller than or equal to that of the outer tube, and its outside diameter must be smaller than the inside diameter of the outer tube so as to enable it to be engaged inside the outer tube.
  • the inner and outer tubes may be strictly coaxial; the inner tube 14 may come into contact with the inside wall of the outer tube 12 , e.g. in regions where the probe is curved, without that impeding fluid circulation: flow section remains the same providing the tubes are not flattened, and indeed from the thermal point of view, such a singularity can have the advantage of creating additional turbulence where it occurs.
  • the material of the inner tube 14 is preferably a material of low thermal conductivity, or else it is constituted by a structure that includes an isothermal core 46 and/or the insulating cavities 48 as shown in FIG. 3 . This provides thermal insulation between the flows in opposite directions, i.e. this insulates the flow in the inner tube 14 (admission flow) from the flow in the outer tube 12 (return flow). Heat exchange must take place essentially between the fluid flowing in the outer tube 12 and the surrounding environment, and not between the two opposite-direction flows.
  • the respective sections of the outer and inner tubes are advantageously selected so as to define an optimum ratio between the admission flow section (in the inner tube 14 ), and the return flow section (between the outer tube 12 and the inner tube 14 ).
  • the admission section is less than the return section, the speed of the admission flow is higher than that of the return flow.
  • An admission flow that is fast minimizes losses in the inner tube 14
  • a return flow that is slow and turbulent encourages heat exchange between the outer tube 12 and the surrounding medium.
  • a collector probe with an outer tube 64 and an inner tube 66 that is no longer engaged inside the outer tube, but that touches it internally so that they share a common wall 68 with both tubes extending on the same side thereof.
  • Such an assembly can be made by extrusion or co-extrusion, for example.
  • the dimensions of the outer and inner tubes 64 and 66 are selected so as to define a return flow section 70 that is considerably greater than the admission flow section 72 so as to slow down the return flow and encourage heat exchange.
  • the two tubes no longer touch internally, but instead they touch externally, the probe being in the form of two adjoining tubes 74 and 76 sharing a common wall 78 with the tubes extending on opposite sides thereof.
  • the probe being in the form of two adjoining tubes 74 and 76 sharing a common wall 78 with the tubes extending on opposite sides thereof.
  • the number of tubes provided is greater than two, for example there are three tubes 80 , 82 , and 84 . If the tubes are all of the same diameter, it is then possible to use two of the tubes 80 and 82 for the return flow and a single tube 84 for the admission flow. This likewise makes it possible overall to increase the return flow section.
  • FIG. 8 is a diagram showing an installation in which a plurality of collector probes 10 , 10 ′, and 10 ′′ of the invention are used, the probes being connected in series in order to further increase heat exchange with the surrounding medium.
  • the inlet 28 of the first probe 10 is connected to the fluid outlet 86 of the heat pump 88 , the outlet 34 of said first probe is connected to the inlet 28 ′ of the second probe 10 ′, and so on, the outlet 34 ′′ of the third probe 10 ′′ being connected to the fluid inlet 90 of the heat pump 88 .
  • the collector probe of the invention or a plurality of collector probes of the invention can be buried in a tunnel following a path that it defines as a function of topographical constraints and of the nature of the subsoil.
  • the tunnel can equally well be sloping, vertical, initially sloping followed by a horizontal level, curved, etc. It is possible to provide an installation with tunnels that descend to a variety of depths in the ground and that are disposed one above another with sufficient spacing.
  • Such a configuration serves in particular to engage a mass of heat-collection medium that is much greater than is possible with configurations that are linear or in two dimensions, as is the case with conventional collection systems that are vertical or horizontal.
  • FIGS. 9 and 10 are an elevation view and a section view respectively showing a network of probes installed in this way in the ground in a configuration that is particularly advantageous.
  • this network has five probes 10 as described above, which are introduced into tunnels dug substantially from the same location, each opening to the atmosphere via a single orifice only.
  • the probes 10 After being inserted in the tunnels, the probes 10 are connected in series and/or in parallel and they are connected to the heat pump 88 .
  • the network of probes extends through the subsoil radially from the connection point like tentacles which, in plan view ( FIG. 10 ), can be of arbitrary shape depending on the constraints of the surrounding ground, the only limit being the radius of curvature that can be achieved by the machine digging the tunnel, and the radius of curvature that can be followed by the probe.
  • the network of probes extends to a depth that is selected as a function of the thermal characteristics of the ground and of regulations, typically being of the order of 0.5 m to 10 m below ground level, i.e.
  • the mass of ground engaged in collecting heat is thus defined by a three-dimensional volume 92 situated at shallow depth and occupying the ground around the heat pump.
  • This collection volume 92 extends at least 50 cm below ground level, and it is possible to install a network of probes even in the presence of trees 94 , and it is also possible to pass under the dwelling 96 , as can be seen in FIG. 10 .
  • This figure also shows two probes which, in plan view, cross each other, which is entirely possible since the tunnels are not bored at exactly the same depth at this location. It is thus possible to modulate the location and the intensity of heat exchange with the surrounding medium as a function of topographical constraints, while avoiding all of the drawbacks associated with prior art loop systems.
  • the tubes and probes 10 are advantageously provided with thermal insulation 98 , e.g. in the form of insulating sleeves, covering those portions that extend between ground level (manifold or connection to the heat pump 88 ) and the upper level of the collection volume 92 . This serves to avoid ineffective heat exchange in this shallow region of the ground which can drop to a temperature that is too low to provide satisfactory thermal efficiency.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Road Paving Structures (AREA)
  • Measuring Volume Flow (AREA)
US11/919,085 2005-04-21 2006-04-20 Probe For Collecting Thermal Energy From The Ground For A Heat Pump, And A Collection Network Equipped With Such Probes Abandoned US20090025902A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0503999A FR2884905B1 (fr) 2005-04-21 2005-04-21 Sonde de captage de l'energie thermique du sol pour pompe a chaleur
FR0503999 2005-04-21
PCT/FR2006/000863 WO2006111655A1 (fr) 2005-04-21 2006-04-20 Sonde de captage de l'energie thermique du sol pour pompe a chaleur, et reseau de captage muni de telles sondes

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US20090025902A1 true US20090025902A1 (en) 2009-01-29

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US (1) US20090025902A1 (fr)
EP (1) EP1872067A1 (fr)
CN (1) CN1854641A (fr)
BR (1) BRPI0610505A2 (fr)
CA (1) CA2604260A1 (fr)
FR (1) FR2884905B1 (fr)
RU (1) RU2007143052A (fr)
WO (1) WO2006111655A1 (fr)

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US20110036112A1 (en) * 2009-08-17 2011-02-17 American Ecothermal, Inc. Turbulence Inducing Heat Exchanger
US20110272054A1 (en) * 2009-10-28 2011-11-10 Tai-Her Yang Pipe member equipped with heat insulation core pipeline and u-shaped annularly-distributed pipeline
KR101124125B1 (ko) * 2009-04-30 2012-03-21 스톤 석화 김 복합형 루프시스템
WO2012140324A1 (fr) * 2011-04-14 2012-10-18 Runtech Systems Oy Appareil permettant de mettre en œuvre un système de chaleur géothermique et procédé permettant d'exploiter celui-ci
EP2385328A3 (fr) * 2010-05-04 2013-04-24 STS Spezial-Tiefbau-Systeme GmbH Sonde géothermique à injection
WO2013068614A1 (fr) * 2011-11-08 2013-05-16 Abn Pipe Systems, S.L.U. Sonde pour l'échange de chaleur dans des applications aérotechniques et exothermiques
EP2627833A1 (fr) * 2010-10-14 2013-08-21 Heatwork AS Dispositif d'échange de chaleur
WO2014168929A1 (fr) * 2013-04-08 2014-10-16 Latent Energy Transfer System, Llc Pompe à chaleur à échange direct, à circuit enterré incliné d'au maximum 25 degrés sur l'horizontale
WO2015003085A1 (fr) * 2013-07-02 2015-01-08 Kawano Kegan Nobuyshi Stockage d'énergie thermique par réservoir en forme de colonne
EP2940404A1 (fr) * 2014-04-30 2015-11-04 Ledwon, Anton Sonde géothermique et pied de sonde de sonde géothermique
JP2016109186A (ja) * 2014-12-04 2016-06-20 東京エレクトロン株式会社 継ぎ手
RU2591362C1 (ru) * 2015-06-11 2016-07-20 Открытое акционерное общество "ИНСОЛАР-ИНВЕСТ" Геотермальная теплонасосная система
CN106895727A (zh) * 2017-04-14 2017-06-27 湖南工业大学 一种翅片管换热器及其应用和余热锅炉
US20180073778A1 (en) * 2016-09-09 2018-03-15 Korea Institute Of Energy Research Coaxial ground heat exchanger and ground heat exchange system including the same
US20180340711A1 (en) * 2015-11-24 2018-11-29 Brgm High-Pressure And High-Temperature Closed Geothermal Exchanger For A Magmatic Or Metamorphic Formation
WO2019012079A1 (fr) * 2017-07-13 2019-01-17 E-Tube Sweden Ab Agencement de raccord pour tube d'étanchéité flexible et procédé de raccordement dudit tube d'étanchéité flexible
US20190154307A1 (en) * 2016-10-26 2019-05-23 Eco-Planner Co., Ltd. Underground heat exchanger
WO2020049233A1 (fr) * 2018-09-06 2020-03-12 Esiee Paris - Chambre De Commerce Et D'industrie De Region Paris Ile De France Échangeur thermique flexible destine a être dispose dans un fluide extérieur en mouvement, comprenant un assemblage de sondes thermiques flexibles
JP2020514672A (ja) * 2017-03-07 2020-05-21 エー−チューブ・スウェーデン・アーベー 可撓性封止チューブおよびその製造方法
EP3580502A4 (fr) * 2017-02-10 2020-12-23 Her Majesty the Queen in Right of Canada as represented by the Minister of Natural Resources Unité d'échange de chaleur au sol à canaux multiples et système géothermique
US20230047310A1 (en) * 2021-08-12 2023-02-16 Bernard J. Gochis Piles providing support and geothermal heat exchange
EP4206557A1 (fr) * 2021-12-28 2023-07-05 Muovitech AB Collecteur
WO2023192412A1 (fr) * 2022-03-30 2023-10-05 Hunt Energy, L.L.C. Système et procédé d'extraction d'énergie géothermique améliorée
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US10088199B2 (en) * 2016-09-09 2018-10-02 Korea Institute Of Energy Research Coaxial ground heat exchanger and ground heat exchange system including the same
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US20190154307A1 (en) * 2016-10-26 2019-05-23 Eco-Planner Co., Ltd. Underground heat exchanger
US10871310B2 (en) * 2016-10-26 2020-12-22 Eco-Planner Co., Ltd. Underground heat exchanger
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EP3580502A4 (fr) * 2017-02-10 2020-12-23 Her Majesty the Queen in Right of Canada as represented by the Minister of Natural Resources Unité d'échange de chaleur au sol à canaux multiples et système géothermique
JP7084951B2 (ja) 2017-03-07 2022-06-15 エー－チューブ・スウェーデン・アーベー 可撓性封止チューブおよびその製造方法
JP2020514672A (ja) * 2017-03-07 2020-05-21 エー−チューブ・スウェーデン・アーベー 可撓性封止チューブおよびその製造方法
CN106895727A (zh) * 2017-04-14 2017-06-27 湖南工业大学 一种翅片管换热器及其应用和余热锅炉
WO2019012079A1 (fr) * 2017-07-13 2019-01-17 E-Tube Sweden Ab Agencement de raccord pour tube d'étanchéité flexible et procédé de raccordement dudit tube d'étanchéité flexible
WO2020049233A1 (fr) * 2018-09-06 2020-03-12 Esiee Paris - Chambre De Commerce Et D'industrie De Region Paris Ile De France Échangeur thermique flexible destine a être dispose dans un fluide extérieur en mouvement, comprenant un assemblage de sondes thermiques flexibles
FR3085744A1 (fr) * 2018-09-06 2020-03-13 Esiee Paris - Chambre De Commerce Et D'industrie De Region Paris Ile De France Echangeur thermique flexible comprenant un assemblage de sondes thermiques flexibles
US20230047310A1 (en) * 2021-08-12 2023-02-16 Bernard J. Gochis Piles providing support and geothermal heat exchange
US11953237B2 (en) * 2021-08-12 2024-04-09 Bernard J. Gochis Piles providing support and geothermal heat exchange
EP4206557A1 (fr) * 2021-12-28 2023-07-05 Muovitech AB Collecteur
WO2023192412A1 (fr) * 2022-03-30 2023-10-05 Hunt Energy, L.L.C. Système et procédé d'extraction d'énergie géothermique améliorée
US11828147B2 (en) 2022-03-30 2023-11-28 Hunt Energy, L.L.C. System and method for enhanced geothermal energy extraction
WO2023235324A1 (fr) * 2022-06-01 2023-12-07 Applied Exponential Technologies, Llc Échangeur de chaleur au sol à canaux concentriques
GB2624235A (en) * 2022-11-11 2024-05-15 Kohler Mira Ltd Plumbing or Ablutionary System

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FR2884905A1 (fr) 2006-10-27
BRPI0610505A2 (pt) 2012-01-10
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WO2006111655A1 (fr) 2006-10-26
RU2007143052A (ru) 2009-05-27

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