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WO2017088983A1 - Matériau à changement de phase, procédé, et système de chauffage - Google Patents

Matériau à changement de phase, procédé, et système de chauffage Download PDF

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Publication number
WO2017088983A1
WO2017088983A1 PCT/EP2016/025154 EP2016025154W WO2017088983A1 WO 2017088983 A1 WO2017088983 A1 WO 2017088983A1 EP 2016025154 W EP2016025154 W EP 2016025154W WO 2017088983 A1 WO2017088983 A1 WO 2017088983A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
heat exchanger
storage
storage medium
latent
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.)
Ceased
Application number
PCT/EP2016/025154
Other languages
German (de)
English (en)
Inventor
Manfred Schönberger
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.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of WO2017088983A1 publication Critical patent/WO2017088983A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F24D11/0228—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with conventional heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • F24D2200/123—Compression type heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/10—Heat storage materials, e.g. phase change materials or static water enclosed in a space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0025—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes
    • F28D7/0033—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes the conduits for one medium or the conduits for both media being bent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • F28F1/18—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion the element being built-up from finned sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the invention relates to a latent heat storage, a method for operating such a latent heat storage and a heating arrangement with such a latent heat storage.
  • Latent heat storage use the principle of exploiting a phase transition of a storage medium such as water, paraffin or molten salts from solid to liquid and vice versa. That is, the utilization of the melting and solidification of the storage medium and vice versa.
  • the storage medium is melted, which absorbs a lot of heat energy, that is, heat of fusion.
  • Latent heat storage solidifies the storage medium, wherein the storage medium releases the previously recorded large amount of heat as solidification heat again.
  • Such latent heat storage find, for example, in building services but also in process plants application.
  • the object of the present invention is to provide an improved latent heat storage available. Accordingly, a latent heat storage, with a storage container, a recorded in the storage container storage medium, in particular paraffin, and at least partially in the storage medium arranged
  • Cooperströmigen heat exchanger arrangement proposed by means of which the storage medium at the same time heat energy can be supplied and removed while the
  • Heat exchanger assembly a condenser of a heat pump and a
  • Heat exchanger of a heating device wherein the heat exchanger comprises a heat conduction structure, and wherein a conduit of the condenser
  • a hard paraffin which is solid at room temperature is preferably used as the storage medium.
  • other storage media such as natural or synthetic waxes can be used.
  • thermal energy can also be supplied to and removed from the storage medium at a later time.
  • latent heat storage electric energy can be stored in the later Nutzform, that is, as heat energy, without reconversion into electrical energy at the required temperature level.
  • multivolume can also be replaced by the term more frequently.
  • the heat exchanger assembly comprises a plurality, preferably two, separate fluid channels through which the storage medium heat is supplied and / or withdrawn.
  • a heating surface of the heat exchanger arrangement, which is required for solidification of the storage medium can in particular be used simultaneously to store energy excess capacities in the storage medium.
  • Latent heat storage is to be expected with a maximum of two temperature cycles, since it is not gone for the storage on an intermediate medium.
  • the heat exchanger assembly includes a condenser of a heat pump and a heat exchanger of a heater.
  • the heater can be an electric heater, a gas heater, a
  • the heater is optional.
  • the condenser in particular a pipeline of the condenser, and the heat exchanger, in particular a pipeline of the
  • the heat exchanger assembly Because the heat exchanger is directly attached to the
  • the heat energy provided by the heat pump can be transferred directly to the heat exchanger. Not absorbed by the heat exchanger heat energy is immediately in the
  • Storage medium stored and can be removed if necessary from the latent heat storage again.
  • the condenser is adapted to transfer heat energy directly to the heat exchanger.
  • Heat energy not absorbed by the heat exchanger is preferably stored immediately in the storage medium and can be removed from the
  • Latent heat storage can be removed.
  • the heat energy without the need for a complex control, always to a heat sink of
  • the heat sink can be the storage medium or the heat exchanger.
  • the condenser is fixed, in particular materially bonded, to the heat exchanger.
  • the capacitor may for example be welded or soldered to the heat exchanger.
  • the heat exchanger and the capacitor may be glued together, for example.
  • the condenser and the heat exchanger are formed in one piece of material.
  • the condenser and the heat exchanger may be an extruded profile.
  • the condenser and the heat exchanger each have one zigzag or meandering curved geometry to increase a contact area to the storage medium.
  • the heat exchanger comprises a heat conduction structure.
  • Storage medium in particular the horrid Paraffin achieved.
  • a sufficiently good heat transfer between the storage medium and the heat-conducting structure is always ensured even when solidifying the storage medium.
  • a pipeline of the capacitor is arranged between heat-conducting ribs of the heat-conducting structure.
  • the heat conduction structure may be termed Kirby-Conducting ribs of the heat-conducting structure.
  • the heat conduction structure may be termed Kirby-conducting ribs of the heat-conducting structure.
  • the heat conduction structure may be termed Kirby-conducting ribs of the heat-conducting structure.
  • the heat conduction structure can be termed to increase the surface area.
  • the heat conducting ribs are arranged less than two centimeters apart to ensure a high discharge capacity of the latent heat storage.
  • the heat exchanger arrangement can be flowed through simultaneously with a refrigerant and with water.
  • the refrigerant transports enthalpy from the environment to the storage medium.
  • the difference with a coolant is that a refrigerant in a refrigeration cycle can do so contrary to a temperature gradient, so that the ambient temperature may even be higher than the temperature of an object to be cooled, while a refrigerant is only capable of enthalpy in a refrigeration cycle along the temperature gradient to a location lower temperature to transport.
  • the water can be water of a heating cycle.
  • the storage container is depressurized. This reduces the manufacturing cost of producing the latent heat storage compared to a pressurized storage tank.
  • the storage medium has a melting temperature between 40 ° C and 60 ° C
  • the water flowing through the heat exchanger has a
  • the storage medium is a hard paraffin with a
  • a method for operating a latent heat storage with the following steps proposed: feeding heat energy into a storage medium, in particular paraffin, the latent heat storage using a multi-flow heat exchanger assembly, with a photovoltaic system a time-limited Oversupply of electrical energy is generated, which is fed by means of a heat pump as heat energy in the storage medium; and simultaneously removing heat energy from the storage medium by means of the heat exchanger assembly.
  • the removal of the heat energy can also be delayed.
  • the heat energy is transferred by means of the capacitor of the heat exchanger assembly to the storage medium and with the aid of the heat exchanger of the
  • Heat exchanger assembly withdrawn from the storage medium again. It is possible with different proportions simultaneously or in parallel heat transfer from the condenser to the heat exchanger, from the condenser to the storage medium, from the heat exchanger to the storage medium and / or from the storage medium to the heat exchanger.
  • the heat exchanger arrangement is flowed through simultaneously with a refrigerant and water.
  • the refrigerant flows through the condenser and the water through the heat exchanger.
  • the refrigerant condenses in the condenser, releasing heat.
  • Latent heat storage proposed, wherein the latent heat storage via the heat exchanger assembly provided by the heat pump thermal energy can be supplied.
  • the heating arrangement for example, in the building services or in a
  • the heating arrangement further comprises a
  • Heat energy can be stored and used as needed without a conversion into electrical energy for heating.
  • the heat pump is adapted to receive ambient heat, geothermal or heat from an ice storage via an evaporator.
  • a heat pump is a machine that absorbs thermal energy from a reservoir at a lower temperature by using technical work and, together with the drive energy, as useful heat
  • Fig. 1 shows a schematic view of an embodiment of a heating arrangement
  • Fig. 2 shows a schematic sectional view of an embodiment of a
  • FIG. 3 shows a schematic block diagram of an embodiment of a
  • FIG. 1 shows a schematic view of a heating arrangement 1.
  • FIG. 2 shows a schematic sectional view of a latent heat accumulator 2 for the heating arrangement 1.
  • FIGS. 1 and 2 at the same time.
  • a building can be heated.
  • the heating arrangement 1 can also be used in process plants
  • the heating arrangement 1 can be used for de-icing of air-heated evaporators.
  • the heating arrangement 1 comprises, in addition to the preferably unpressurized
  • Latent heat storage 2 an electrically operated heat pump 3.
  • a heat pump 3 is a machine that consumes thermal energy from a reservoir with lower temperature - usually the environment - absorbs and together with the drive energy as useful heat on a too
  • the process used is in principle the reversal of a heat-power process involving heat energy recorded high temperature and partly in mechanical work
  • Heat pump 3 is preferably generated by means of a photovoltaic system 4. Even a smoothing of the power grid by consumption of the current peaks is possible.
  • Photovoltaics are the direct conversion of light energy, usually from sunlight, into electrical energy by means of solar cells.
  • the heat pump 3 has a liquid circuit in which a refrigerant circulates.
  • the liquid circuit comprises an evaporator 5 which is connected to a
  • Heat exchanger 6 absorbs heat, whereby the refrigerant evaporates. With the help of the heat exchanger 6, for example, ambient heat, geothermal or heat from an ice storage can be transferred to the evaporator 5. Of the
  • Liquid circuit further comprises a capacitor 7, the
  • Latent heat storage 2 is assigned.
  • the condenser 7 condenses
  • the condenser 7 comprises a feed 8 and a return 9.
  • the condenser 7 is in a storage container 10 of the
  • the storage container 10 is preferably barrel-shaped or barrel-shaped.
  • the storage container 10 is filled with a storage medium 1 1, in particular paraffin, preferably hard paraffin, which surrounds the capacitor 7.
  • the storage medium 1 1 may preferably have a melting point between 40 ° C and 60 ° C, preferably of 44 ° C or 56 ° C.
  • the heating arrangement 1 further comprises an optional heating device 12
  • Heating device 12 may be, for example, an electric heater, a gas heater or a high-temperature stage of the heat pump 3. That is, the
  • Heating device 12 may be integrated in the heat pump 3.
  • the heater 12 is configured to heat water.
  • the heating device 12 comprises a feed 13 and a return 14, wherein the flow direction of the water is shown in FIG. 1 with arrows. From the lead 13 branches a first
  • Hot water storage advance 15 from which leads to a arranged in a hot water tank 16 heat exchanger 17.
  • a pump device 18 is provided, which is arranged both upstream and downstream of a respective valve device 19, 20.
  • the valve devices 19, 20 may be switching valves, in particular solenoid valves.
  • a first Hot water storage return 21 connects the heat exchanger 17 fluidly with the return line 14 of the heater 12.
  • a valve device 22 is provided, which is identical to the
  • Valve devices 19, 20 may be configured.
  • Radiator flow 23 from may be connected to the radiators or radiators.
  • the radiator flow 23 comprises a pumping device 24, which upstream and downstream, respectively, is a valve device 25, 26. From the radiators or
  • Radiators performs a radiator return 27, which includes a valve means 28, back to the return 14 of the heater 12. Downstream of the radiator return 27, which includes a valve means 28, back to the return 14 of the heater 12. Downstream of the radiator return 27, which includes a valve means 28, back to the return 14 of the heater 12. Downstream of the radiator return 27, which includes a valve means 28, back to the return 14 of the heater 12. Downstream of the radiator return 27, which includes a valve means 28, back to the return 14 of the heater 12. Downstream of the
  • Hot water storage feed 15 and the heater advance 23 is a
  • Mixing device 29 is connected to a heat exchanger 30 a in the
  • Storage tank 10 of the latent heat storage 2 arranged heat exchanger 31 fluidly connected.
  • a heat exchanger return 32 of the heat exchanger 31 is connected to the return line 14 of the heater 12.
  • a second service water storage 33 is connected to the flow 13 of the heater 12.
  • Hot water storage feed 33 comprises a pumping device 34 and a valve device 35 arranged downstream of the pumping device 34.
  • the second hot water storage feed 33 leads to a further in the
  • a second process water storage return 37 leads back to the return 14 of the heater 12.
  • the second process water storage return 37 also includes a valve means 38th
  • a ceiling heating flow 39 is connected to the flow 13 of the heater 12 with a pumping device 40.
  • a ceiling heating or other radiator may be connected.
  • a valve device 41 is provided downstream of the pumping device 40.
  • an outside temperature-controlled mixing device 42 is arranged in the ceiling heating flow 39.
  • the mixing device 42 is fluidic with a ceiling heating return 43 connected.
  • the ceiling heating return 43 is fluidly connected downstream of the mixing device 42 with the return line 14 of the heating device 12.
  • a valve device 44 is provided in the ceiling heating return 43.
  • Pumping device 46 connected. At the floor heating flow 45 can be connected to a floor heating or other radiator. Downstream of the pumping device 46, a valve device 47 is provided. Upstream of the pumping device 46, a further outside temperature-controlled mixing device 48 is arranged in the underfloor heating flow 45. The mixing device 48 is fluidically connected to a floor heating return 49. The floor heating return 49 is fluidly connected to the return 14 of the heater 12 downstream of the mixing device 48. Upstream of the mixing device 48 is in the
  • the condenser 7 of the heat pump 3 and the heat exchanger 31 form a heat exchanger assembly 51 of the latent heat accumulator 2.
  • a heat exchanger assembly 51 of the latent heat accumulator 2 In this case form the
  • the condenser 7 comprises a pipeline 52 which is shown in multiple sections in FIG. 2, through which the refrigerant flows or in which the refrigerant condenses.
  • the pipeline 52 may meander or
  • the conduit 52 may have a circular or any other cross-section.
  • the heat exchanger 31 also includes a pipe 53 through which water flows.
  • the pipe 53 may, as shown in Fig. 2, a hexagonal
  • the pipe 53 is like the pipe 52, meandering or zigzag through the
  • a heat conducting structure 54 is provided for enlarging the surface of the heat exchanger 31.
  • the sauleit Camill 54 may be rib-shaped. With the help of the heat conduction structure 54, the heat transfer between the storage medium 1 1 and the heat exchanger 31 is improved.
  • the capacitor 7 is fixedly connected to the heat exchanger 31, for example glued, welded or soldered.
  • the condenser 7 is materially connected to the heat exchanger 31.
  • the pipe 52 is attached directly to the pipe 53. In this case, the pipeline 52 is arranged between heat-conducting ribs 55, 56 of the heat-conducting structure 54.
  • the skilletleitrippen 55, 56 may be branched to increase the surface area.
  • a distance between adjacent heat-conducting ribs 55, 56 is preferably less than two centimeters, since otherwise the discharge power of the latent heat accumulator 2 may decrease.
  • the heating arrangement 1 may further comprise an optional not shown in FIG.
  • Control means for driving the valve means 19, 20, 22, 25, 26, 28, 35, 38, 41, 44, 47, 50, the pump means 18, 24, 34, 40, 46, the mixing means 29, 42, 48, the Photovoltaic system 4, the heat pump 3 and / or the heater 12 include.
  • the photovoltaic system 4 generates a time-limited oversupply of electrical energy, for example in strong sunlight. This time-limited oversupply can be combined with a time-limited supply of energy, for example, at night. For this reason, storing the oversupply of energy as heat energy in the latent heat storage 2 offers.
  • the electrical energy in the later Nutzform that is stored as heat energy, without reconversion into electrical energy at the required temperature level.
  • the latent heat storage 2 preferably uses paraffin as the storage medium 1 1. With the help of the latent heat storage 2, the electrical energy generated by the photovoltaic system 4 is stored as heat energy.
  • the heat pump 3 is electrically operated by means of the photovoltaic system 4.
  • the heat pump 3 takes under application of technical work ambient heat, geothermal or heat an ice storage and transmits them together with the drive power through the capacitor 7 as useful heat to the storage medium 1 1.
  • the latent heat storage 2 works by exploiting the enthalpy of thermodynamic changes in state of the storage medium 1 1.
  • the principle used is the utilization of the phase transition from solid to liquid and vice versa. That is, the utilization of melting and solidification of the storage medium 1 1 and vice versa.
  • a phase is in physical chemistry, thermodynamics, materials science or
  • Fluid mechanics is a spatial domain in which the determining physical parameters and the chemical composition of matter are homogeneous.
  • a phase in terms of thermodynamics is any homogeneous part of a system.
  • the storage medium 1 1 solidifies, wherein the storage medium 1 1, the previously recorded large amount of heat as
  • Solidification heat gives off again. That is, in the transition from the solid to the liquid state of the storage medium 1 1, the heat supplied is first used to break the fixed crystalline order of the storage medium 1 1. As a result, the temperature of the storage medium 1 1 does not rise, although heat is supplied. If the storage medium 1 1 again withdrawn heat, then the latent heat is released again during the phase transition, without the storage medium 1 1 cools. Characterized in that the storage medium 1 1 a
  • the heat exchanger assembly 51 is multi-flow or multi-pass, since this includes both the condenser 7 and the heat exchanger 31.
  • the heating surface of the heat exchanger assembly 51 which is required for solidification of the storage medium 1 1, can be used simultaneously to Energyüberkapazticianen in the
  • Latent heat accumulator 2 diffuse.
  • the heat sink may be the storage medium 1 1 or the heat exchanger 31.
  • the mixing device 29 is preferably set so that it is activated at about 10 ° C. below the solidification temperature of the storage medium 1 1.
  • mixing devices 42 and 48 are externally temperature-controlled.
  • the mixing device 29 the process water storage 33
  • the heat pump 3 is activated when the variable costs for operating the heat pump 3 are less than the variable costs for operating the heating device 12.
  • the latent heat storage 2 thus acts as a storage buffer for the heating arrangement 1.
  • FIG 3 shows a schematic block diagram of an embodiment of a method for operating the latent heat accumulator 2.
  • the method comprises a step S1 of feeding heat energy into the storage medium 1 1 by means of the heat exchanger arrangement 51 and a step S2 of the simultaneous removal of heat energy from the storage medium 1 1 with the aid of the heat exchanger assembly 51st
  • the step S2 can also take place with a time delay.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Central Heating Systems (AREA)

Abstract

L'invention concerne un matériau à changement de phase (2), comprenant un réservoir (10), un milieu accumulateur (11), notamment de la paraffine, contenu dans le réservoir (10), et un système échangeur de chaleur (51) multiflux qui est disposé au moins dans certaines zones dans le milieu accumulateur (11) et qui permet d'acheminer l'énergie thermique simultanément de et vers le milieu accumulateur (11), le système échangeur de chaleur (51) comportant un condenseur (7) d'une pompe thermique (3) et un échangeur de chaleur (31) d'un système de chauffage (12), l'échangeur de chaleur (31) comportant une structure thermoconductrice (54), et une conduite (52) du condenseur (7) étant reliée d'un seul tenant à la structure thermoconductrice (54).
PCT/EP2016/025154 2015-11-26 2016-11-25 Matériau à changement de phase, procédé, et système de chauffage Ceased WO2017088983A1 (fr)

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DE102015015335.8 2015-11-26
DE102015015335.8A DE102015015335A1 (de) 2015-11-26 2015-11-26 Latentwärmespeicher, Verfahren und Heizanordnung

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EP4528203B1 (fr) * 2023-09-22 2025-10-01 Volvo Truck Corporation Système de stockage d'énergie thermique
DE102023132190A1 (de) * 2023-11-20 2025-05-22 Rawema Countertrade Handelsgesellschaft Mbh Wärmespeichersystem mit Latentwärmespeicher und Wärmepumpe

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DE19707158A1 (de) * 1997-02-22 1998-08-27 Ltg Lufttechnische Gmbh Kälteanlage
JP2003336974A (ja) * 2002-05-20 2003-11-28 Toyo Radiator Co Ltd 蓄熱型熱交換器
AT508056A1 (de) * 2009-04-06 2010-10-15 Arnold Hefter Solaranlage
DE202010015217U1 (de) * 2010-11-08 2011-02-24 Mürle, Udo Steuereinheit zum kombinierten Betrieb von Photovoltaikanlage und Wärmepumpe
WO2011057895A1 (fr) * 2009-11-12 2011-05-19 Unical Ag S.P.A. Échangeur de chaleur avec rendement thermique amélioré
US20130140015A1 (en) * 2011-06-06 2013-06-06 Panasonic Corporation Heat pump operation method and heat pump system
DE102012018577A1 (de) * 2012-09-20 2014-03-20 H2Q Systems GmbH Temperiereinrichtung

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DE202004009559U1 (de) * 2004-06-16 2004-09-23 Dietz, Erwin Wärmetauscher
DE102010025076A1 (de) 2010-06-25 2011-12-29 Georg Höhn Latentwärmespeicher und Anordnung zu seiner Be- und Entladung
US20120042687A1 (en) * 2010-08-23 2012-02-23 Showa Denko K.K. Evaporator with cool storage function
DE102012202841A1 (de) * 2012-02-24 2013-08-29 Lisa Dräxlmaier GmbH Fluiddurchströmtes Temperierelement und Traktionsbatterie mit gehäuseintegriertem fluiddurchströmten Temperierelement
DE102013218278A1 (de) * 2013-09-12 2015-03-12 Vritex-Technologies Ltd. Plattenförmiges Wärmetauscherelement für einen Eisspeicher

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707158A1 (de) * 1997-02-22 1998-08-27 Ltg Lufttechnische Gmbh Kälteanlage
JP2003336974A (ja) * 2002-05-20 2003-11-28 Toyo Radiator Co Ltd 蓄熱型熱交換器
AT508056A1 (de) * 2009-04-06 2010-10-15 Arnold Hefter Solaranlage
WO2011057895A1 (fr) * 2009-11-12 2011-05-19 Unical Ag S.P.A. Échangeur de chaleur avec rendement thermique amélioré
DE202010015217U1 (de) * 2010-11-08 2011-02-24 Mürle, Udo Steuereinheit zum kombinierten Betrieb von Photovoltaikanlage und Wärmepumpe
US20130140015A1 (en) * 2011-06-06 2013-06-06 Panasonic Corporation Heat pump operation method and heat pump system
DE102012018577A1 (de) * 2012-09-20 2014-03-20 H2Q Systems GmbH Temperiereinrichtung

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