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WO2018033243A1 - Ensemble, en particulier machine frigorifique ou pompe à chaleur - Google Patents

Ensemble, en particulier machine frigorifique ou pompe à chaleur Download PDF

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Publication number
WO2018033243A1
WO2018033243A1 PCT/EP2017/000981 EP2017000981W WO2018033243A1 WO 2018033243 A1 WO2018033243 A1 WO 2018033243A1 EP 2017000981 W EP2017000981 W EP 2017000981W WO 2018033243 A1 WO2018033243 A1 WO 2018033243A1
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WO
WIPO (PCT)
Prior art keywords
heat
transfer fluid
heat transfer
reservoir
partial
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/EP2017/000981
Other languages
German (de)
English (en)
Inventor
Roland Burk
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.)
Mahle International GmbH
Original Assignee
Mahle International 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 Mahle International GmbH filed Critical Mahle International GmbH
Priority to US16/325,953 priority Critical patent/US20190203990A1/en
Publication of WO2018033243A1 publication Critical patent/WO2018033243A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/04—Heat pumps of the sorption type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/28—Disposition of valves, e.g. of on-off valves or flow control valves specially adapted for sorption cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
    • F25B49/046—Operating intermittently
    • 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
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/24—Storage receiver heat
    • 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
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0086—Partitions
    • F28D2020/0095—Partitions movable or floating
    • 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 an arrangement, in particular a chiller or heat pump, and a method for operating this arrangement.
  • Thermochemically driven sorption refrigeration systems have a high energy-saving potential, since cost-effective waste heat or excess heat is used as drive energy and expensive mechanical drive energy can be saved in this way.
  • the electrical networks can be relieved, especially in warm periods and climates with high refrigeration demand.
  • the systems can also be used as heat pumps, which raise additional ambient heat by means of burner heat to a temperature level sufficient for heating purposes.
  • thermochemical reactors have the disadvantage over periodically operating adsorption systems that the periodic temperature changes with cycled thermal masses result in efficiency losses which reduce the power density or power efficiency achieved by the adsorption heat pumps or adsorption refrigeration plant.
  • DE 10 2006 043 7 5 A1 discloses an adsorption heat pump in which a layer heat accumulator is used.
  • CONFIRMATION COPY This allows a staggered storage and reuse of sensible and latent heat in the adsorption cycle.
  • thermochemical reactor for forming an adsorption heat pump or an adsorption refrigerating machine - in the present case with a heat buffer, which has two partial reservoirs for receiving a heat carrier fluid having two different temperature levels.
  • This heat buffer is used to store in thermal thermal cycling of the thermochemical reactor and the associated switching of the reactor between two different temperature levels in the heat transfer fluid between heat.
  • thermochemical reactor is generally understood to mean a container having at least one working medium and an integrated heat transfer structure, with which an exothermic or endothermic reaction or phase transformation can be brought to a minimum depending on a temperature boundary condition under heat removal or supply
  • a sorption reactor or a phase changer in particular a condenser and / or evaporator .
  • components or subcomponents are also known under the terms “sorber”, “sorption reactor”, “thermochemical storage” or “phase changer”. known.
  • the presently used, essential to the invention heat buffer allows the intermediate storage of the heat transfer fluid with the temperature level of a heat source of the arrangement in the first part of memory and the simultaneous intermediate storage of the heat transfer fluid with the temperature level of a heat sink of the arrangement in the second part of the heat storage buffer store.
  • a volume decrease of the second partial accumulator is accompanied by the heat accumulator essential to the invention, and vice versa. Since the two volume-variable partial storage have the same total volume, introducing the heat transfer fluid with the temperature level of the heat source in the first subspace facilitates removal of the heat transfer fluid with the second temperature level from the second partial storage and vice versa. In this way, unwanted energy losses of the thermochemical reactor during thermal cycling, ie when switching between the two temperature levels of heat source and heat sink, can be minimized. As a result, this leads to an improved efficiency of the arrangement according to the invention over conventional arrangements.
  • An arrangement according to the invention in particular a chiller or a heat pump, comprises a first heat reservoir, which acts as a heat source, and a second heat reservoir, which acts as a heat sink.
  • the arrangement further comprises a thermochemically and fluidically connectable or connected to the heat reservoir thermochemical reactor.
  • the thermochemical reactor is preferably an essential component of an adsorption refrigerating machine or an adsorption heat pump.
  • the arrangement comprises a heat transfer fluid circuit, in which a heat transfer fluid for transporting heat between the two heat reservoirs and the thermochemical reactor is arranged.
  • a heat buffer is provided for temporarily storing tempered heat transfer fluid.
  • the heat buffer has a first partial storage with a variable storage volume.
  • the heat buffer has thermally and fluidly separated from the first part of a second storage partial memory with variable storage volume.
  • the arrangement comprises a present in the heat transfer fluid circuit valve system, which comprises at least one adjustable valve device.
  • the heat transfer between the two heat reservoirs, the thermochemical reactor and the heat buffer is controlled by the heat transfer fluid.
  • the arrangement according to the invention finally comprises a control / regulating device.
  • the heat buffer is designed for simultaneously receiving and emitting a first and a second fluid mass of the heat transfer fluid, the two fluid masses having different temperature levels. This makes it possible to store in the heat buffer simultaneously fluid mass with the temperature level of the heat source and fluid mass with the temperature level of the heat sink between.
  • the first partial storage of the intermediate heat storage medium is fluidically connected to the first heat reservoir and the second partial storage of Heat buffer memory fluidly connected to the second heat reservoir.
  • This measure allows a simple return stored in the intermediate storage heat transfer fluid with the temperature level of the heat source in the first heat reservoir.
  • this measure allows a simple return stored in the intermediate storage heat transfer fluid with the temperature level of the heat sink, in the second heat reservoir.
  • the heat buffer is realized as a container.
  • the container comprises a housing, in the interior of which a separating element is movably arranged, which subdivides the interior into a volume-variable first partial storage and a thermally isolated from the first partial storage, also volume-variable second partial storage.
  • a first passage for introducing and removing the heat transfer fluid is provided in or from the first part of memory.
  • a second passage is provided in the housing for introducing and removing the heat transfer fluid into or out of the second partial storage.
  • the housing is elongated.
  • the first passage is arranged at a first longitudinal end and the second passage at a second longitudinal end opposite the first longitudinal end.
  • large length / cross-sectional area serves the purpose that a temperature stratification of the incoming or outflowing fluid mass is largely retained and does not mix appreciably during the required storage time.
  • the housing may be formed as a tubular body which extends along an axial direction substantially rectilinear.
  • the separating element for forming the two volume-variable partial storage along the axial direction is movable on the inside of a peripheral wall of the tubular body.
  • a first sensor element is provided on the first passage, by means of which it is possible to determine whether the separating element is in a first end position, in which the separating element has a minimum distance to the first passage.
  • a second sensor element may be provided on the second passage, by means of which it is possible to determine whether the separating element is in a second end position in which the separating element has a minimum distance to the second passage.
  • an operating state in which the heat transfer fluid circuit forms a first partial circuit can be set by the control / regulation device in the at least one adjustable valve device of the valve system.
  • the heat transfer fluid circulates between the thermochemical reactor and the second heat reservoir, in such a way that heat from the thermochemical reactor in the second heat reservoir, ie in the heat sink, is transmitted. In this way, heat can be dissipated from the thermochemical reactor in a particularly effective manner.
  • the first partial store preferably has a maximum volume and the second partial store has a minimum volume. This means, that the first partial storage is filled with the heat transfer fluid, which has substantially the temperature level of the heat source.
  • an operating state in which the heat carrier fluid circuit forms a second partial circuit can be set by the control / regulation device in the at least one adjustable valve device of the valve system.
  • the heat transfer fluid circulates between the thermochemical reactor and the first heat reservoir, so that heat is transferred from the first heat reservoir, that is from the heat source, into the thermochemical reactor.
  • the second partial store preferably has a maximum volume and the first partial store has a minimal volume. This means that the second partial storage is filled with the heat transfer fluid, which essentially has the temperature level of the heat sink.
  • an operating state can be set by the control / regulation device in the at least one adjustable valve device of the valve system, in which heat transfer fluid is transported from the first part store of the heat intermediate store into the first heat store. At the same time, heat transfer fluid is transported from the first heat reservoir into the thermochemical reactor and heat transfer fluid is transported from the thermochemical reactor into the second storage unit. In this way, heat can be supplied to the thermoelectric reactor particularly effective for the temperature change from a low to a higher temperature level. This process is therefore referred to below as the heating process.
  • an operating state can be set by the control / regulation device in the at least one adjustable valve device of the valve system, in which heat is transported from the second partial reservoir into the second heat reservoir by means of the heat transfer fluid.
  • heat is transported from the second heat reservoir into the thermochemical reactor and from the thermochemical reactor into the first partial store by means of the heat transfer fluid.
  • the thermoelectric reactor can be particularly effectively removed heat for temperature change from a high to a lower temperature level. This process is therefore referred to below as the cooling process.
  • the first and the second heat reservoir and the thermochemical reactor for introducing and discharging the heat transfer fluid each have a fluid inlet or a fluid outlet.
  • the heat transfer fluid circuit comprises a first adjustable valve device, by means of which the fluid inlet of the thermochemical reactor is optionally connectable to the fluid outlet of the first or second heat reservoir.
  • the heat transfer fluid circuit comprises a second adjustable valve device, by means of which the fluid outlet of the thermochemical reactor is optionally connectable to the fluid inlet of the first or second heat reservoir.
  • the heat buffer is fluidly connected in parallel to the second valve device, so that the fluid inlet of the first heat reservoir communicates fluidically with the first part of memory and the fluid inlet of the second heat reservoir fluidly communicates with the second part of memory.
  • the first valve device and the second valve device each comprise a 3/2-way switching valve.
  • the invention further relates to a method for operating a, preferably previously presented, arrangement with a heat transfer fluid circuit in which a thermochemical reactor, two heat reservoirs of different temperature and a heat buffer are arranged and fluidly connected to each other by means of a heat transfer fluid circuit.
  • the heat buffer used for carrying out the method according to the invention has two thermal and fluidly separate partial reservoirs, in which a heat transfer fluid circulating in the heat transfer fluid circuit can be received thermally and fluidically separated from one another.
  • the heat transfer fluid temporarily stored at a higher temperature is taken from the first partial storage of the intermediate heat storage medium and fed to the thermochemical reactor via the first heat storage tank. At the same time discharged at a lower temperature from the thermochemical reactor ejected heat transfer fluid and introduced into the second part of the heat accumulator memory.
  • heat carrier fluid stored at a lower temperature is withdrawn from the second partial store of the intermediate heat store and fed to the thermochemical reactor via the second heat store.
  • heat transfer fluid ejected from the thermochemical reactor at a higher temperature is removed and introduced into the first partial storage of the intermediate heat storage tank.
  • FIG. 5 shows the structure of the inventive heat buffer of the arrangement of Figures 1 to 4 in a detailed view
  • FIG. 6 shows a first variant of the heat buffer of FIG. 5
  • FIG. 7 shows a second variant of the heat buffer of FIG. 5.
  • FIG. 1 shows an example of an arrangement 1 according to the invention, in particular a chiller or a heat pump.
  • the arrangement 1 comprises a first heat reservoir 2a having a first temperature and a second heat reservoir 2b having a second temperature T 2 .
  • the arrangement 1 comprises a thermochemical reactor 5, which is thermally and fluidically connectable or connected to the two heat reservoirs 2a, 2b.
  • the arrangement 1 comprises a heat transfer fluid circuit 3, in which a heat transfer fluid F for transporting heat between the two heat reservoirs 2a, 2b and the thermochemical reactor 5 is arranged.
  • thermochemical reactor is understood here to mean a device in which conversion processes by the supply and removal of heat - known to the person skilled in the art as reaction heat or sorption heat - are brought to completion at different temperatures Ti, T 2
  • the first temperature T has a greater value than the second temperature T 2 , ie the first heat reservoir 2a acts as a heat source from which heat is applied by means of the heat transfer fluid F.
  • the second heat reservoir 2b acts as a heat sink, to which heat can be transferred from the thermochemical reactor 5 by means of the heat transfer fluid F.
  • a heat transfer fluid circuit 3 a heat buffer 100 for temporarily storing the heat transfer fluid F is present.
  • the heat Storage tank 1 00 in conjunction with the two heat storage reservoirs 2 a, 2 b, permits a temperature change of the thermochemical reactor 5 from the temperature T 1 to the temperature T 2 and conversely with very low energy losses.
  • the heat buffer 100 has a first partial reservoir 101a with a variable storage volume 102a and thermally and fluidically separated therefrom a second partial reservoir 1101b with a variable storage volume 102b.
  • the volume-variable first partial memory 101 a of the heat buffer 100 is complementary to the volume-variable second partial memory 101 b formed so that of the two partial memories 10 a, 10 b formed total volume is always constant.
  • the heat buffer 100 may also be referred to as a sensitive short-term heat storage, regenerator or temperature changer and provides a component of the arrangement 1 essential to the invention, which makes a temperature change in the thermochemical reactor 5 with low energy losses possible in the first place.
  • the heat buffer 100 is designed to simultaneously receive and dispense a first and a second fluid mass of the heat transfer fluid F at different temperatures.
  • the heat buffer 100 is further configured for simultaneously receiving and discharging the first and second fluid mass of the heat transfer fluid F, wherein the two fluid masses have different temperature levels.
  • the heat buffer 100 is further configured to maintain temperature stratifications introduced in the flow direction in the time between the storage and the discharge of the fluid masses.
  • the first partial reservoir 101 a of the intermediate heat storage medium 100 is fluidically connected to the first heat reservoir 2 a.
  • the second partial reservoir 101b of the intermediate thermal storage 100 is fluidically connected to the second thermal reservoir 2b.
  • the operating principle of the heat buffer 100 is based on a thermally insulated fluid container with end-side openings and large length / cross-sectional ratio within which an insulating displaceable separating body is arranged, as shown schematically in Figure 5.
  • the heat buffer 100 is realized as a container 103.
  • This container 103 comprises a housing 104.
  • the housing 104 defines an interior space 107 in which a separating element 106 is movably arranged, which thermally and fluidically isolates the two partial reservoirs 101 a, 101 b from one another.
  • the partition member 106 divides the inner space 107 into a volume-variable first partial accumulator 101 a and a thermally and fluidly isolated from the first partial accumulator 101 a, also volume-variable second partial storage 101 b.
  • the separating element 106 of the heat buffer 100 is designed so that it is easily movable by pressure differences between the partial reservoirs and the two partial storage well seals against each other.
  • thermochemical reactor 5 and the heat buffer 100 each have separate containers 15 and 103, respectively.
  • a first passage 108a for introducing and removing the heat carrier fluid F at the temperature Ti into the first partial accumulator 101a or from the first partial accumulator 101a is present in the housing 104.
  • a second passage 108b for introducing and removing the heat transfer fluid F with the temperature T 2 into the second partial storage 101b or from the second partial storage 101b is provided.
  • the housing 104 is formed as a tubular body 105 which extends in a straight line along an axial direction A.
  • the separating element 106 is located to form the two volume-variable partial storage 101 a, 101 b along the axial direction A movable on the inner side 1 12 a peripheral wall 1 1 1 of the tubular body 105 at.
  • the first aperture 108a is disposed at a first longitudinal end 109a.
  • the second passage 108b is disposed at a second longitudinal end 109b opposite the first longitudinal end 109a.
  • the heat buffer 100 can be filled with "cold", heat transfer fluid F of the temperature T 2 at the leftmost, that is to say at the first passage 108a.
  • heat transfer fluid F of the temperature T 2 By hot, from the left via the first passage 108a incoming heat transfer fluid F of the temperature T !
  • the separator 106 may be displaced to the right towards the second passage 108b, thereby filling the heat buffer 100 with heat transfer fluid F of temperature T-.
  • heat transfer fluid F of temperature T 2 is expelled to the right through second passage 108b until separator 106 is at second passage 108b and heat transfer fluid F of temperature T 2 has been completely displaced from hot heat transfer fluid F of temperature Ti without mixing.
  • a first sensor element 10a is provided, by means of which it is possible to determine whether the separating element 106 is in a first end position in which it has a minimum distance to the first passage 108a.
  • a second sensor element is connected to the second passage 108b.
  • ment 110b is provided, by means of which it is possible to determine whether the separating element 106 is in a second end position in which it has a minimum distance to the second passage 108b.
  • a conveying device 8 for driving the heat transfer fluid F in the heat transfer fluid circuit 3 is provided in the heat transfer fluid circuit 3.
  • a valve system 9 is further provided which comprises a first adjustable valve device 10a and a second adjustable valve device 10b.
  • a control / regulating device 4 is provided, which cooperates with the valve devices 10a, 10b.
  • the first and second heat reservoirs 2a, 2b and the thermochemical reactor 5 each have a fluid inlet 11a, 11b, 11c or a fluid outlet 12a, 12b, 12c for introducing and discharging the heat transfer fluid F.
  • the fluid inlet 11b of the thermochemical reactor 5 can optionally be connected to the fluid outlet 12a, 12c of the first or second heat reservoir 2a, 2b.
  • the fluid outlet 12b of the thermochemical reactor 5 can optionally be connected to the fluid inlet 11a, 11c of the first or second heat reservoir 2a, 2b.
  • the heat buffer 100 is connected fluidically parallel to the second valve device 10b, so that the fluid inlet 11a of the first heat reservoir 2a communicates fluidically with the first partial reservoir 101a and the fluid inlet 11c of the second heat reservoir 2b fluidly with communicates with the second partial memory.
  • the first valve device 10a and the second valve device 10b are each a 3/2-way switching valve 13a, 13b formed.
  • thermochemical reactor 5 is switched over between a first state with temperature ⁇ of the first heat reservoir 2a and a second state with temperature T 2 of the second heat reservoir 2b.
  • the two valve devices 10a, 10b of the valve system 9 can be adjusted to an operating state, which is shown schematically in FIG.
  • the first partial memory 101 a, a maximum volume and the second partial memory 101 b a minimum volume, ie the first partial memory 101 a of the heat buffer 100 is filled with heat transfer fluid F of the temperature T1 and the second partial memory 101 b is empty.
  • the heat carrier fluid circuit 3 forms a first partial circuit 14a, in which the heat carrier fluid F circulates between the thermochemical reactor 5 and the second heat reservoir 2b.
  • the heat transfer fluid F transfers heat from the thermochemical reactor 5 into the second heat reservoir 2b, ie, heat is removed from the thermochemical reactor 5.
  • thermochemical reactor 5 As a consequence of this heat transfer from the thermochemical reactor 5 into the second heat reservoir 2b, heat of reaction of the thermochemical reactor 5 to the second heat reservoir is removed from the temperature T 2 .
  • the thermochemical reactor 5 is now switched to a state with temperature Ti of the first heat reservoir 2a.
  • the two valve devices 10a, 10b are initially adjusted by the control / regulation device 4 into an operating state shown in FIG. In the operating state shown in FIG. 2, the two valve devices 10a, 10b are set in such a way that heat carrier fluid F is transported from the first partial accumulator 101a of the heat accumulator 100 into the first heat reservoir 2a.
  • heat transfer fluid F is transported from the first heat reservoir 2a into the thermochemical reactor 5. Furthermore, heat transfer fluid F is transported from the thermochemical reactor 5 into the second partial storage 101 b.
  • the first part of memory 101 a of the heat buffer 100 is filled with heat transfer fluid F of the temperature ⁇ and the second part of memory 101 b filled with heat transfer fluid F temperature T2.
  • the temperature of the thermochemical reactor of T 2 increases to T ⁇ without the heat source 2a is withdrawn for this appreciable heat.
  • the partition 106 is in the above-mentioned first end position, which can be detected by the control / regulation device 4 by means of the first sensor element 110a ,
  • the two valve devices 10a, 10b are switched by the control / regulation device 4 into an operating state, which is shown schematically in FIG.
  • the heat carrier fluid circuit 3 forms a second partial fuel circuit 4b, in which the heat carrier fluid F circulates between the thermochemical reactor 5 and the first heat reservoir 2a. In this way, heat transfer fluid F is transported from the first heat reservoir 2a to the thermochemical reactor. In this operating state, heat is transferred from the first heat reservoir into the thermochemical reactor 5.
  • the second partial memory 101b have a maximum volume and the first partial memory 101a a minimum volume, ie, the second partial memory 101b of the heat buffer 100 is filled with heat transfer fluid F temperature T 2 and the first partial memory 101 b is empty.
  • the thermochemical reactor is fed through the first heat reservoir with the temperature level Ti.
  • the two valve devices 10a, 10b are adjusted by the control / regulation device 4 into an operating state shown in FIG.
  • the two valve devices 10a, 10b are set in such a way that heat is transported from the second partial reservoir 101b into the second heat reservoir 2b by means of the heat transfer fluid F.
  • heat is transported from the thermochemical reactor 5 into the first partial storage 101 a of the intermediate heat storage 100.
  • the temperature of the thermochemical reactor decreases from Ti to T 2 , without the heat sink 2b being supplied with appreciable heat therefor.
  • the separating element 106 is in the above-mentioned second end position, which is indicated by the control / regulation device 4 Help the second sensor element 110b can be detected.
  • the first partial reservoir 101 a is completely filled with the heat transfer fluid F (see FIG. 1).
  • the two valve devices 10a, 10b are switched back to the operating state shown in Figure 1 and a complete switching cycle of the thermochemical reactor 5 is completed.
  • FIG. 6 shows a development of the container 103 of FIG. 5.
  • a helical structure 13 is arranged in the interior 107 of the housing 104.
  • This helical structure 1 13 gives the interior 107 the geometry of a fluid channel 1 14 with helical geometry.
  • the fluid channel 1 14 is thereby limited by the helical structure 1 13 and the housing 104, in particular of its peripheral wall 11 1.
  • the helical structure 103 may be formed as an insert 15 arranged in the inner space.
  • the helical structure 1 13 may comprise at least ten turns 16, preferably even at least 20 turns.
  • the separating element 106 is adjustable, in particular displaceable, along the helical fluid channel 1 14. That is, the geometric shape of the partition member 106 is selected such that it is in the interior 107 along the fluid channel 1 14, which is bounded by the peripheral wall 1 1 1 and the helical structure 1 13, adjustable.
  • FIG. 7 shows a further variant of the example of FIG. 5, in which the container 103 is realized as a hose-like body 117, which extends along an extension E at least in sections, non-rectilinearly.
  • the separating element 106 for forming the two volume-variable partial reservoirs 101a, 101b along the extension means E is movable on the inner side 112 of the peripheral wall 11 of the tubular body 17.
  • a length of the housing 104 or of the tubular body 1 17 measured along the extension direction E is at least ten times, preferably at least twenty times, a transverse direction Q measured transverse to the direction of extent E.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

L'invention concerne un ensemble (1) qui comprend un premier et un second réservoir de chaleur (2a, 2b), un réacteur thermochimique (5) relié thermiquement et fluidiquement aux réservoirs de chaleur (2a, 2b), un circuit de fluide caloporteur (3), dans lequel se trouve un fluide caloporteur (F) destiné au transport de la chaleur entre les deux réservoirs de chaleur (2a, 2b) et le réacteur thermochimique (5), un accumateur de chaleur tampon (100) placé dans le circuit de fluide caloporteur (3) et destiné au stockage intermédiaire du fluide caloporteur (F), l'accumulateur tampon étant conçu pour accueillir le fluide caloporteur (F) à deux niveaux de température (T1, T2) différents et comprenant, à cet effet, une première partie d'accumulateur (101a) à volume de stockage variable (102a) et une seconde partie d'accumulateur (101b) à volume de stockage variable (102n), séparées thermiquement et fluidiquement l'une de l'autre, ainsi qu'un sytème de vanne (9) présent dans le circuit de fluide caloporteur (3), lequel comprend au moins un dispositif vanne réglable (10a, 10b) et au moyen duquel le transport de chaleur entre les deux réservoirs de chaleur (2a, 2b), le réacteur thermochimique (5) et l'accumulateur de chaleur tampon (100) par l'intermédiaire du fluide caloporteur (F) peut être commandé.
PCT/EP2017/000981 2016-08-17 2017-08-16 Ensemble, en particulier machine frigorifique ou pompe à chaleur Ceased WO2018033243A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/325,953 US20190203990A1 (en) 2016-08-17 2017-08-16 Arrangement, particularly refrigerating machine or heat pump

Applications Claiming Priority (2)

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DE102016215368.4 2016-08-17
DE102016215368.4A DE102016215368A1 (de) 2016-08-17 2016-08-17 Anordnung, insbesondere Kältemaschine oder Wärmepumpe

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WO2018033243A1 true WO2018033243A1 (fr) 2018-02-22

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DE (1) DE102016215368A1 (fr)
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DE102022000362A1 (de) 2022-01-31 2023-08-03 Roland Burk Sorptive Wärmetransformationseinrichtung und Verfahren für dessen Betrieb

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US11493281B1 (en) 2021-12-14 2022-11-08 Norwich Technologies, Inc. Floating separator piston for a thermal energy storage system
US11519504B1 (en) 2021-12-14 2022-12-06 Norwich Technologies, Inc. Piston ring for floating piston in a thermal energy storage system
US11543191B1 (en) * 2021-12-14 2023-01-03 Norwich Technologies, Inc. Thermal energy storage system with parallel connected vessels

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JPH06257884A (ja) * 1993-03-09 1994-09-16 Toshiba Corp 熱利用装置
DE102006043715A1 (de) 2006-09-18 2008-03-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Adsorptionswärmepumpe mit Wärmespeicher
EP2998666A1 (fr) * 2014-09-18 2016-03-23 Karlsruher Institut für Technologie Systeme de transformation de la chaleur par adsorption

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WO2015029001A1 (fr) * 2013-09-02 2015-03-05 Delta Recover Système de récupération de chaleur et procédé d'échange d'énergie

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Publication number Priority date Publication date Assignee Title
EP0086383A2 (fr) * 1982-02-15 1983-08-24 Hieronimi, Ulrich-M. Appareils à sorption et procédé pour leur mise en oeuvre
JPH06257884A (ja) * 1993-03-09 1994-09-16 Toshiba Corp 熱利用装置
DE102006043715A1 (de) 2006-09-18 2008-03-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Adsorptionswärmepumpe mit Wärmespeicher
EP2998666A1 (fr) * 2014-09-18 2016-03-23 Karlsruher Institut für Technologie Systeme de transformation de la chaleur par adsorption

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022000362A1 (de) 2022-01-31 2023-08-03 Roland Burk Sorptive Wärmetransformationseinrichtung und Verfahren für dessen Betrieb

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US20190203990A1 (en) 2019-07-04
DE102016215368A1 (de) 2018-02-22

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