• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    The invention relates to a method for producing a device for storing thermal energy by at least one solid / solid phase change material (2) comprising an enclosure (1) for storing thermal energy containing the at least one solid / solid phase change material (2) and a heat transfer fluid heat exchanger (3) for storing and extracting heat from said MCP s / s (2) immersed in said enclosure (1). The invention will find application in the field of storage of thermal energy and for example for the application of heat storage on a district or industrial heat network.
    公开号:FR3022617A1
    申请号:FR1455581
    申请日:2014-06-18
    公开日:2015-12-25
    发明作者:Zoe Minvielle；Raphael Couturier
    申请人:Commissariat a lEnergie Atomique CEA；Commissariat a lEnergie Atomique et aux Energies Alternatives CEA；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD The present invention relates to a method for producing a thermal energy storage device by Solid / Solid Phase Change Material (MCP s / s).
    [0002] The invention will find application in the field of storage of thermal energy. For example, it will be used for heat storage on an urban or industrial heat network. STATE OF THE ART Storage of thermal energy which consists of placing a quantity of energy in a given place to allow its subsequent use is an issue at all times. The control of energy storage is even more important nowadays to valorize alternative energies, which are intermittent. It is therefore necessary to store this energy for later use.
    [0003] Phase Change Materials (PCMs) have developed and are commonly used in buildings to accumulate solar thermal energy from individual solar water heaters. MCPs also smooth the energy production provided by alternative energies and increase storage capacity thanks to their high density energy density.
    [0004] Thanks to the MCP, the heat is absorbed or restored during a change of state. There are four types of MCP transformations: gas / liquid, gas / solid, solid / solid and liquid / solid. For energy storage for buildings, liquid / solid transformations are commonly used. They have high phase change enthalpies and reduced volume expansions upon melting. For liquid / solid MCPs, for example, the material stores heat as it moves from the solid state to the liquid state and then restores it when it changes from liquid to solid. Solid / solid transition PCMs are starting to develop, particularly in construction. The fact that they are permanently strong makes their packaging and their use easy. In addition, solid / solid phase change materials can store more heat than solid / liquid phase change materials. The invention thus makes it possible to benefit from the high energy density of MCP S / S.
    [0005] Nevertheless, there is still a need to improve the performance of MCP s / s and to allow ever greater storage and heat recovery.
    [0006] SUMMARY OF THE INVENTION The present invention proposes for this purpose a method for producing a thermal energy storage device in which at least one MCP s / s is formed directly in the energy storage chamber. Thus, according to the invention, the process 5 for forming at least one MCP s / s is at least partially carried out in the energy storage chamber. Said storage chamber containing the MCP s / s formed is then used for thermal energy storage cycles by storing and then returning heat in said MCP s / s. According to the present method, the energy storage chamber serves as a reactor for the formation of at least one MCP s / s. As a result, the handling of the MCP s / s is limited since it is formed in the enclosure that will be the storage enclosure. The manufacture of the storage device is facilitated. Preferably, at least one step of crystallization of the MCP s / s is performed in the enclosure so that the assembly of the enclosure and the device is optimal. Indeed, the introduction of a liquid into the chamber and its passage to the solid state by crystallization allows a total filling so that the void rate of the enclosure is as limited as possible. The method according to the invention also has the advantage of obtaining a storage device having storage capacities that are more efficient than the devices of the state of the art. In fact, according to the present process, the MCP s / s is not heated beyond its melting point, which makes it possible to maintain its chemical integrity and therefore its performance, unlike the MCP s / s of the state. of the technique which are heated beyond their melting point to be liquefied. Advantageously, the device comprises a heat exchanger heat transfer fluid arranged at least partially in said enclosure. The heat exchanger makes it possible to control the temperature inside the chamber during the formation of the MCP s / s and then to supply and recover the heat in the MCP s / s. BRIEF DESCRIPTION OF THE FIGURES The objects, objects, and features and advantages of the invention will become more apparent from the detailed description of an embodiment thereof which is illustrated by the following accompanying figures in which: FIG. : Diagram of embodiment of a device according to the invention with pentaerythritol as MCP s / s. Figure 2: Diagram of a thermal energy storage device comprising a finned tube exchanger.
    [0007] Figure 3: Diagram of a thermal energy storage device comprising a coil heat exchanger. DETAILED DESCRIPTION OF PARTICULAR EMBODIMENTS Before proceeding to a detailed review of embodiments of the invention, optional features are given below which may optionally be used in combination or alternatively. It will first be recalled that the invention relates to a method for producing a thermal energy storage device by at least one solid / solid phase change material comprising a thermal energy storage chamber containing the at least one solid / solid phase change material and a heat exchanger, with heat transfer fluid for storing and extracting heat from said MCP s / s, immersed in said chamber characterized in that at least one forming step of unless a solid / solid phase change material is made inside the storage enclosure, the at least one forming step comprises at least one crystallization step. Advantageously, according to preferred but non-limiting variants, the invention is such that: the at least one forming step comprises a concentration step carried out inside the storage enclosure; the at least one formation step comprises a filtration step carried out in the storage chamber; the at least one formation step comprises a step of mixing the reagents carried out in the storage chamber; Reactants are introduced into the formation of the at least one solid / solid phase change material in the enclosure by at least one supply conduit; liquid residues resulting from the formation of the at least one material of the enclosure are extracted by at least one withdrawal device; The thermal fluid heat exchanger is used to control the temperature inside the chamber during the formation of at least one solid / solid phase change material; the heat exchanger is configured to control the crystallization of the Solid / Solid Phase Change Material inside the enclosure; The at least one solid / solid phase-change material is solubilized in a solvent and then introduced into the storage chamber and then at least one crystallization step of the MCP s / s is carried out inside the enclosure ; a prior step of covering the inner metal walls of the enclosure with a coating material is intended to avoid contact between the at least one MCP s / s and the metal walls of the enclosure - a doping step from minus a MCP s / s is carried out in the enclosure for example to improve the thermal conductivity and / or limit supercooling; the at least one MCP s / s is pentaerythritol.
    [0008] Advantageously, the process does not include a step of liquefying the MCP s / s by heating beyond its melting point. Another object of the invention is a method for producing a thermal energy storage facility on an operating site characterized by the fact that it comprises the production of a thermal energy storage device. according to the method as described above; - The transport on the operating site of the device made the enclosure is filled with MCP s / s; the connection of the exchanger of the device to the fluidic network to start the storage of thermal energy. Another object of the invention is a thermal energy storage device produced by the method as described above comprising a thermal energy storage chamber containing at least one MCP s / s and a thermal fluid heat exchanger disposed at less partially in the chamber 25, characterized in that it comprises a device for regulating the temperature of the heat transfer fluid so as to be configured for: in a formation configuration of the at least one MCP s / s, controlling the temperature coolant to cause crystallization of the MCP s / s; In a use configuration, control the temperature of the coolant in order to bring and extract heat from the previously formed MCP s / s. Another object of the invention is the use of a thermal energy storage device produced by the method as described above comprising a thermal energy storage chamber containing at least one MCP s / s and an exchanger thermal fluid heat transfer fluid disposed at least partially in the chamber characterized in that it comprises a step of using the exchanger to control the crystallization of the MCP s / s in the chamber and a step of use heat exchanger to provide heat to the already formed MCP or to extract heat from the already formed MCP s / s.
    [0009] The process according to the invention relates to the manufacture of a thermal energy storage device. The device comprises a storage chamber 1 intended to contain at least one MCP s / s 2. The chamber 1 is conventionally of a cylindrical shape whose walls are formed of metal material resistant to variations in pressure and temperature. By way of example, the enclosure 1 is made of carbon construction steel. The classic grades for a pressure vessel are P235GH, P265GH, P355GH. In the absence of pressure, stainless steels 304, 316 can be used. The device comprises a heat exchanger 3 heat transfer fluid. This exchanger 3 dives into the enclosure 1 of the device. The exchanger 3 comprises an inlet 4 and an outlet 5 of the heat transfer fluid. The inlet 4 and the outlet 5 are arranged outside the enclosure 1. The inlet 4 and the outlet 5 may be, according to the embodiments, disposed at two opposite ends of the enclosure 1, for example the inlet 4 at the top and the outlet 5 at the bottom, as shown in FIGS. 2 and 3 or arranged on the same side, for example at the top. Preferably, the exchanger 3 is at least partially positioned in the chamber 1, preferably in the center. The exchanger 3 can be of different types including in particular with finned tubes illustrated in FIG. 2, this type of exchanger 3 has the advantage of improving exchanges by conduction and makes it possible to work at high pressure or with an illustrated coil. in Figure 3 which has the advantage of being less expensive or with plates. The heat transfer fluid is conventionally water but any other fluid having heat-producing properties can be used. The storage device according to the invention advantageously comprises a device for regulating the temperature of the coolant of 1 "heat exchanger 3. The regulating device makes it possible to control the temperature of the coolant to adapt it to the formation of the MCP. In particular, the control device also makes it possible to control the temperature of the coolant during the use of the energy storage device to supply and extract the heat transfer fluid. heat of the MCP s / s 2 contained in the enclosure 1.
    [0010] According to a preferred embodiment, the chamber 1 comprises classically metallic inner walls. The walls are preferably covered with a coating material intended to prevent contact between the at least one MCP s / s and metal parts. By way of example, the coating material is a polymer or a resin, preferably a fluorinated resin material such as PTFE, FEP or PFA. This arrangement improves the storage capacity of the MCP s / s by limiting the oxidation of MCP s / s during storage cycles in contact with oxygen and / or metal. Advantageously, this arrangement may also be useful for preventing corrosion of the enclosure 1 by the MCP s / s 2 if the latter is corrosive. The enclosure 1 contains at least one MCP s / s 2. It can be used mixtures of MCP s / s. In this case, at least one MCP s / s of the mixture is formed in the chamber 1. In the remainder of the description, the reference to an MCP s / s is not limiting. The enclosure 1 contains the MCP s / s 2 in the solid state which surrounds the exchanger 3.
    [0011] The exchanger 3 is embedded in the MCP s / s 2. In this way, the heat exchanger 3 recovers at best the heat variations of the MCP s / s. MCP s / s is a material with two solid phases whose passage between these two phases stores or releases energy. Preferably, the MCP s / s is a material with two solid phases with a crystalline structure whose passage from a first crystalline structure to a second crystalline structure will require heat which is then stored in the MCP s / s in its second crystalline structure. In contrast, the passage of the second crystalline structure to the first crystalline structure is exothermic and releases said stored heat. When the energy storage device operates to store thermal energy, the heat exchanger 3 brings heat into the chamber 1, there is a heat exchange of the heat transfer fluid to the MCP s / s through This heat will allow the transformation of the MCP s / s of the first crystalline structure to the second crystalline structure which will then store the heat from the coolant. When the device is operating to return heat energy, the heat exchanger 3 cools the MCP s / s, there is a heat exchange from the MCP s / s to the heat transfer fluid through the heat exchanger 3. allows the passage of the second crystalline structure to the first crystalline structure. This transformation is exothermic. The heat released is recovered by the coolant. Advantageously, the change in volume between the two phases of the MCP s / s is of the order of 5 to 10% maximum, which is less important than for the solid / liquid MCPs such as paraffins whose volume variation is the order of 15%.
    [0012] Moreover, with a MCP s / s the change of volume is in a homogeneous medium unlike solid / liquid MCP in which a liquid zone must find an expansion path in the middle of a solid. The constraints and the mechanical forces generated, especially on the chamber 1 and the exchanger 3, are therefore weaker with a PC s / s. Advantageously, in the device manufactured according to the invention, the use of MCP s / s suppresses liquid recirculation movements related to the thermal gradients generated by the solid / liquid MCP melting in the chamber 1. However, the presence of Temperature gradients in the chamber 1 induce recirculation movements by natural convection of the liquid, inducing mechanical stresses on the fins 9 of the exchanger tubes 8 and on the walls of the enclosure 1. According to the invention, the life of the device is lengthened by limiting the risk of damage. According to one embodiment, the MCP s / s may be doped to improve its thermal conductivity, i.e. to improve heat transfer within the MCP s / s. For example, doping with a dispersoid of carbon or metal fibers may be used. A fraction of fibers of the order of 5 to 10% by weight of the MCP s / s can be added without risk of settling of the doping particles. In another embodiment, graphite particles are added to the MCP s / s so as to allow more efficient nucleation and thereby limit supercooling. Advantageously, the subcooling is limited to 10 ° C. The material can be doped with a very small amount of graphite powder of the order of 0.1% by weight in order to create sites for nucleation of the crystals at the phase change. Supercooling is understood as the difference between the liquefaction temperature during heating and that of solidification upon cooling. According to another possibility, doping with 3% by mass of aluminum nitride nanoparticles (AlN) can be carried out. The filling of the chamber 1 with the MCP material s / s 2 is a critical step of this type of device. Indeed, the difficulty lies in optimizing the void rate of the chamber 1. However, this void ratio is particularly high when filling the chamber 1 with a MCP s / s in the solid state. In fact conventionally, the MCP s / s is introduced into the chamber 1 in the form of powder. The void rate is of the order of 25%. Vacuum rate means the volume fraction of the chamber 1 not occupied by the MCP s / s 2. This fraction may be composed of air and / or a neutral gas. According to the state of the art, in order to place a MCP material s / s in an enclosure comprising a heat exchanger, the MCP s / s is conventionally liquefied so as to be poured into the enclosure. To be liquefied, the MCP s / s is heated beyond its melting temperature and the chamber is filled with the MCP s / s liquid. The inventors have developed a new method of manufacturing this type of thermal energy storage device. According to the invention, the MCP s / s is formed in the enclosure 1 of the device. That is to say, it is no longer necessary to synthesize the MCP s / s 2, which is then in the form of a solid, then to liquefy it by heating and then again to resolidify it in the enclosure 1 by cooling. Advantageously, according to the invention, at least one step of forming the MCP s / s 2 is carried out in the chamber 1.
    [0013] The term "formation step" is understood to mean a chemical transformation step, that is to say a synthesis step or a physical transformation step, that is to say a step of structural change such as crystallization. According to the invention, crystallisation is understood as the precipitation of crystals in a liquid phase. The formation of an MCP s / s 2 advantageously comprises the successive stages of mixing reagents 21, filtration 22 and crystallization 23. Preferably, the process according to the invention comprises at least one crystallization step 23 carried out in the enclosure 1. More preferably, the process according to the invention comprises at least one crystallization step 23 and at least one preliminary filtration step 22 carried out in the enclosure 1. Even more preferentially, the method according to the invention comprises at least one crystallization step 23, at least one preliminary filtration step 22 and at least one step of mixing the reagents 21 made in the chamber 1. According to the invention, the reagents introduced into the chamber 1 to form the MCP s / s 2 in the chamber 1 are in the liquid state or at least in the form of a solution.
    [0014] Advantageously, the contacts between the walls of the enclosure 1 and the MCP s / s 2 are optimal and guarantee a limited void ratio, preferably less than 10%, more preferably of the order of one percent. The inventors have realized that the storage capacity of the storage device by MCP s / s 2 are increased by the method according to the invention. Without being linked to this reasoning, one explanation would be that when the MCP s / s 2 is heated beyond its melting temperature, the oxidation is increased causing a decrease in the reversibility of the MCP s / s 2 between the two. solid / solid phases. Advantageously, the method according to the invention also has the advantage of limiting the risk of damaging the coating of the inner walls of the enclosure 1. In fact, when introducing an MCP s / s 2 heated to the liquid state in the chamber 1, it is at a temperature above its melting temperature and therefore conventionally at a temperature higher than the maximum temperature of use of most of the polymers and coating resins. These can be damaged, removing their protective effect of oxidation. Preferably, the enclosure 1 comprises at least one feed duct 6 5 for introducing the reagents for forming the MCP s / s 2. The supply duct 6 is advantageously placed in the upper part of the enclosure 1 such that illustrated in FIGS. 2 and 3. Advantageously, the chamber 1 comprises a withdrawal device 7 intended to extract the residues resulting from the formation of the MCP s / s 2 in the chamber 1. The withdrawal device 7 is preferably arranged at lowest point of the chamber 1 as shown in Figures 2 and 3 so as to let the residues flow by gravity. The withdrawal device 7 comprises purge means and advantageously filtration means. The purge means comprise at least one outlet duct of the chamber 1 associated with at least one valve for controlling the opening of the duct.
    [0015] The filtration means are advantageously arranged outside the chamber 1 so that they can be removed, cleaned or changed. The filtration means are intended to retain the solid particles in the chamber 1 and to allow the purge of the liquid residues. By way of example, the filtration means is a sieve with a mesh selected to retain the solid particles of interest.
    [0016] According to the method of the invention, the heat exchanger 3 is advantageously used as a means of controlling the temperature in the chamber 1 during the formation of the MCP s / s 2 and also as a means of supplying and restoring the the heat in the MCP s / s 2 when using the device for storing thermal energy.
    [0017] According to a first embodiment, the reagents are preferably premixed before being introduced into the chamber 1. This premixing is, for example, carried out by a static mixer, which is inserted by plugging into the feed conduit 6 of the reagents. This is preferred in the most common case where the enclosure 1 does not have an internal mixer. Thus, the premixing is carried out and the chemical reaction is carried out in the chamber 1 so, as described below, that the temperature of the reaction is controlled by the exchanger 3. According to a second embodiment, the reagents are mixed before their introduction into the chamber 1. In this case the reactants are mixed and react outside the chamber 1. The product of the reaction is introduced into the chamber 1 where then takes place at least one crystallisation step 23. Preferably, at least one filtration step 22 also takes place in the chamber 1 as well.
    [0018] According to a third embodiment, the MCP s / s 2 is synthesized outside the chamber 1 prior to the method according to the invention. MCP s / s 2 in the solid state is solubilized. This solubilization is carried out by mixing the MCP s / s 2 with a suitable solvent. This solubilization differs from the liquefaction performed in the state of the art in which the MCP s / s is heated beyond its melting point to become liquid. According to the present embodiment, the MCP s / s is not liquefied but solubilized. There is no alteration of the chemical structure of MCP s / s. The solution obtained is then introduced into the chamber 1. This then takes place in the chamber 1 at least one crystallization step 23.
    [0019] According to the invention, the crystallization 23 of the MCP s / s 2 in the chamber 1 is understood as an evaporation crystallization step, a refrigeration crystallization step and / or a recrystallization step. Pentaerythritol (CAS 115-77-5) is a MCP s / s that can be used in the process according to the invention. Other MCP s / s such as trimethylol ethane [(CH3) -C- (CH2OH) 3] or neopentyl glycol ((CH3) 2-C- (CH2OH) 2) or mixtures may be used. By way of example, a flow chart summarizing the steps for forming pentaerythritol is shown in FIG.
    [0020] H2CO + CH3-COH + H2O + CaO (CH2OH) 3-C-COH + Ca (OH) 2 (A) (CH2OH) 3-C-COH + H2CO C- (CH2OH) 4 + HCOOH (B) The reaction (A) is an aldolization, i.e. an aldehyde condensation by reaction between formaldehyde (H2CO) and acetaldehyde (CH3-COH) in the presence of excess water (H2O). The mixture of these reagents 11 is produced in or outside the chamber 1 according to the embodiments described above. After the reaction and in order to remove as much water as possible, calcium oxide (CaO) is added to react with the excess water and form calcium hydroxide. This strongly exothermic reaction gives off heat which must be able to evacuate in order to avoid an excessive increase in the temperature of the reaction medium. According to one possibility, the calcium oxide is introduced little by little into the reactor to prevent excessive heat generation. This is called a semi-continuous reactor. This method of implementation has the drawback of lengthening the characteristic operating times. According to another advantageous possibility and if the mixture of the reactants 21 is produced in the chamber 1, the heat of reaction can be evacuated by the coolant of the exchanger 3.
    [0021] Filtration steps 22 are required to separate the reaction products and extract the compound (CH 2 OH) 3 -C-COH. Reaction (B) is a Cannizarro reaction, i.e. an aldehyde reacts with an aldehyde, followed by crystallization steps 23 to form an alcohol.
    [0022] In order to concentrate and extract the crystallized phases and in particular the pentaerythritol from the concentration / refrigeration steps 17 are implemented. The crystallization takes place around 5-10 ° C. Preferably, a recrystallization step 19 is carried out to homogenize and purify the structure of the MCP s / s 2. Advantageously, at least the recrystallization step 19 is carried out in the enclosure 1. Even more advantageously, at least the step successive concentration / cooling 17 is also carried out in the chamber 1. Even more advantageously, at least one filtration step 13 or 15 is also carried out in the chamber 1. Even more advantageously, at least one step of mixing the reagents 11 or 12 is carried out in the enclosure 1. A method of manufacturing an energy storage device according to the invention can be implemented for the storage of heat on an urban or industrial heat network. Storage device enclosures 1 can be installed to accumulate heat and meet the morning and evening peak demand on heat networks providing hot water for heating or hot water. According to the transition temperature level of the MCP s / s, the thermal energy storage device is arranged either on the main loop of the boiler at high temperature and high pressure, for example superheated water at 160 ° C. under 20 bar of heat. pressure, or on the secondary loops supplying homes for example at a temperature of 60-80 ° C and under a pressure of 1 bar. In this case, speakers of the order of 10 m3 are disposed in the substations where heat is exchanged between the main loop and the secondary loop. According to the invention, a thermal energy storage device according to the invention with an MCP s / s such as pentaerythritol makes it possible to store between 60 and 100kVVh / m 3 of enclosure. By way of information, an enclosure with an integrated exchanger comprising a solid / liquid MCP such as stearic or sebacic acids makes it possible to store 40 to 50 kVVh / m 3 of enclosure. The manufacturing method according to the invention allows an increase in the amount of energy stored per unit volume, or, for a given amount of heat, decreasing the volume of the enclosure.
    [0023] According to one embodiment, the filling of the chamber 1 and the formation steps of the MCP s / s are preferably carried out at the factory. Once the MCP s / s crystallized in the chamber 1, it is transported to the energy storage place, for example in the substations of a heat network. The exchanger 3 is then connected to the fluidic network to start the operation. This method has the advantage of not having to fill the MCP s / s in the liquid state at the thermal energy storage site. Indeed, it is a complicated and expensive operation because it is necessary each time to bring a melting furnace, melt the MCP s / s in the oven located not far from the enclosure 1, then transfer the liquid in pipes drawn to the speaker and repeat this for each speaker. Example 1 Pentaerythritol Formation Process The reactants are mixed (21) to form a paraformaldehyde suspension. Quicklime (12) is added. Preferably, the temperature is controlled to rise to 50 ° C in 30 minutes, maximum 55 ° C. The mixture takes on a slightly yellow color. Once the addition is complete, stirring can be continued for three hours. The mixture is filtered (13) by gravity. Dilute hydrochloric acid (14) is added to give an acidic reaction. Norite is also added. After five minutes which can be stirred, the solution is filtered (15). The liquor is heated for example on a steam bath at atmospheric pressure and is filtered under a hot pump. The crystals remaining on the filter are washed by suction (17) through wet steam (16). The filtrate is allowed to stand overnight and the first crop of crystals is obtained by filtration. Several successive harvests can be made.
    [0024] 3022617 13 REFERENCES 1. Enclosure 2. MCP s / s 5 3. Heat exchanger 4. Heat transfer fluid inlet 5. Heat transfer fluid outlet 6. Supply pipe 7. Tapping device 10 8. Tube 9. Flotation tank 11. Formaldehyde + mixture Acetaldehyde + water 12. Adding Quicklime 13. Filtration after 3h 15 14. Adding hydrochloric acid + norite 15. Filtration after 5 min 16. Evaporation + Filtration at high temperature 17. Successive concentrations / refrigerations 18. Addition of acid Hydrochloric acid + water 19. Recrystallization 20. Pentaerythritol 21. Mixture of reagents 22. Filtration 23. Crystallization 25
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. Method for producing a thermal energy storage device by at least one solid / solid phase change material (2) comprising a thermal energy storage enclosure (1) containing the at least one phase change material solid / solid (2) and heat exchanging heat exchanger (3) for storing and extracting heat from said solid / solid phase change material (2), immersed in said enclosure (1), characterized in that at least one step of forming the at least one solid / solid phase change material (2) is carried out inside the storage enclosure (1), the at least one forming step comprises at least one crystallization step (23).
    [0002]
    2. Method according to the preceding claim wherein the at least one forming step comprises a concentration step (17) carried out inside the chamber (1) storage.
    [0003]
    3. Method according to any one of the preceding claims wherein the at least one forming step comprises a filtration step (22) performed in the chamber (1) storage.
    [0004]
    4. Method according to any one of the preceding claims wherein the at least one forming step comprises a reagent mixing step (21) is performed in the chamber (1) storage.
    [0005]
    5. Process according to any one of the preceding claims, in which reactants for the formation of the at least one solid / solid phase change material (2) are introduced into the chamber (1) via at least one feed pipe. (6).
    [0006]
    6. Method according to any one of the preceding claims wherein the liquid residues resulting from the formation of the at least one material of the enclosure (1) are extracted by at least one extraction device (7).
    [0007]
    7. Method according to any one of the preceding claims wherein the heat exchanger (3) heat transfer fluid is used to control the temperature inside the enclosure (1) during the formation of the at least one material to solid / solid phase change (2).
    [0008]
    8. Method according to the preceding claim wherein the heat exchanger (3) is configured to control the crystallization of the solid / solid phase change material (2) inside the enclosure (1). 3022617 15
    [0009]
    9. Method according to any one of the preceding claims wherein the at least one solid / solid phase change material (2) is solubilized in a solvent and then introduced into the chamber (1) of storage and then at least one step of crystallization (23) of the solid / solid phase change material (2) is carried out inside the enclosure (1).
    [0010]
    10. Method according to any one of claims comprising a prior step of covering the inner metal walls of the enclosure (1) with a coating material for preventing contact between the at least one solid / solid phase change material. (2) and the metal walls of the enclosure (1).
    [0011]
    11. Method according to any one of the claims comprising a step of doping the at least one solid / solid phase change material (2) carried out in the enclosure (1).
    [0012]
    The process of any of the claims wherein the at least one solid / solid phase change material (2) is pentaerythritol.
    [0013]
    13. A method for producing a thermal energy storage facility on an operating site characterized in that it comprises: - the realization of a thermal energy storage device according to the method of any one Claims 1 to 12. - The transport on an operating site of the realized device whose enclosure (1) is filled with solid / solid phase change material (2); - The connection of the exchanger (3) of the device to the fluidic network to start the storage of thermal energy.
    [0014]
    14. A thermal energy storage device produced by the method according to any one of claims 1 to 12, comprising a chamber (1) for storing thermal energy containing at least one solid / solid phase change material (2). ) and a heat exchanger (3) heat transfer fluid disposed at least partially in the chamber (1) characterized in that it comprises a device for regulating the temperature of the heat transfer fluid 30 so as to be configured for: - in a formation configuration of the at least one solid / solid phase change material (2), controlling the temperature of the coolant to cause crystallization of the solid / solid phase change material (2); In a use configuration, controlling the temperature of the coolant to bring and extract heat from the previously formed solid / solid phase change material (2).
    [0015]
    15. Use of a thermal energy storage device produced by the method according to any one of claims 1 to 12 comprising a chamber (1) for storing thermal energy containing at least one material 5 solid phase change / solid (2) and a heat exchanger (3) heat transfer fluid disposed at least partially in the chamber (1) characterized in that it comprises - a step of using the exchanger (3) to control the crystallizing the solid / solid phase change material in the enclosure (1); A step of using the exchanger to supply heat from the at least one formed solid / solid phase change material (2) or to extract heat from the at least one solid / solid phase change material (2) formed.
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    同族专利:
    公开号 | 公开日
    FR3022617B1|2016-06-24|
    EP2960610B1|2017-05-10|
    US20150369542A1|2015-12-24|
    DK2960610T3|2017-06-19|
    PL2960610T3|2017-10-31|
    EP2960610A1|2015-12-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2002162183A|2000-11-27|2002-06-07|National Institute Of Advanced Industrial & Technology|Heat storage panel and manufacturing method thereof|
    DE202007013140U1|2007-09-18|2009-02-19|Rehau Ag + Co|Latent heat storage medium|
    TWI519268B|2015-04-16|2016-02-01|羅家慶|Spraying heat preservation vapor supplying device and generator apparatus using such device|
    CN105509376B|2016-02-02|2018-03-02|杨国义|The air conditioner cooling cycle system and air conditioner of a kind of high efficient heat exchanging|
    US10605541B1|2016-09-20|2020-03-31|Advanced Cooling Technologies, Inc.|Heat pipe—thermal storage medium based cool storage system|
    CN107101247A|2017-04-27|2017-08-29|江苏科技大学|A kind of portable regenerative apparatus|
    US20190137191A1|2017-11-06|2019-05-09|Johnathan Lawrence|Thermal Capacitor|
    WO2020263954A1|2019-06-26|2020-12-30|University Of Houston System|Systems and methods for full spectrum solar thermal energy harvesting and storage by molecular and phase change material hybrids|
    法律状态:
    2015-06-25| PLFP| Fee payment|Year of fee payment: 2 |
    2015-12-25| PLSC| Publication of the preliminary search report|Effective date: 20151225 |
    2016-06-29| PLFP| Fee payment|Year of fee payment: 3 |
    2017-06-27| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1455581A|FR3022617B1|2014-06-18|2014-06-18|METHOD FOR PRODUCING A DEVICE FOR STORING THERMAL ENERGY BY SOLID PHASE / SOLID PHASE CHANGE MATERIAL|FR1455581A| FR3022617B1|2014-06-18|2014-06-18|METHOD FOR PRODUCING A DEVICE FOR STORING THERMAL ENERGY BY SOLID PHASE / SOLID PHASE CHANGE MATERIAL|
    US14/740,407| US20150369542A1|2014-06-18|2015-06-16|Method of producing a device for storing thermal energy by solid/solid phase change material|
    EP15172232.9A| EP2960610B1|2014-06-18|2015-06-16|Method of producing a thermal energy storage device from a solid/solid phase change material|
    DK15172232.9T| DK2960610T3|2014-06-18|2015-06-16|PROCEDURE FOR MANUFACTURING A THERMAL HEAT STORAGE DEVICE OUT OF A MATERIAL TO CHANGE SOLID / SOLID PHASE|
    PL15172232T| PL2960610T3|2014-06-18|2015-06-16|Method of producing a thermal energy storage device from a solid/solid phase change material|
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