JP2017040415A - Heat storage system - Google Patents

Heat storage system Download PDF

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JP2017040415A
JP2017040415A JP2015161617A JP2015161617A JP2017040415A JP 2017040415 A JP2017040415 A JP 2017040415A JP 2015161617 A JP2015161617 A JP 2015161617A JP 2015161617 A JP2015161617 A JP 2015161617A JP 2017040415 A JP2017040415 A JP 2017040415A
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heat storage
heat
storage material
temperature
medium
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JP6555001B2 (en
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卓哉 布施
Takuya Fuse
卓哉 布施
伸矢 笠松
Shinya Kasamatsu
伸矢 笠松
裕太 才賀
Yuta Saiga
裕太 才賀
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Denso Corp
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Denso Corp
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Priority to JP2015161617A priority Critical patent/JP6555001B2/en
Priority to PCT/JP2016/071516 priority patent/WO2017029942A1/en
Priority to US15/748,683 priority patent/US20190003780A1/en
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    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • 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
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
    • F28F7/02—Blocks traversed by passages for heat-exchange media
    • 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

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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)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a heat storage system capable of eliminating a case for sealing a heat storage material.SOLUTION: A heat storage portion 20 has a heat storage material 40 having a solid first phase when a temperature is higher than a prescribed temperature, and having a solid second phase when the temperature is lower than the prescribed temperature. The heat storage material 40 can exchange heat with a medium, stores the heat from the medium in a heat storage mode, and releases the stored heat in a radiation mode. Thus a solid state can be kept even when the phase change of the heat storage material 40 of the heat storage portion 20 occurs. Accordingly, a case for keeping the shape of the heat storage material 40 can be eliminated.SELECTED DRAWING: Figure 1

Description

本発明は、熱貯蔵システムに関する。   The present invention relates to a heat storage system.

コージェネレーション等のエネルギー変換系においては、熱が余るとき（定常時）や熱が要るとき（始動時）のそれぞれの場面に対し、時空間的ギャップが発生する場合が多い。そのため、例えば、定常時にエネルギー変換部から放出される熱の一部を蓄えておき、始動時など上記のギャップが生じた場合にその蓄えから放熱する技術が知られている。   In an energy conversion system such as cogeneration, a spatiotemporal gap often occurs for each scene when heat is excessive (steady state) and when heat is required (starting). For this reason, for example, a technique is known in which a part of heat released from the energy conversion unit is stored in a steady state and heat is released from the storage when the above gap occurs at the time of start-up.

例えば、蓄熱材として固液相変化材を用いた蓄熱装置が特許文献１で提案されている。蓄熱材は凝固⇔融解間の相変化を利用している。具体的には、蓄熱材をケースに封入し、循環水と蓄熱材とをケースを介して熱を出し入れしている。ケースは、蓄熱時に蓄熱材が固相から液相に相変化するに際し、その液体が流出するのを規制する役割を果たす。   For example, Patent Document 1 proposes a heat storage device using a solid-liquid phase change material as a heat storage material. The heat storage material uses the phase change between solidification and melting. Specifically, a heat storage material is sealed in a case, and heat is taken in and out of the circulating water and the heat storage material through the case. The case serves to regulate the outflow of the liquid when the heat storage material changes from the solid phase to the liquid phase during heat storage.

このような相変化材の蓄熱材を、例えば、コージェネレーションシステムの蓄熱器にも応用することが想定される。   It is assumed that such a phase change material heat storage material is also applied to a heat storage device of a cogeneration system, for example.

特開２０１１−０６８１９０号公報JP 2011-068190 A

しかしながら、上記従来の技術では、ケースが大きな熱抵抗となり、所定の熱出力を得るためには大きな伝熱面積を取る必要があった。その結果、蓄熱槽の体格が巨大化してしまうという問題があった。   However, in the above conventional technique, the case has a large thermal resistance, and it is necessary to take a large heat transfer area in order to obtain a predetermined heat output. As a result, there was a problem that the physique of the heat storage tank became huge.

本発明は上記点に鑑み、蓄熱材を封入するためのケースを不要とすることができる熱貯蔵システムを提供することを目的とする。   An object of this invention is to provide the heat storage system which can make the case for enclosing a thermal storage material unnecessary in view of the said point.

上記目的を達成するため、請求項１に記載の発明では、エネルギー源を他の形態のエネルギーに変換し、エネルギーの変換と同時に所定の媒体を介して熱を放出するエネルギー変換部（１０）を備えている。また、蓄熱モードにおいて媒体から熱を貯蔵すると共に、蓄熱モードとは異なる放熱モードにおいて貯蔵した熱を加熱対象に放出する蓄熱部（２０）を備えている。   In order to achieve the above object, according to the first aspect of the present invention, there is provided an energy conversion unit (10) that converts an energy source into another form of energy and releases heat through a predetermined medium simultaneously with the energy conversion. I have. In addition, a heat storage unit (20) that stores heat from the medium in the heat storage mode and releases heat stored in a heat release mode different from the heat storage mode to a heating target is provided.

蓄熱部は、所定温度よりも高い場合に固体の第１相を呈し、所定温度以下の場合に固体の第２相を呈する蓄熱材（４０）を有して構成されている。そして、蓄熱材は、媒体と相互に熱交換可能であり、蓄熱モードにおいて媒体から熱を貯蔵すると共に、放熱モードにおいて貯蔵した熱を放出することを特徴とする。   The heat storage unit is configured to include a heat storage material (40) that exhibits a solid first phase when the temperature is higher than a predetermined temperature and exhibits a solid second phase when the temperature is equal to or lower than the predetermined temperature. The heat storage material is capable of exchanging heat with the medium, stores heat from the medium in the heat storage mode, and releases the heat stored in the heat dissipation mode.

これによると、蓄熱部の蓄熱材が相変化を起こしても固体の状態が維持される。したがって、蓄熱材の形状を維持するためのケースを不要にすることができる。   According to this, even if the heat storage material of the heat storage unit causes a phase change, the solid state is maintained. Therefore, the case for maintaining the shape of the heat storage material can be made unnecessary.

なお、この欄及び特許請求の範囲で記載した各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。   In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

本発明の第１実施形態に係る熱貯蔵システムの構成を示した図である。It is a figure showing the composition of the heat storage system concerning a 1st embodiment of the present invention. 蓄熱材の相図を示した図である。It is the figure which showed the phase diagram of the thermal storage material. 本発明の第２実施形態に係る熱貯蔵システムの構成を示した図である。It is the figure which showed the structure of the heat storage system which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る蓄熱材の斜視図である。It is a perspective view of the heat storage material which concerns on 2nd Embodiment of this invention. 本発明の第３実施形態に係る蓄熱材の斜視図である。It is a perspective view of the heat storage material which concerns on 3rd Embodiment of this invention. 本発明の第４実施形態に係る蓄熱材の斜視図である。It is a perspective view of the heat storage material which concerns on 4th Embodiment of this invention. 本発明の第５実施形態に係る蓄熱材の斜視図である。It is a perspective view of the heat storage material which concerns on 5th Embodiment of this invention. 本発明の第６実施形態に係る蓄熱材の斜視図である。It is a perspective view of the heat storage material which concerns on 6th Embodiment of this invention. 本発明の第７実施形態に係る蓄熱材の斜視図である。It is a perspective view of the heat storage material which concerns on 7th Embodiment of this invention. 本発明の第８実施形態に係る蓄熱材の斜視図である。It is a perspective view of the heat storage material which concerns on 8th Embodiment of this invention. 本発明の第９実施形態に係る蓄熱材の斜視図である。It is a perspective view of the heat storage material which concerns on 9th Embodiment of this invention.

以下、本発明の実施形態について図に基づいて説明する。なお、以下の各実施形態相互において、互いに同一もしくは均等である部分には、図中、同一符号を付してある。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

（第１実施形態）
以下、本発明の第１実施形態について図を参照して説明する。本実施形態に係る熱貯蔵システムは、熱を貯めてその熱を利用するコージェネレーションシステムに適用される。 (First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. The heat storage system according to the present embodiment is applied to a cogeneration system that stores heat and uses the heat.

図１（ａ）及び図１（ｂ）に示されるように、熱貯蔵システムは、エネルギー変換部１０及び蓄熱部２０を備えて構成されている。エネルギー変換部１０は、エネルギー源を他の形態のエネルギーに変換し、エネルギーの変換と同時に所定の媒体を介して熱を放出するものである。   As shown in FIG. 1A and FIG. 1B, the heat storage system includes an energy conversion unit 10 and a heat storage unit 20. The energy conversion unit 10 converts an energy source into another form of energy, and releases heat through a predetermined medium simultaneously with the energy conversion.

例えば、車両の場合、エネルギー変換部１０はフューエルセルやエンジン等である。エネルギー源は燃料であり、他の形態のエネルギーは駆動力や電力等である。所定の媒体は冷却水や排気ガス等である。   For example, in the case of a vehicle, the energy conversion unit 10 is a fuel cell, an engine, or the like. The energy source is fuel, and other forms of energy are driving force, electric power, and the like. The predetermined medium is cooling water, exhaust gas, or the like.

蓄熱部２０は蓄熱材を有して構成されている。蓄熱材は、媒体と相互に熱交換可能である。蓄熱部２０は、蓄熱モードにおいて媒体から蓄熱材に熱を貯蔵すると共に、蓄熱モードとは異なる放熱モードにおいて蓄熱材に貯蔵した熱を加熱対象に放出するものである。   The heat storage unit 20 includes a heat storage material. The heat storage material can exchange heat with the medium. The heat storage unit 20 stores heat from the medium to the heat storage material in the heat storage mode, and releases heat stored in the heat storage material in a heat release mode different from the heat storage mode to a heating target.

図２に示されるように、蓄熱材は、所定温度よりも高い場合に固体の第１相（ｓ）を呈し、所定温度以下の場合に固体の第２相（ｓ）を呈する材料である。所定温度よりも高い場合が蓄熱モードに対応し、所定温度以下の場合が放熱モードに対応する。そして、蓄熱材は、蓄熱モードにおいて媒体から熱を貯蔵すると共に、放熱モードにおいて貯蔵した熱を放出する。蓄熱材は、蓄熱モード及び放熱モードのサイクルを繰り返す際に固相−固相間相変化を起こし、固体の状態を維持する。   As shown in FIG. 2, the heat storage material is a material that exhibits a solid first phase (s) when the temperature is higher than a predetermined temperature, and exhibits a solid second phase (s) when the temperature is equal to or lower than the predetermined temperature. The case where the temperature is higher than the predetermined temperature corresponds to the heat storage mode, and the case where the temperature is lower than the predetermined temperature corresponds to the heat dissipation mode. The heat storage material stores heat from the medium in the heat storage mode and releases the heat stored in the heat dissipation mode. When the heat storage material repeats the cycle of the heat storage mode and the heat release mode, the heat storage material causes a phase change between the solid phases and maintains the solid state.

蓄熱材は、例えば、強相関材料である二酸化バナジウム（ＶＯ２）によって構成されている。所定温度すなわち相転移温度は、二酸化バナジウムに対する添加物のドープ量によって調整されている。例えば、添加物のドープ量が多い場合よりも少ない場合の方が所定温度は高く設定される。 The heat storage material is made of, for example, vanadium dioxide (VO 2 ), which is a strongly correlated material. The predetermined temperature, that is, the phase transition temperature is adjusted by the doping amount of the additive with respect to vanadium dioxide. For example, the predetermined temperature is set higher when the amount of the additive is less than when the additive is large.

上記の構成により、図１（ａ）では、媒体である冷却水の温度が所定温度よりも高い場合に蓄熱材に熱が貯蔵され、蓄熱材の温度が所定温度より低くなると蓄熱材から放熱される。一方、図１（ｂ）では、媒体である排気ガスの温度が所定温度よりも高い場合に蓄熱材に熱が貯蔵され、蓄熱材の温度が所定温度より低くなると蓄熱材から放熱される。   With the above configuration, in FIG. 1A, heat is stored in the heat storage material when the temperature of the cooling water that is the medium is higher than the predetermined temperature, and is radiated from the heat storage material when the temperature of the heat storage material becomes lower than the predetermined temperature. The On the other hand, in FIG.1 (b), when the temperature of the exhaust gas which is a medium is higher than predetermined temperature, heat is stored in a thermal storage material, and if the temperature of a thermal storage material becomes lower than predetermined temperature, it will thermally radiate from a thermal storage material.

以上説明したように、本実施形態では、固相−固相の相変化を起こす蓄熱材を用いて蓄熱部２０を構成したことが特徴となっている。これにより、蓄熱材は固体の状態を維持して相変化を起こすので、蓄熱材の形状を維持するためのケースを不要にすることができる。したがって、ケースの熱抵抗の影響を低減することができ、ひいては蓄熱部２０の巨大化を抑制することができる。   As described above, the present embodiment is characterized in that the heat storage unit 20 is configured using a heat storage material that causes a solid-solid phase change. Thereby, since a heat storage material maintains a solid state and raise | generates a phase change, the case for maintaining the shape of a heat storage material can be made unnecessary. Therefore, the influence of the thermal resistance of the case can be reduced, and consequently the enlarging of the heat storage unit 20 can be suppressed.

（第２実施形態）
本実施形態では、第１実施形態と異なる部分について説明する。本実施形態では、熱貯蔵システムとして蓄熱槽を例に説明する。 (Second Embodiment)
In the present embodiment, parts different from the first embodiment will be described. In the present embodiment, a heat storage tank will be described as an example of the heat storage system.

図３に示されるように、蓄熱槽３０は、一方の配管３１を介して本体３２の下部に循環水が導入され、本体３２の上部から他方の配管３３を介して循環水が排出される構成になっている。また、利用水が本体３２の下部を出入りする構成になっている。蓄熱槽３０の場合、エネルギー変換部１０は温水を作る温水器等である。エネルギー源は電気であり、他の形態のエネルギーは熱である。所定の媒体は循環水である。   As shown in FIG. 3, the heat storage tank 30 is configured such that circulating water is introduced into the lower part of the main body 32 through one pipe 31 and the circulating water is discharged from the upper part of the main body 32 through the other pipe 33. It has become. Further, the use water is configured to enter and exit the lower portion of the main body 32. In the case of the heat storage tank 30, the energy conversion part 10 is a water heater etc. which make warm water. The energy source is electricity and the other form of energy is heat. The predetermined medium is circulating water.

そして、蓄熱材は、蓄熱槽３０の本体３２に収容されている。図４に示されるように、蓄熱材４０は、ブロック状に構成されている。また、蓄熱材４０は、一方向に沿って形成された複数の貫通孔４１を有している。すなわち、蓄熱材４０は、フロースルーハニカム構造を有して構成されている。複数の貫通孔４１は、開口部が蓄熱材４０の端面に例えば正方配列されている。なお、貫通孔４１の開口形状は四角形状に限られず、多角形、円形、楕円形でも構わない。   The heat storage material is accommodated in the main body 32 of the heat storage tank 30. As shown in FIG. 4, the heat storage material 40 is configured in a block shape. Moreover, the heat storage material 40 has a plurality of through holes 41 formed along one direction. That is, the heat storage material 40 is configured to have a flow-through honeycomb structure. The openings of the plurality of through holes 41 are, for example, squarely arranged on the end surface of the heat storage material 40. Note that the opening shape of the through hole 41 is not limited to a quadrangular shape, and may be a polygonal shape, a circular shape, or an elliptical shape.

したがって、蓄熱材４０は循環水が外壁面や複数の貫通孔４１を通過する際に、循環水の熱を蓄熱したり循環水に放熱したりする。複数の貫通孔４１が設けられていることで蓄熱材４０の表面積を大きくすることができる。このため、蓄熱材４０の伝熱性を向上させることができる。また、循環水を整流することができるので、設計値通りの蓄熱量を得ることができる。   Therefore, when the circulating water passes through the outer wall surface or the plurality of through holes 41, the heat storage material 40 stores heat of the circulating water or dissipates heat to the circulating water. The surface area of the heat storage material 40 can be increased by providing the plurality of through holes 41. For this reason, the heat transfer property of the heat storage material 40 can be improved. In addition, since the circulating water can be rectified, a heat storage amount as designed can be obtained.

（第３実施形態）
本実施形態では、第２実施形態と異なる部分について説明する。本実施形態では、図５に示されるように、蓄熱材４０の複数の貫通孔４１は、開口部が蓄熱材４０の端面に例えば六方格子状に配列されている。これにより、貫通孔４１が設けられた蓄熱材４０の強度を確保することができる。 (Third embodiment)
In the present embodiment, parts different from the second embodiment will be described. In the present embodiment, as shown in FIG. 5, the openings of the plurality of through holes 41 of the heat storage material 40 are arranged in an end face of the heat storage material 40 in a hexagonal lattice shape, for example. Thereby, the intensity | strength of the thermal storage material 40 in which the through-hole 41 was provided is securable.

（第４実施形態）
本実施形態では、第２、第３実施形態と異なる部分について説明する。図６に示されるように、蓄熱材４０の複数の貫通孔４１は、開口部が蓄熱材４０の端面に例えばフィボナッチ状に配列されている。これにより、蓄熱材４０の強度と表面積の確保を両立することができる。 (Fourth embodiment)
In the present embodiment, parts different from the second and third embodiments will be described. As shown in FIG. 6, the openings of the plurality of through holes 41 of the heat storage material 40 are arranged in, for example, a Fibonacci shape on the end surface of the heat storage material 40. Thereby, ensuring of the intensity | strength and surface area of the thermal storage material 40 can be made compatible.

（第５実施形態）
本実施形態では、第２〜第４実施形態と異なる部分について説明する。図７に示されるように、蓄熱材４０は、複数のブロック４２が所定の隙間を持って積層されたパックヘッド構造を有している。 (Fifth embodiment)
In the present embodiment, parts different from the second to fourth embodiments will be described. As shown in FIG. 7, the heat storage material 40 has a pack head structure in which a plurality of blocks 42 are stacked with a predetermined gap.

ブロック４２の形状は、例えば直方体である。なお、ブロック４２の形状は、球状（ビーズ状）やレンズ状等でも良い。ブロック４２が球状の場合、アスペクト比を調整することで隙間を制御することができる。   The shape of the block 42 is a rectangular parallelepiped, for example. The block 42 may have a spherical shape (bead shape), a lens shape, or the like. When the block 42 is spherical, the gap can be controlled by adjusting the aspect ratio.

（第６実施形態）
本実施形態では、第５実施形態と異なる部分について説明する。図８に示されるように、蓄熱材４０は、櫛形のブロック４２が組み合わされて構成されている。これにより、蓄熱材４０の表面積が大きくなるので、蓄熱材４０の伝熱性を向上させることができる。なお、図７に示された一対の櫛形の蓄熱材４０を複数並べても良い。 (Sixth embodiment)
In the present embodiment, parts different from the fifth embodiment will be described. As shown in FIG. 8, the heat storage material 40 is configured by combining comb-shaped blocks 42. Thereby, since the surface area of the heat storage material 40 becomes large, the heat transfer property of the heat storage material 40 can be improved. Note that a plurality of the pair of comb-shaped heat storage materials 40 shown in FIG. 7 may be arranged.

（第７実施形態）
本実施形態では、第２〜第６実施形態と異なる部分について説明する。図９に示されるように、蓄熱材４０は、複数のプレート４３が所定の隙間を持って配置されたプレート構造を有している。これにより、蓄熱材４０を作りやすいというメリットがある。 (Seventh embodiment)
In the present embodiment, parts different from the second to sixth embodiments will be described. As shown in FIG. 9, the heat storage material 40 has a plate structure in which a plurality of plates 43 are arranged with a predetermined gap. Thereby, there exists an advantage that it is easy to make the thermal storage material 40. FIG.

（第８実施形態）
本実施形態では、第７実施形態と異なる部分について説明する。図１０に示されるように、蓄熱材４０を構成するプレート４３は、波状に形成されていても良い。これにより、蓄熱材４０の表面積を大きくすることができる。 (Eighth embodiment)
In the present embodiment, parts different from the seventh embodiment will be described. As FIG. 10 shows, the plate 43 which comprises the thermal storage material 40 may be formed in the wave shape. Thereby, the surface area of the heat storage material 40 can be enlarged.

（第９実施形態）
本実施形態では、第７実施形態と異なる部分について説明する。図１１に示されるように、蓄熱材４０を構成するプレート４３は、複数のパンチ穴４４が形成されていても良い。これにより、蓄熱材４０の表面積を大きくすることができる。また、循環水を隣のプレート４３側に移動させることができる。 (Ninth embodiment)
In the present embodiment, parts different from the seventh embodiment will be described. As shown in FIG. 11, the plate 43 constituting the heat storage material 40 may have a plurality of punch holes 44 formed therein. Thereby, the surface area of the heat storage material 40 can be enlarged. Moreover, circulating water can be moved to the adjacent plate 43 side.

（他の実施形態）
上記各実施形態で示された熱貯蔵システムの構成は一例であり、上記で示した構成に限定されることなく、本発明を実現できる他の構成とすることもできる。例えば、熱貯蔵システムは、車両や温水器等に適用される場合に限られない。また、蓄熱材４０の形状は上記以外の他の形状を採用しても構わない。 (Other embodiments)
The configuration of the heat storage system shown in each of the above embodiments is an example, and the present invention is not limited to the configuration shown above, and may be another configuration that can realize the present invention. For example, the heat storage system is not limited to being applied to a vehicle, a water heater, or the like. Moreover, you may employ | adopt shapes other than the above for the shape of the thermal storage material 40. FIG.

１０ エネルギー変換部
２０ 蓄熱部
４０ 蓄熱材 10 energy conversion unit 20 heat storage unit 40 heat storage material

Claims (4)

エネルギー源を他の形態のエネルギーに変換し、前記エネルギーの変換と同時に所定の媒体を介して熱を放出するエネルギー変換部（１０）と、
蓄熱モードにおいて前記媒体から熱を貯蔵すると共に、前記蓄熱モードとは異なる放熱モードにおいて前記貯蔵した熱を加熱対象に放出する蓄熱部（２０）と、
を備え、
前記蓄熱部（２０）は、所定温度よりも高い場合に固体の第１相を呈し、前記所定温度以下の場合に固体の第２相を呈する蓄熱材（４０）を有して構成されており、
前記蓄熱材は、前記媒体と相互に熱交換可能であり、前記蓄熱モードにおいて前記媒体から熱を貯蔵すると共に、前記放熱モードにおいて前記貯蔵した熱を放出することを特徴とする熱貯蔵システム。 An energy conversion unit (10) that converts an energy source into another form of energy and releases heat through a predetermined medium simultaneously with the energy conversion;
A heat storage unit (20) for storing heat from the medium in the heat storage mode and releasing the stored heat to a heating target in a heat release mode different from the heat storage mode;
With
The heat storage section (20) has a heat storage material (40) that exhibits a solid first phase when the temperature is higher than a predetermined temperature and exhibits a solid second phase when the temperature is equal to or lower than the predetermined temperature. ,
The heat storage material is capable of exchanging heat with the medium, stores heat from the medium in the heat storage mode, and releases the stored heat in the heat dissipation mode. 前記蓄熱材は、一方向に沿って形成された複数の貫通孔（４１）が設けられたフロースルーハニカム構造を有して構成されていることを特徴とする請求項１に記載の熱貯蔵システム。   The heat storage system according to claim 1, wherein the heat storage material has a flow-through honeycomb structure provided with a plurality of through holes (41) formed along one direction. . 前記蓄熱材は、複数のブロック（４２）が所定の隙間を持って積層されたパックヘッド構造を有して構成されていることを特徴とする請求項１に記載の熱貯蔵システム。   The heat storage system according to claim 1, wherein the heat storage material has a pack head structure in which a plurality of blocks (42) are stacked with a predetermined gap. 前記蓄熱材は、複数のプレート（４３）が所定の隙間を持って配置されたプレート構造を有して構成されていることを特徴とする請求項１に記載の熱貯蔵システム。   The heat storage system according to claim 1, wherein the heat storage material has a plate structure in which a plurality of plates (43) are arranged with a predetermined gap.
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