JPS58215481A - Heat storage material - Google Patents

Heat storage material

Info

Publication number
JPS58215481A
JPS58215481A JP9764982A JP9764982A JPS58215481A JP S58215481 A JPS58215481 A JP S58215481A JP 9764982 A JP9764982 A JP 9764982A JP 9764982 A JP9764982 A JP 9764982A JP S58215481 A JPS58215481 A JP S58215481A
Authority
JP
Japan
Prior art keywords
heat storage
storage material
sulfate
ammonium
aluminum
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.)
Granted
Application number
JP9764982A
Other languages
Japanese (ja)
Other versions
JPH0413394B2 (en
Inventor
Keiichi Koike
小池 敬一
Michio Yanatori
梁取 美智雄
Seigo Miyamoto
宮本 誠吾
Hideaki Kanbara
秀明 蒲原
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9764982A priority Critical patent/JPS58215481A/en
Publication of JPS58215481A publication Critical patent/JPS58215481A/en
Publication of JPH0413394B2 publication Critical patent/JPH0413394B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To provide a latent heat storage material containing aluminum ammonium sulfate and aluminum potassium sulfate and having melting and freezing points that can be controlled to desired temperatures between 45 and 90 deg.C. CONSTITUTION:A heat storage substance with a melting point of 60-90 deg.C is prepared by blending aluminum ammonium sulfate [ammonium alum; (NH4)Al(SO4)2.12H2O] and aluminum potassium sulfate [potash alum; KAl(SO4)2. 12H2O]to produce a mixture with an eutectic composition (48.86wt% ammonium alum and 51.14wt% potash alum). The heat storage material is obtained by adding zinc sulfate (ZnSO4.7H2O) or magnesium sulfate (MgSO4.7H2O) to the above heat storage substance. When a nucleator is added, the heat storage material becomes freed from overcooling and performs heat storage and release within a given narrow temperature range. The nucleator includes phthalic anhydride, benzoic acid, salicylic acid, etc.

Description

【発明の詳細な説明】 本発明は太陽熱利用あるいは排熱利用などの省エネルギ
ーに効果のある45tZ’〜90′Cの範囲に融点を有
する蓄熱材料に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat storage material having a melting point in the range of 45tZ' to 90'C, which is effective for energy saving such as solar heat utilization or waste heat utilization.

太陽熱、工業排熱を利用する際、そのエネルギーを物質
の融解の際の潜熱として蓄熱し、凝固の際に放出させる
いわゆる潜熱蓄熱材料はエネルギーの貯蔵密度が大きく
エネルギー利用上効果が大きい。この蓄熱材料は太陽熱
、排熱などを融解の際の潜熱として蓄熱し、これを用い
て多量の温風あるいは温水を得る目的に適している。
When utilizing solar heat or industrial waste heat, so-called latent heat storage materials, which store the energy as latent heat during melting of a substance and release it during solidification, have a large energy storage density and are highly effective in terms of energy utilization. This heat storage material is suitable for storing solar heat, waste heat, etc. as latent heat during melting, and using this to obtain a large amount of hot air or hot water.

現在潜熱蓄熱行別とL7て塩化カルシウム6水塩(Ca
C1,* 61T、(’) *融点29.2 t’? 
)が最もよく知られている。この塩化カルシウム蓄熱材
は従来暖房用熱源あるいし、1、ヒートポンプ用熱源と
して使用されている。1.かし多m゛の温風を得る装置
(暖房あるいは乾燥用)または40〜65tTの温湯を
供給する装置(給湯装置)に使用する目的に対しては4
5〜90Cの範囲に融点を有する蓄熱材料が必要である
Currently, the latent heat storage line and L7 are calcium chloride hexahydrate (Ca
C1, * 61T, (') *Melting point 29.2 t'?
) is the best known. This calcium chloride heat storage material has conventionally been used as a heat source for heating or as a heat source for heat pumps. 1. 4 for the purpose of use in equipment that obtains hot air with a volume of 2 m (for heating or drying) or equipment that supplies hot water of 40 to 65 tT (water heating equipment).
A heat storage material with a melting point in the range of 5-90C is required.

このような温度範囲に融点を有する蓄熱材料としては例
えばチオ硫酸ナトリウム5水塩(N at St Ox
 −5II! 0 )に発核材を添加した融点48、5
11’の蓄熱(4がある。この蓄熱材は48.51r附
近で融解−凝固し蓄熱−放熱が安定して行われるが、4
8.5r:l′J、夕1の霊1n′で蓄熱−放熱を行う
目的に対しては適尚でない欠点がある。
As a heat storage material having a melting point in such a temperature range, for example, sodium thiosulfate pentahydrate (N at St Ox
-5II! 0) with nucleating material added melting point 48,5
11' heat storage (there is 4. This heat storage material melts and solidifies around 48.51r, and heat storage and heat radiation are performed stably, but 4.
8.5r: l'J, there is a drawback that it is not suitable for the purpose of heat storage and heat radiation in the evening 1 spirit 1n'.

本発明t:I: TMt酸アルミニウムアンモニウム〔
アンモニウム明げん、(NIL)At(804)t・1
2 L O:]と硫酸アルミニウムカリウム、〔カリウ
ム明ばん、KA t(S 041 t・12o、o”J
を共融点組成(アンモニウム明ばん48.86重量%、
カリウム明ばん51.14重量%)に混合することによ
り融点60〜90Cの蓄熱材を得ること、さらに融点6
0tl:の蓄熱材に硫酸亜鉛(ZnSO,・7H20)
または硫酸マグネシウム(M g S 04・7 H2
O)を添加することにより融点45〜60tTの蓄熱材
を得ることを目的としている。
Present invention t:I: TMt aluminum ammonium acid [
Ammonium dawn, (NIL) At (804) t・1
2 L O:] and potassium aluminum sulfate, [potassium alum, KA t(S 041 t・12o, o”J
The eutectic point composition (ammonium alum 48.86% by weight,
To obtain a heat storage material with a melting point of 60 to 90C by mixing it with potassium alum (51.14% by weight), and further to obtain a heat storage material with a melting point of 60C.
Zinc sulfate (ZnSO, 7H20) as heat storage material for 0tl:
Or magnesium sulfate (M g S 04.7 H2
The purpose is to obtain a heat storage material with a melting point of 45 to 60 tT by adding O).

硫酸アルミニウムアンモニウム[(NH4)At(SO
+)z・12)T2O,融点9a、5tlと硫酸アルミ
ニウムカリウム(KA4(804)t 12H20、融
点91U)’に混合すると第1図に示すように融点が変
化し、(NH,) A、t (So、 )212H20
とKAt(S04)t・12H20をモル比1:1に配
合した混合物[NH,A L (S 0412・12I
(2048,8%。
Ammonium aluminum sulfate [(NH4)At(SO
+)z・12) When T2O, melting point 9a, 5tl is mixed with potassium aluminum sulfate (KA4(804)t 12H20, melting point 91U)', the melting point changes as shown in Figure 1, and (NH,) A, t (So, )212H20
and KAt(S04)t・12H20 in a molar ratio of 1:1 [NH,A L (S 0412・12I
(2048,8%.

KAL(SO4)t・12H2051,1%〕は融点6
0Cを有し、融解−凝固を繰返しても融点が変化しない
ことを見出した。
KAL(SO4)t・12H2051,1%] has a melting point of 6
0C, and the melting point did not change even after repeated melting and solidification.

またアンモニウム明ぽんとカリウム明ばんのモル比1;
1附近の組成物に硫酸マグネシウム(MgSO,−7)
r、O)、硫酸亜鉛(ZnSO4・711.01をll
i pHまたれIi合して添加すると凝固点が低下し、
45〜60Cの間に#同点を有する蓄熱材が得られる。
Also, the molar ratio of ammonium alum and potassium alum is 1;
Magnesium sulfate (MgSO, -7) in the composition around 1
r, O), zinc sulfate (ZnSO4・711.01
When added in combination with i pH and Ii, the freezing point decreases,
A heat storage material having a # tie point between 45 and 60C is obtained.

アンモニウム明げんとカリウム明ばんのモル比1:1の
共融A組成の重合物(アンモニウム明ばん48.86%
、カリウム明げん51.14%)に硫酸マグネシウム(
Mg8(1,−71TtO)及び硫酸亜鉛(Z n 8
04・711.(月をそれぞれ学独に添加した場合の凝
固点の1降下をwJ2図に示す。また硫酸マグネシウム
と硫酸亜鉛’e’m合して添加する場合には単独添加の
際の飴を加Wした凝固点降下を示すことをたしかめた。
Polymer of eutectic A composition with a molar ratio of ammonium alum and potassium alum of 1:1 (ammonium alum 48.86%
, potassium chloride 51.14%) and magnesium sulfate (
Mg8(1,-71TtO) and zinc sulfate (Zn8
04.711. (Fig. wJ2 shows the 1 drop in the freezing point when adding each moon to Gakudoku. Also, when magnesium sulfate and zinc sulfate are added together, the freezing point of the candy when added alone is I made sure to indicate the descent.

硫f’、lJvグネシウム(MgSn4−70,0)と
硫酸亜鉛(ZnSO4・7 IT、 01の流力11け
アンモニウム明ぽんとカリウム明げんの配合比によって
制約を受けることはない。
Sulfur f', lJvgnesium (MgSn4-70.0) and zinc sulfate (ZnSO4.7 IT, 01 fluidity 11 ke) There are no restrictions on the blending ratio of ammonium alk and potassium ame.

60r以下の凝固点余得る目的にはアンモニウム明ぽん
とカリウノ、明げんのモル比を0.5〜2.0の間の組
hy物を用いることが実111−ヒ有効である。
For the purpose of obtaining a freezing point of 60r or less, it is effective to use a combination of ammonium aerobic, karyuno, and aerobacter in which the molar ratio is between 0.5 and 2.0.

このような組成f選定すると凝固点と融点の温度差が少
なくなり一足の狭い温度範囲で融解−凝固する蓄熱材が
得られ、蓄熱槽、熱交換器などの伝熱設計が容易になる
利点がある。
When such a composition is selected, the temperature difference between the freezing point and the melting point is reduced, and a heat storage material that melts and solidifies in a narrow temperature range can be obtained, which has the advantage of facilitating the heat transfer design of heat storage tanks, heat exchangers, etc. .

本発明の蓄熱材料は過冷を生ずることは少ないが発核材
を添加して、過冷を確実に防止し、一定の狭い温度範囲
で蓄熱及び放熱を行わせることができる。
Although the heat storage material of the present invention rarely causes supercooling, by adding a nucleating material, supercooling can be reliably prevented and heat storage and heat dissipation can be performed within a certain narrow temperature range.

このような発核材として結晶性の無機化合物である無水
フタル酸、安息香酸およびその誘導体。
Such nucleating materials include crystalline inorganic compounds such as phthalic anhydride, benzoic acid, and derivatives thereof.

フマル酸、サリチル酸、メラミンが有効である。Fumaric acid, salicylic acid, and melamine are effective.

これらの発核材を0.01〜2%の範囲で添加した結果
、これらの物質はいずれも良好な発核作用を示し、蓄熱
材の過冷を確実に防止する効果があることを確認した。
As a result of adding these nucleating materials in the range of 0.01 to 2%, it was confirmed that all of these substances exhibited good nucleating effects and were effective in reliably preventing overcooling of the heat storage material. .

本発明の蓄熱材は第1図から明らかなように硫酸アルミ
ニウムアンモニウム[(NH,) At(SQ、)t・
12HtO]  ; 1〜95部、硫酸アルミニウムカ
リウム[KA l (S 04 ) t・12H20;
5〜99部の範囲で60〜90Cの融点を有し、この融
点は蓄熱材の組成によって変化させることができる。
As is clear from FIG. 1, the heat storage material of the present invention is aluminum ammonium sulfate [(NH,) At(SQ,)t.
12HtO]; 1 to 95 parts, potassium aluminum sulfate [KA l (S 04 ) t·12H20;
It has a melting point of 60 to 90C in a range of 5 to 99 parts, and this melting point can be changed depending on the composition of the heat storage material.

この範囲の組成物は太陽熱や工業排熱から熱を吸収して
蓄熱し、給湯用の熱源とする場合の蓄熱材として適し、
例えば55?T以−にの温湯を供給することができる。
The composition in this range absorbs and stores heat from solar heat and industrial waste heat, and is suitable as a heat storage material when used as a heat source for hot water supply.
For example, 55? It is possible to supply hot water over T.

捷だN114A、t (S 04 ) 2 働12H,
0;  30〜62 音IN 、   KA 、l  
(5()4  )1   ・ 12H20,38〜70
部からなる組成物に硫酸亜鉛(7,nSO4・711、
O)及び硫酸マクネシウム(MgSO,・71T、0)
を牟独あるいt、I 複合し7て添加することにより覇
点が60′c以下に低下する。また図は(NT14 )
 AL (SOt )i 121TtOH4B、 8%
KAt(804)t・1.211.0151.1%の組
成物にM g S O,・711.D及び7、n S 
04・71−7.0を0〜40%の範囲で添加l、fr
場合の融点変化を示し、znso4” 711!OI4
0%の添加により45.5C。
Sword N114A, t (S 04) 2 work 12H,
0; 30-62 sounds IN, KA, l
(5()4)1 ・12H20,38~70
Zinc sulfate (7,nSO4・711,
O) and magnesium sulfate (MgSO, 71T, 0)
By adding 7 in combination or in combination with t and I, the summation point decreases to 60'c or less. Also, the figure is (NT14)
AL (SOt)i 121TtOH4B, 8%
KAt(804)t·1.211.015 1.1% of the composition contains M g SO,·711. D and 7, n S
Addition of 04.71-7.0 in the range of 0 to 40% l, fr
znso4” 711!OI4
45.5C with 0% addition.

M g 804−711.0  寥40%の添加により
43rの融点が得られることを示している。この範囲の
蓄熱材は太陽熱や工業4J1熱を蓄熱し、暖房用の熱源
とする場合の蓄熱j4とl〜で適し、例えば40′C以
上の温湯を取出し、床、壁面などに組込んだ導管中に流
して暖房を行なうことができる。
It is shown that a melting point of 43r can be obtained by adding 40% of M g 804-711.0. Heat storage materials in this range are suitable for storing solar heat or industrial 4J1 heat and using it as a heat source for heating.For example, it is suitable for heat storage j4 and l~ when hot water of 40'C or more is taken out and conduits built into floors, walls, etc. It can be heated by flowing water inside.

本発明に用いた硫酸アルミニウムアンモニウム(NH,
)At(SQ4)2−12H20は59.9 cal/
g(97,8cal/cm3)の蓄熱量を有し、捷り硫
2フルミニウムカリウム(Kl!、(SQ、)t・12
H20)は55.5 cat/g(97,1caUcr
n’lの蓄熱量を有する、この両者を混合した組成物の
蓄熱量は単体の蓄熱量の相加荷重平均値に極めて近い値
を有する。
Aluminum ammonium sulfate (NH,
) At(SQ4)2-12H20 is 59.9 cal/
It has a heat storage capacity of g (97.8 cal/cm3), and is made of sulfur difluminium potassium (Kl!, (SQ,)t・12
H20) is 55.5 cat/g (97.1caUcr
The heat storage amount of a composition that is a mixture of the two, which has a heat storage amount of n'l, has a value that is extremely close to the additive weighted average value of the heat storage amount of the single component.

以上説明したように、本発明の蓄熱材は組成によって融
点、凝固点を43〜90Cの間の任意の温度に調整する
ことができるため伝熱設計が容易であり、給湯用あるい
は暖房用として活用範囲が広い。
As explained above, the heat storage material of the present invention can be easily designed for heat transfer because its melting point and freezing point can be adjusted to any temperature between 43 and 90C depending on the composition, and it can be used for hot water supply or space heating. is wide.

またこの蓄熱材は化学的に安定で、繰返し使用しても変
質せず、金属やプラスチイック容器を腐食せず、不燃性
で公害発生のおそれがなく価格も低廉で、エネルギーの
有効利用に極めて有効である。
In addition, this heat storage material is chemically stable, does not deteriorate even after repeated use, does not corrode metal or plastic containers, is nonflammable, poses no risk of pollution, is inexpensive, and is extremely effective in energy use. It is valid.

【図面の簡単な説明】 第1図は硫酸アルミニウムアンモニウムC(NH4) 
At(804)t・12 I20 )と硫酸アルミニウ
ムカリウム[KAt(804)1・12H,0:)から
なる蓄熱材の組成と融点(#固点)の関係を示す図、第
2図は第1図の(Nlr< )t Al(804It・
12112048、8%、 KA、/、 (804)1
・12H,051,1%の組成物にM gS O、・7
H,OおよびZn5r)、・71T、0  をそれぞね
」F独に添加した場合の融点(#固点)の変化を示す図
である。 某 j 区
[Brief explanation of the drawings] Figure 1 shows aluminum ammonium sulfate C (NH4)
Figure 2 shows the relationship between the composition and melting point (#solid point) of a heat storage material consisting of At(804)t・12I20 ) and potassium aluminum sulfate [KAt(804)1・12H,0:). (Nlr< )tAl(804It・
12112048, 8%, KA, /, (804)1
・12H,051,1% composition with M gSO, ・7
FIG. 3 is a diagram showing changes in melting point (#solid point) when H, O and Zn5r), .71T,0 are respectively added to "F". certain ward

Claims (1)

【特許請求の範囲】 1、硫酸アルミニウムアンモニウムと硫酸アルミニウム
カリウムを含有することを特徴とする蓄熱材料。 2、硫酸アルミニウムアンモニウム12水塩(NH4)
 A t (804) t・12H,01〜95部。 硫酸アルミニウムカリウム12水塩KAt(SO+)t
・12H20;5〜99部からなることを特徴とする特
許請求の範囲第1項記載の蓄熱材料。 3、硫酸アルミニウムアンモニウム12水塩;30〜6
2部、硫酸アルミニウムカリウム12水塩;38〜70
部からなることを特徴とする特許請求の範囲第1項記載
の蓄熱材料。 4、硫酸亜鉛、硫酸マグネシウムを単独または複合して
添加すること全特徴とする特許請求の範囲第1項記載の
蓄熱材料。 5、硫酸亜鉛(ZnSO4−7H,O)または硫酸マグ
ネシウム(MgS04・7 H,0)を単独または複合
して1〜40%の範囲で添加することを特徴とする特許
請求の範囲第4項記載の蓄熱材料。 6、 発核材として結晶性の有機化合物である無水フタ
ル酸、安息香酸およびその誘導体、フマル酸、サリチル
酸、メラミンの群の中から選ばれた1種以上の物質を添
加することを特徴とする特許請求の範囲第1項力いし第
5項記載のいずれかの蓄熱材料。
[Claims] 1. A heat storage material containing ammonium aluminum sulfate and potassium aluminum sulfate. 2. Aluminum ammonium sulfate dodecahydrate (NH4)
A t (804) t・12H, 01-95 parts. Potassium aluminum sulfate dodecahydrate KAt(SO+)t
The heat storage material according to claim 1, characterized in that it consists of 5 to 99 parts of 12H20. 3. Aluminum ammonium sulfate dodecahydrate; 30-6
2 parts, potassium aluminum sulfate dodecahydrate; 38-70
The heat storage material according to claim 1, characterized in that the heat storage material comprises: 4. The heat storage material according to claim 1, characterized in that zinc sulfate and magnesium sulfate are added singly or in combination. 5. Claim 4, characterized in that zinc sulfate (ZnSO4-7H,O) or magnesium sulfate (MgSO4.7H,0) is added alone or in combination in a range of 1 to 40%. heat storage material. 6. It is characterized by adding one or more substances selected from the group of crystalline organic compounds such as phthalic anhydride, benzoic acid and its derivatives, fumaric acid, salicylic acid, and melamine as a nucleating material. A heat storage material according to any one of claims 1 to 5.
JP9764982A 1982-06-09 1982-06-09 Heat storage material Granted JPS58215481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9764982A JPS58215481A (en) 1982-06-09 1982-06-09 Heat storage material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9764982A JPS58215481A (en) 1982-06-09 1982-06-09 Heat storage material

Publications (2)

Publication Number Publication Date
JPS58215481A true JPS58215481A (en) 1983-12-14
JPH0413394B2 JPH0413394B2 (en) 1992-03-09

Family

ID=14197939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9764982A Granted JPS58215481A (en) 1982-06-09 1982-06-09 Heat storage material

Country Status (1)

Country Link
JP (1) JPS58215481A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
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JP2006038328A (en) * 2004-07-27 2006-02-09 Inoac Corp Heat storage device
JP2014189582A (en) * 2013-03-26 2014-10-06 Toppan Forms Co Ltd Cold retaining tool
WO2015079891A1 (en) * 2013-11-26 2015-06-04 シャープ株式会社 Heat storage material, and heat storage member, storage container, transportation/storage container, construction material, and architectural structure using same
CN109054763A (en) * 2018-08-14 2018-12-21 南京金合能源材料有限公司 A kind of hydrated sulfate composite phase-change material and preparation method thereof
JP2020128474A (en) * 2019-02-08 2020-08-27 東邦瓦斯株式会社 Latent heat storage material composition
WO2022158484A1 (en) * 2021-01-25 2022-07-28 株式会社カネカ Inorganic latent heat storage material composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545730A (en) * 1978-09-26 1980-03-31 Mitsubishi Electric Corp Heat storage material

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JPS5545730A (en) * 1978-09-26 1980-03-31 Mitsubishi Electric Corp Heat storage material

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JP2006038328A (en) * 2004-07-27 2006-02-09 Inoac Corp Heat storage device
JP4606082B2 (en) * 2004-07-27 2011-01-05 株式会社イノアックコーポレーション Heat storage device
JP2014189582A (en) * 2013-03-26 2014-10-06 Toppan Forms Co Ltd Cold retaining tool
WO2015079891A1 (en) * 2013-11-26 2015-06-04 シャープ株式会社 Heat storage material, and heat storage member, storage container, transportation/storage container, construction material, and architectural structure using same
JPWO2015079891A1 (en) * 2013-11-26 2017-03-16 シャープ株式会社 Heat storage material, heat storage member using the same, storage container, transport / storage container, building material, building
CN109054763A (en) * 2018-08-14 2018-12-21 南京金合能源材料有限公司 A kind of hydrated sulfate composite phase-change material and preparation method thereof
JP2020128474A (en) * 2019-02-08 2020-08-27 東邦瓦斯株式会社 Latent heat storage material composition
WO2022158484A1 (en) * 2021-01-25 2022-07-28 株式会社カネカ Inorganic latent heat storage material composition

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