JPS6228995B2 - - Google Patents
Info
- Publication number
- JPS6228995B2 JPS6228995B2 JP56164165A JP16416581A JPS6228995B2 JP S6228995 B2 JPS6228995 B2 JP S6228995B2 JP 56164165 A JP56164165 A JP 56164165A JP 16416581 A JP16416581 A JP 16416581A JP S6228995 B2 JPS6228995 B2 JP S6228995B2
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- heat
- nucleating
- sodium thiosulfate
- storage material
- 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.)
- Expired
Links
- 238000005338 heat storage Methods 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 26
- 239000011232 storage material Substances 0.000 claims description 21
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 claims description 8
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 3
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 1
- FYXKZNLBZKRYSS-UHFFFAOYSA-N benzene-1,2-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC=C1C(Cl)=O FYXKZNLBZKRYSS-UHFFFAOYSA-N 0.000 claims 1
- 239000001530 fumaric acid Substances 0.000 claims 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims 1
- 239000002667 nucleating agent Substances 0.000 claims 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical compound OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 claims 1
- 229960004889 salicylic acid Drugs 0.000 claims 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 10
- 235000019345 sodium thiosulphate Nutrition 0.000 description 10
- 238000003776 cleavage reaction Methods 0.000 description 6
- 230000007017 scission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000004781 supercooling Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 2
- 229910001863 barium hydroxide Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 150000002894 organic compounds Chemical group 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- UUCCCPNEFXQJEL-UHFFFAOYSA-L strontium dihydroxide Chemical compound [OH-].[OH-].[Sr+2] UUCCCPNEFXQJEL-UHFFFAOYSA-L 0.000 description 2
- 229910001866 strontium hydroxide Inorganic materials 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011824 nuclear material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- -1 salt hydrates Chemical class 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
Description
本発明は太陽熱利用暖房装置の蓄熱器用蓄熱材
に関するものである。太陽熱などを利用して冷暖
房を行わせる方法として水を蓄熱物質として用い
その顕熱を利用する場合と塩類水和物の融解一凝
固時の潜熱を利用する場合がある。ヒートポンプ
を用いず、ボイラーの温水熱、工場排熱などを蓄
熱し、そのまま暖房に利用する場合には40〜50℃
の範囲に融点を有する蓄熱材が必要である。
これにはチオ硫酸ナトリウム（Na2S2O3・
5H2O）が48.5℃の融点を有し、蓄熱量も82Cal／
c.c.と大きく安価である点にすぐれている。しかし
この物質は凝固時の過冷が大きく、ガラス容器中
では20〜30℃の過冷を示し貯えた熱を所定温度で
放出できない欠点を有している。本発明の目的は
このチオ硫酸ナトリウム５水塩の過冷を防止し、
所定温度で蓄熱放熱が行なわれる蓄熱材を提供す
ることである。
一般に液相から固相への相変化は結晶核の発生
段階と核を中心として結晶の成長段階に分けて考
えることができる。核発生には大きなエネルギー
を必要とし過冷現象はこのエネルギー障壁のため
に生ずることが知られている。このため過冷を防
止するため核物質を添加する方法が行なわれてい
る。この場合核物質は液相中に溶解せずに存在
し、界面上に新たに生成する結晶との界面エネル
ギーが小さいこと、核がある臨界半径以上の大き
さを持つことが必要であることも知られている。
（臨界半径は１〜100ｍμ）また結晶の成長は低分
子密度の結晶面（立方晶系ならば100，110，111
面）で起り易く、また結晶はステツプの移動の形
をとつて成長することが知られている。
このような発核材の例として塩化カルシウム６
水塩に対する水酸化バリウム、水酸化ストロンチ
ウムの発核効果が認められている。しかしチオ硫
酸ナトリウムはアルカリ性になると分解するので
アルカリ性物質である水酸化バリウム、水酸化ス
トロンチウムを添加することはできない。
このような理論的見地に立脚してチオ硫酸ナト
リウムの発核材を実験検討した結果、劈開性を有
する有機化合物結晶で昇華性であるか、あるいは
水またはチオ硫酸ナトリウムの水溶液中に微量溶
解する物質はチオ硫酸ナトリウムの発核材になり
うること、また発核材の密度がチオ硫酸ナトリウ
ムの比重1.74±0.3の範囲（1.44〜2.04）にある場
合、発核材としての効果が特に大きいことがわか
つた。
劈開性結晶は劈開面における結合力が弱いこと
が知られている。例えば、原子が二次元に配列し
て薄片状結晶を作る場合、薄片の平面間の結合は
弱く劈開面になり易い。この劈開面は低エネルギ
ー面（低密度面）であり、この面上に結晶が生長
し易いと考えられる。また発核材の密度が蓄熱材
の密度に近い（1.74±0.3）ことは結晶すべき塩
類溶液中に結晶核を均一に分散させ、溶液内の各
所で結晶生長を促進する効果がある。
また発核材が昇華性あるいは水及び塩類水溶液
に微量溶解することは結晶表面が微量に溶解除去
されて清浄化し、結晶の生長に好適な表面が形成
されることによると考えられる。
また平面状に分子が配列し、層構造をとる有機
化合物では層間が劈開面になることが多い。
このような化合物では劈開面に垂直方向の結晶
成長速度が大きく、層に平行方向の結晶成長速度
は遅い。一般に棒状の分子軸を有する結晶では分
子軸に垂直方向に成長し易く、平板状の分子配列
をとる結晶では平面がつみ重なつて成長すること
が多く、格子間隔が小さい方向に成長し、単位格
子と結晶形態は相反則をとることが多い。このた
め結晶成長方向に直角に破断（劈開など）された
面は発核材としてその面上に他の結晶を成長させ
ることができるのである。
これらの発核材は微量添加しても効果が認めら
れるが実用的にはチオ硫酸ナトリウムに対して
0.01重量％以上である。添加の上限は特に作用効
果上限定する理由はないが多量の添加は蓄熱密度
を減少させるので10重量％程度に限定することが
実用的である。これらの発核材の添加方法として
はチオ硫酸ナトリウム５水塩に直接添加してもよ
いし、その他必要に応じて適当な支持体、担体に
発核材を保持させ、これをチオ硫酸ナトリウム中
に介在させてもよい。
第１図はチオ硫酸ナトリウム５水塩
（Na2SO3・5H2O）に本発明の発核材を添加した
蓄熱材の蓄熱一放熱状況を発核材無添加の場合及
び水を蓄熱材としたものとを対比して示したもの
である。
この図から発核材無添加の場合は48.5℃以上で
融解したのち冷却すると過冷却のため25℃までは
凝固せず25℃で１′（CD）に示すように放熱し、
ACDFAで示す熱履歴を画く。これに対して本発
明の発核材である無水フタル酸を0.1％添加した
蓄熱材では45℃で２′（BE）で示すように放熱
し、ABFFAの吸熱一放熱の熱履歴サイクルを画
くことを示している。なお、図の矢印は蓄熱量の
変化方向を示している（１′，２′は放熱、２は吸
熱）。
こゝでチオ硫酸ナトリウムの単位体積当りの蓄
熱量を比較するとチオ硫酸ナトリウム５水塩の場
合48.5℃で約82KCal／であるのに対して曲線
３に示した水の同温度における蓄熱量は約
10KCal／であり、チオ硫酸ナトリウムが蓄熱
材としてすぐれていることは明らかである。
第２図は蓄熱器のモデル実験装置を示したもの
で１は内部に蓄熱材が充填された蓄熱槽、２は熱
交換用の円筒水槽、３は撹拌装置、４は温度セン
サ、５は断熱材である。
第３図は第２図の装置で蓄熱槽と熱交換用の水
槽の容積比が１：５である場合の熱交換水槽の温
度変化を経時的に示したものである。図の測定条
件は蓄熱槽内のチオ硫酸ナトリウム５水塩を予め
60℃に加熱しておき熱交換水槽の温度を20℃とし
て撹拌しながら温度の経時変化を測定した。
曲線１ａ及び１ｂはそれぞれ発核材なし及びあ
りの場合の蓄熱槽１の温度変化を、曲線２ａ及び
２ｂは蓄熱材の温度変化から求めた蓄熱槽１の放
熱速度をそれぞれ発核材なし及び発核材あり（無
水フタル酸0.1％添加）の場合について示したも
のである。本発明による場合は曲線２ｂから明ら
かなように大きな放熱速度が得られ、20〜60℃の
範囲で熱交換を行わせる場合、本発明の発核材は
蓄熱量が大きくする効果が認められる。
以下本発明の実施例につき説明する。
チオ硫酸ナトリウム５水塩（Na2S2O3・
5H2O）に第１表に示す発核材を0.05％添加した
蓄熱材に温度計（銅−ユニスタンヌン熱電対）を
挿入して70℃〜20℃の範囲に加熱冷却を繰返し、
蓄熱材の融解―凝固特性を測定した。この結果を
第１表に示した。
第１表の結果から発核材を添加した蓄熱材は過
冷が少なく一定温度で凝固、融解し蓄熱材として
安定していることが認められる。
また、第１表に示す発核材を１％添加した場合
も同様の効果が得られた。
The present invention relates to a heat storage material for a heat storage device of a solar heating system. There are two ways to perform air conditioning and heating using solar heat and the like: one uses water as a heat storage material and uses its sensible heat, and the other uses the latent heat from the melting and solidification of salt hydrates. If you do not use a heat pump and store boiler hot water heat, factory exhaust heat, etc. and use it as is for heating, the temperature will be 40 to 50℃.
A heat storage material with a melting point in the range of . This includes sodium thiosulfate (Na 2 S 2 O 3
5H 2 O) has a melting point of 48.5℃, and the amount of heat storage is 82Cal/
It is excellent in that it is large in size and inexpensive. However, this substance suffers from a large degree of supercooling during solidification, and has the disadvantage that it is supercooled to 20 to 30°C in a glass container and cannot release the stored heat at a predetermined temperature. The purpose of the present invention is to prevent overcooling of this sodium thiosulfate pentahydrate,
It is an object of the present invention to provide a heat storage material that stores and releases heat at a predetermined temperature. In general, a phase change from a liquid phase to a solid phase can be thought of as being divided into a crystal nucleus generation stage and a crystal growth stage centered on the nucleus. Nuclear generation requires a large amount of energy, and it is known that supercooling occurs due to this energy barrier. For this reason, a method of adding nuclear material is used to prevent overcooling. In this case, the nuclear substance exists without being dissolved in the liquid phase, the interfacial energy with the newly generated crystal on the interface is small, and the nucleus needs to have a size larger than a certain critical radius. Are known.
(The critical radius is 1 to 100 mμ) Also, crystal growth occurs on crystal planes with low molecular density (100, 110, 111 for cubic systems)
It is also known that crystals grow in the form of step movement. An example of such a nucleating material is calcium chloride 6
The nucleating effect of barium hydroxide and strontium hydroxide on water salts has been recognized. However, since sodium thiosulfate decomposes when it becomes alkaline, barium hydroxide and strontium hydroxide, which are alkaline substances, cannot be added. Based on this theoretical perspective, we conducted an experimental study on the nucleating material of sodium thiosulfate, and found that it is an organic compound crystal with cleavage properties and is sublimable, or that it dissolves in trace amounts in water or an aqueous solution of sodium thiosulfate. The substance can be a nucleating material for sodium thiosulfate, and it is particularly effective as a nucleating material when the density of the nucleating material is in the range of 1.74 ± 0.3 (1.44 to 2.04), which is the specific gravity of sodium thiosulfate. I understood. It is known that cleavable crystals have weak bonding strength at the cleavage plane. For example, when atoms are arranged two-dimensionally to form a flaky crystal, the bonds between the planes of the flakes are weak and tend to form cleavage planes. This cleavage plane is a low energy plane (low density plane), and it is considered that crystals are likely to grow on this plane. Furthermore, the fact that the density of the nucleating material is close to that of the heat storage material (1.74±0.3) has the effect of uniformly dispersing crystal nuclei in the salt solution to be crystallized and promoting crystal growth at various locations within the solution. Furthermore, the fact that the nucleating material sublimes or dissolves in small amounts in water and aqueous salt solutions is thought to be due to the fact that the crystal surface is dissolved and removed in small amounts to clean it and form a surface suitable for crystal growth. Furthermore, in organic compounds that have a layered structure in which molecules are arranged in a planar manner, cleavage planes often form between the layers. In such a compound, the crystal growth rate in the direction perpendicular to the cleavage plane is high, and the crystal growth rate in the direction parallel to the layer is slow. In general, crystals with rod-shaped molecular axes tend to grow perpendicular to the molecular axis, whereas crystals with a plate-like molecular arrangement often grow with planes stacked on top of each other, resulting in growth in the direction of smaller lattice spacing, and unit Lattice and crystal morphology often exhibit reciprocity. Therefore, a surface fractured (cleaved, etc.) perpendicular to the crystal growth direction can serve as a nucleating material on which other crystals can grow. These nucleating materials are effective even when added in small amounts, but in practical terms they are more effective than sodium thiosulfate.
It is 0.01% by weight or more. There is no particular reason to limit the upper limit of addition in terms of effects, but since adding a large amount will reduce the heat storage density, it is practical to limit it to about 10% by weight. These nucleating materials may be added directly to sodium thiosulfate pentahydrate, or if necessary, the nucleating materials may be held on a suitable support or carrier and then added to sodium thiosulfate. may be interposed. Figure 1 shows the heat storage and heat release conditions of a heat storage material made by adding the nucleating material of the present invention to sodium thiosulfate pentahydrate (Na 2 SO 3 .5H 2 O) and the heat storage material with no nucleating material added and water as a heat storage material. This is a comparison of the above. This figure shows that when no nucleating material is added, when it is melted at 48.5°C or higher and then cooled, it does not solidify until 25°C due to supercooling, and heat is dissipated at 25°C as shown in 1' (CD).
Draw the thermal history shown by ACDFA. In contrast, the heat storage material to which 0.1% of phthalic anhydride, which is the nucleating material of the present invention, is added releases heat as shown by 2' (BE) at 45°C, and the heat history cycle of heat absorption and heat release of ABFFA is drawn. It shows. Note that the arrows in the figure indicate the direction of change in the amount of heat storage (1', 2' are heat radiation, 2 is heat absorption). Comparing the amount of heat storage per unit volume of sodium thiosulfate, in the case of sodium thiosulfate pentahydrate it is approximately 82 KCal/at 48.5℃, while the amount of heat storage at the same temperature of water shown in curve 3 is approximately
It is clear that sodium thiosulfate is excellent as a heat storage material. Figure 2 shows a model experimental device for a heat storage device. 1 is a heat storage tank filled with heat storage material, 2 is a cylindrical water tank for heat exchange, 3 is a stirring device, 4 is a temperature sensor, and 5 is a heat insulator. It is a material. FIG. 3 shows the temperature change of the heat exchange tank over time when the volume ratio of the heat storage tank and the heat exchange water tank is 1:5 in the apparatus shown in FIG. The measurement conditions shown in the figure are sodium thiosulfate pentahydrate in the heat storage tank.
It was heated to 60°C, and the temperature of the heat exchange tank was set at 20°C, and the temperature change over time was measured while stirring. Curves 1a and 1b represent the temperature change of the heat storage tank 1 without and with the nucleating material, respectively, and curves 2a and 2b represent the heat release rate of the heat storage tank 1 determined from the temperature change of the heat storage material without the nucleating material and with the nucleating material, respectively. This shows the case with a core material (0.1% phthalic anhydride added). In the case of the present invention, a large heat dissipation rate is obtained as is clear from curve 2b, and when heat exchange is performed in the range of 20 to 60°C, the nucleating material of the present invention is recognized to be effective in increasing the amount of heat storage. Examples of the present invention will be described below. Sodium thiosulfate pentahydrate (Na 2 S 2 O 3
A thermometer (copper-unistannun thermocouple) was inserted into the heat storage material made by adding 0.05% of the nucleating material shown in Table 1 to 5H 2 O), and the temperature was repeatedly heated and cooled in the range of 70°C to 20°C.
The melting-solidification characteristics of the heat storage material were measured. The results are shown in Table 1. From the results in Table 1, it is recognized that the heat storage material to which the nucleating material is added is stable as a heat storage material because it solidifies and melts at a constant temperature with little overcooling. Further, similar effects were obtained when 1% of the nucleating material shown in Table 1 was added.
【表】
以上説明したように、本発明によればチオ硫酸
ナトリウム５水塩の過冷が防止でき、所定温度で
蓄放熱が行なわれる蓄熱材が得られる。[Table] As explained above, according to the present invention, it is possible to prevent overcooling of sodium thiosulfate pentahydrate and to obtain a heat storage material that stores and releases heat at a predetermined temperature.
第１図は本発明の発核材を添加した蓄熱材の蓄
熱一放熱状況を発核材無添加の場合及び水を蓄熱
材としたものとを対比して示した図、第２図は蓄
熱器のモデル実験装置を示す図である。
１…蓄熱槽、２…用筒水槽、３…撹拌装置、４
…温度センサ。
Figure 1 is a diagram showing the heat storage and heat release status of the heat storage material to which the nucleating material of the present invention is added, in comparison with the case without the nucleating material and the case where water is used as the heat storage material. FIG. 1... Heat storage tank, 2... Water tank, 3... Stirring device, 4
...Temperature sensor.
Claims (1)
れに発核材としてＰ―オキシ安息香酸ピクリン
酸、塩ピクリル、無水フタル酸、塩化フタリル、
フマル酸、サリチル酸、シアヌル酸のいづれか１
つを添加したことを特徴とする蓄熱材。 ２ 発核剤の添加量が0.01重量％から10重量％の
範囲である特許請求の範囲第１項記載の蓄熱材。[Scope of Claims] 1. Sodium thiosulfate pentahydrate as the main component, and as a nucleating material P-oxybenzoic acid picric acid, picrylic salt, phthalic anhydride, phthalyl chloride,
Any one of fumaric acid, salicylic acid, or cyanuric acid
A heat storage material characterized by adding: 2. The heat storage material according to claim 1, wherein the amount of the nucleating agent added is in the range of 0.01% by weight to 10% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56164165A JPS5866799A (en) | 1981-10-16 | 1981-10-16 | Heat-accumulating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56164165A JPS5866799A (en) | 1981-10-16 | 1981-10-16 | Heat-accumulating material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5866799A JPS5866799A (en) | 1983-04-21 |
| JPS6228995B2 true JPS6228995B2 (en) | 1987-06-23 |
Family
ID=15787957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56164165A Granted JPS5866799A (en) | 1981-10-16 | 1981-10-16 | Heat-accumulating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5866799A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2693469B1 (en) * | 1992-07-09 | 1994-10-07 | Centre Nat Rech Scient | Compositions for storing and restoring energy by latent heat. |
| CN110325615A (en) * | 2017-03-03 | 2019-10-11 | 日产化学株式会社 | Heat-storing material comprising cyanuric acid metal salt |
| JP2022014751A (en) * | 2020-07-07 | 2022-01-20 | デクセリアルズ株式会社 | Heat storage nucleating agent, heat storage medium, and method for producing the same |
-
1981
- 1981-10-16 JP JP56164165A patent/JPS5866799A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5866799A (en) | 1983-04-21 |
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