JPS63230784A - Latent heat storing material - Google Patents
Latent heat storing materialInfo
- Publication number
- JPS63230784A JPS63230784A JP62064209A JP6420987A JPS63230784A JP S63230784 A JPS63230784 A JP S63230784A JP 62064209 A JP62064209 A JP 62064209A JP 6420987 A JP6420987 A JP 6420987A JP S63230784 A JPS63230784 A JP S63230784A
- Authority
- JP
- Japan
- Prior art keywords
- latent heat
- phase
- anode
- heat storage
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title abstract description 6
- 239000012071 phase Substances 0.000 claims abstract description 20
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 239000002667 nucleating agent Substances 0.000 claims abstract description 12
- 239000007790 solid phase Substances 0.000 claims abstract description 11
- 239000002562 thickening agent Substances 0.000 claims abstract description 10
- 238000005191 phase separation Methods 0.000 claims abstract description 4
- 239000010405 anode material Substances 0.000 claims abstract description 3
- 238000005338 heat storage Methods 0.000 claims description 19
- 239000011232 storage material Substances 0.000 claims description 17
- 239000007791 liquid phase Substances 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 150000002500 ions Chemical class 0.000 claims description 9
- 150000002736 metal compounds Chemical class 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 235000017281 sodium acetate Nutrition 0.000 claims description 8
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- 229940087562 sodium acetate trihydrate Drugs 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- -1 nitrate ions Chemical class 0.000 claims description 6
- 229910002651 NO3 Inorganic materials 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 150000003842 bromide salts Chemical class 0.000 claims description 2
- 150000003841 chloride salts Chemical class 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 1
- 229910052794 bromium Inorganic materials 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 229910001961 silver nitrate Inorganic materials 0.000 claims 1
- 238000004781 supercooling Methods 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 6
- 230000020169 heat generation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical class [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、相変化温度以上に加熱されることにより固相
から液相へと相変化し核不在下において相変化湿度以下
の周囲温度まで過冷却されても所定温度までその液相状
態を保持できる潜熱蓄熱材において、その過冷却状態を
電極間に電圧を印加することにより確実に繰り返し解除
することが可能となる潜熱蓄熱材に関する。Detailed Description of the Invention [Objective of the Invention] (Industrial Field of Application) The present invention is characterized in that the phase changes from a solid phase to a liquid phase by heating above the phase change temperature, and in the absence of nuclei, a phase change humidity is achieved. In a latent heat storage material that can maintain its liquid state up to a certain temperature even if it is supercooled to the following ambient temperature, the latent heat that makes it possible to reliably and repeatedly release the supercooled state by applying a voltage between the electrodes. Regarding heat storage materials.
（従来の技術）
無Ｉｌまたは右目水和塩は、一般に固相から液相へと通
常１０℃〜１００℃の範囲内の固有の相変化温度にて潜
熱を吸収しながら変化し、熱を蓄える。逆に液相から固
相へと変化する時、上記潜熱を放出する特徴を有してい
る。しかし、上記水和塩には、過冷却現象すなわち核不
在下において相変化温度以下の周囲温度まで過冷却され
ても所定温度までその液相状態を保持するという特徴を
有しており、この過冷却状態のまま潜熱量を保存するこ
とが可能となる。そこで従来、剪断応力等のような物理
的刺激を与えたり、種材を接触させたり、ベルチエ効果
、ピエゾ効果を用いたり、電圧を印加させたりずことで
過冷却状態を解除するという提案がなされていた。BACKGROUND OF THE INVENTION Il-free or right-eye hydrated salts generally change from a solid phase to a liquid phase at a unique phase change temperature, typically within the range of 10°C to 100°C, absorbing latent heat and storing heat. . Conversely, when changing from a liquid phase to a solid phase, it has the characteristic of releasing the latent heat mentioned above. However, the above-mentioned hydrated salt has a supercooling phenomenon, that is, it maintains its liquid phase state up to a predetermined temperature even if it is supercooled to an ambient temperature below the phase change temperature in the absence of nuclei. It becomes possible to preserve the amount of latent heat in a cooled state. Therefore, conventional proposals have been made to release the supercooled state by applying physical stimuli such as shear stress, bringing seed materials into contact, using the Bertier effect, piezo effect, or applying voltage. was.
（発明が解決しようとする問題点）
このなかで電圧を印加することにより過冷却状態を解除
する方法においては、過冷却状態が解除可能となるのは
数回に限定され、連続的に繰り返し加熱−冷却−放熱サ
イクルを行なうのは不可能であった。(Problem to be solved by the invention) Among these, in the method of canceling the supercooling state by applying a voltage, the supercooling state can only be released a few times, and the heating is repeated continuously. - It was not possible to perform a cooling-heat dissipation cycle.
そこで本発明者らは過冷却状態が電圧印加により解除さ
れる原理を把握するため鋭意研究を行なった結果、この
原理は、電極間を流れる電流刺激が過冷却状態の解除を
行なっている訳ではなく電極からのイオンの移動および
電極表面での化合物の析出が過冷却状態の解除の主な原
因となっていることが分かった。Therefore, the present inventors conducted intensive research to understand the principle by which the supercooled state is released by voltage application, and found that this principle does not mean that the current stimulation flowing between the electrodes releases the supercooled state. It was found that the movement of ions from the electrode and the precipitation of compounds on the electrode surface were the main causes of release of the supercooled state.
このため、従来までのように単に電極間に電圧を印加し
、電流を流すのみでは、電極材イオンの移動による化合
物の析出のため極表面が変化するため電極間の電圧印加
回数を増すにつれ電極表面上に酸化物等の被膜が形成さ
れ徐々に電流密度は低下し、誘導期間も長くなり、Ｒ柊
的には過冷却状態を解除することが出来なくなるという
欠点があった。For this reason, if you simply apply a voltage between the electrodes and flow a current as in the past, the electrode surface will change due to the precipitation of compounds due to the movement of the electrode material ions, so as the number of times the voltage is applied between the electrodes increases, the electrode A film of oxide or the like is formed on the surface, the current density gradually decreases, the induction period becomes longer, and from the point of view of R-Hiragi, there is a drawback that the supercooled state cannot be released.
本発明は上記の事情を考慮してなされたもので、過冷却
状態にあろ水和塩を固相へ相変化させるため電圧を印加
し電極上へのイオンの移動および化合物の析出にて核生
成を°促進させる場合、水和塩を主成分とした潜熱蓄熱
材中に陽極上に水溶性または加熱により水溶性となり、
かつ過冷却、状態を解除するための核生成剤となる金属
化合物を生成するようなイオンを添加することで蓄熱−
放熱サイクルの繰り返し安定性を付加させ確実に潜熱を
取り出し得る潜熱蓄熱材を提供することを目的とする。The present invention was made in consideration of the above circumstances, and a voltage is applied to phase-change the hydrated salt in a supercooled state to a solid phase, and nucleation occurs through the movement of ions onto the electrode and the precipitation of compounds. When accelerating the temperature, water-soluble or heated water-soluble material is added to the anode in the latent heat storage material mainly composed of hydrated salt.
Heat storage is achieved by adding ions that generate metal compounds that act as nucleating agents to release the supercooled state.
It is an object of the present invention to provide a latent heat storage material that can add stability to repeated heat dissipation cycles and reliably extract latent heat.
［発明の構成］
（問題点を解決するための手段と作用）本発明は上記の
目的を達成するために、核不在下において相変化温度以
上に加熱されることにより固相から液相へと相変化し、
その後相変化温度以下の周囲温度まで過冷却されても所
定温度までその液相状態を保持する、無機あるいは有機
水和塩のうち少なくとも１種と、相分離現象を防止する
増粘剤にて構成される潜熱蓄熱材本体中へ、１対の電極
を挿入し、電極間に電流を流すことにより過冷却状態を
解除させ潜熱を放出する潜熱蓄熱材において、陽極上に
水溶性または加熱により水溶性となり、かつ過冷却解除
するための核生成剤となる金属化合物を生成するイオン
を陽極材料に与え得る水溶性化合物を添加することによ
り、蓄熱−放熱サイクルの繰り返し安定性を付加させ確
実に潜熱を取り出し得ることを特徴とするものである。[Structure of the Invention] (Means and Effects for Solving the Problems) In order to achieve the above object, the present invention provides a process in which a solid phase changes from a solid phase to a liquid phase by heating above the phase change temperature in the absence of nuclei. phase change,
Composed of at least one type of inorganic or organic hydrated salt that maintains its liquid state up to a predetermined temperature even if it is supercooled to an ambient temperature below the phase change temperature, and a thickener that prevents phase separation. In the latent heat storage material, a pair of electrodes is inserted into the main body of the latent heat storage material, and a current is passed between the electrodes to release the supercooled state and release latent heat. By adding a water-soluble compound that can provide the anode material with ions that generate a metal compound that becomes a nucleation agent to release supercooling, it adds stability to the repeated heat storage-heat release cycle and reliably releases latent heat. It is characterized by being removable.
（実施例） 以下図面を参照して本発明の実施例を詳細に説明する。(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.
酢酸ナトリウム無水塩にポリアクリルアミド系凝集剤を
１％添加し、蒸溜水を酢酸ナトリウムが３水和塩となる
のに必要な吊だけ添加し、サイクル安定化イオンとして
硝酸イオンを加えるため硝酸を０．１％添加し、十分に
液相状態になるまで加熱しながら攪拌混合を行ない、過
冷却解除を行なうため銀電極を挿入した。このようにし
てつくられた潜熱蓄熱材を室温まで冷五〇させ、１１電
極に電圧を印加することで、過冷却状態を解除した。こ
れにより、過冷却の解除と同時に直ちに発熱を開始し、
５５〜５８℃まで温度が上昇した。このように加熱（液
相変化）−冷Ｕ（過冷却状態）〜電圧印加（発熱）サイ
クルを繰り返し、そのときの電流密度と誘導期間の変化
を観察した結果、従来のようにリイクル安定化イオンを
添加しない場合、第２図のように連続４回のサイクルで
繰り返し回数が増すにつれ徐々に発熱時の電流密度は低
下し誘導期間は長くなり最終的には過冷却状態を解除す
ることが出来なくなる（第１図の曲１１１ａ参照）。Add 1% polyacrylamide flocculant to sodium acetate anhydrous salt, add distilled water in the amount necessary for sodium acetate to become a trihydrate salt, and add nitric acid to 0 to add nitrate ion as a cycle stabilizing ion. .1% was added and stirred and mixed while heating until it became sufficiently liquid phase, and a silver electrode was inserted to remove supercooling. The latent heat storage material thus produced was cooled to room temperature for 50 minutes, and the supercooled state was released by applying voltage to the 11 electrodes. As a result, as soon as supercooling is released, heat generation begins,
The temperature rose to 55-58°C. As a result of repeating the cycle of heating (liquid phase change) - cold U (supercooled state) - voltage application (heating) and observing the changes in current density and induction period, we found that the recycle stabilizing ion When not added, the current density during heat generation gradually decreases as the number of repetitions increases over four consecutive cycles as shown in Figure 2, the induction period becomes longer, and eventually the supercooling state cannot be released. (See song 111a in Figure 1).
しかし、硝酸イオンの添加により第１図の曲線すに示し
たように連続５０回の加熱（液相変化）−冷却（過冷却
状態）−電圧印加（発熱）サイクルを繰り返し行なった
後も電流密度に大きな変化は認められず、誘導期間も３
〜１０秒と安定して行なうことが出来るようになった。However, due to the addition of nitrate ions, the current density remained low even after 50 consecutive heating (liquid phase change) - cooling (supercooled state) - voltage application (heat generation) cycles, as shown in the curve in Figure 1. No major changes were observed in the induction period, and the induction period was 3.
Now I can do it stably for ~10 seconds.
これは、陽極である眼上にて一時的に硝ＭｆＭ結晶が形
成され、これが核となり液相から固相へと発熱しなから
相変化する。その後、加熱により固相より液相へ変化す
るとき、酢酸ナトリウム３水塩より外部へ放出される結
晶水中に核として生成した硝ｉＳ！銀は再度溶解し、陽
極である銀表面上は、初期状態に戻る。This is because a nitrate MfM crystal is temporarily formed on the eye, which is the anode, and this crystal becomes a nucleus, causing a phase change from a liquid phase to a solid phase without generating heat. Thereafter, when the solid phase changes to the liquid phase due to heating, nitric iS is generated as a nucleus in the crystallization water released from sodium acetate trihydrate! The silver dissolves again, and the silver surface, which is the anode, returns to its initial state.
このサイクルにより加熱（液相変化）−冷却（過冷却状
態）−電圧印加（発熱）サイクルを繰り返し行なっても
電流密度、誘導期間をほとんど変化させることなしに連
続して使用することが可能となる。This cycle makes it possible to use the heating (liquid phase change) - cooling (supercooled state) - voltage application (heat generation) cycle continuously without changing the current density or induction period, even if the cycle is repeated. .
尚、有機水和塩として、酢酸ナトリウム３水和塩、増粘
剤としてポリアクリルアミド系凝集剤、陽極に銀、銅、
鉄、ニッケルもしくはそれらの合金を用いた場合には核
生成剤となる金属化合物を生成するため硝酸イオンを硝
酸または硝酸塩にて添加する。In addition, sodium acetate trihydrate is used as an organic hydrated salt, polyacrylamide flocculant is used as a thickener, and silver, copper, and
When iron, nickel, or an alloy thereof is used, nitrate ions are added in the form of nitric acid or nitrate to generate a metal compound as a nucleating agent.
又、有機水和塩として、酢酸ナトリウム３水和塩、増粘
剤としてポリアクリルアミド系凝集剤、陽極に亜鉛、鉄
、ニッケル、アルミニウムもしくはそれらの合金を用い
た場合には核生成剤となる金属化合物を生成するため臭
素イオンを臭化ナトリウムなどの臭化物にて添加する。In addition, sodium acetate trihydrate is used as an organic hydrated salt, a polyacrylamide flocculant is used as a thickener, and when zinc, iron, nickel, aluminum or an alloy thereof is used as an anode, a metal is used as a nucleating agent. Bromine ion is added in the form of a bromide such as sodium bromide to generate the compound.
更に、有機水和塩として、酢酸ナトリウム３水和塩、増
粘剤としてポリアクリルアミド系凝集剤、陽極にスズ、
ニッケル、もしくはそれらの合金を用いた場合には核生
成剤となる金属化合物を生成するため塩素イオンを塩化
カリウムなどの塩化物にて添加する。Furthermore, sodium acetate trihydrate is used as an organic hydrated salt, a polyacrylamide flocculant is used as a thickener, and tin is used as an anode.
When nickel or an alloy thereof is used, chloride ions are added in the form of a chloride such as potassium chloride in order to generate a metal compound serving as a nucleating agent.
［発明の効果１
以上のように本発明によれば、核不在下において相変化
温度以上に加熱されることにより固相から液相へと相変
化し、その後相変化温度以下の周囲温度まで過冷却され
ても所定温度までその液相状態を保持する、無様あるい
は有機水和塩のうち１種と、相分離現象を防止する増粘
剤にて構成される潜熱蓄熱材本体中へ、１対の電極を挿
入し、電極間に電流を流すことにより過冷却現象を解除
させ潜熱を放出するような潜熱蓄熱材において、陽極上
に水溶性または加熱により水溶性となり、かつ過冷却状
態を解除するための核生成剤となる金属化合物を生成す
るようなイオンを添加することにより、蓄熱−放熱サイ
クルの繰り返し安定性を付加させ確実に潜熱を取り出す
ことが出来るようになった。[Effect of the Invention 1 As described above, according to the present invention, the phase changes from a solid phase to a liquid phase by being heated above the phase change temperature in the absence of a nucleus, and then heated to an ambient temperature below the phase change temperature. A pair of latent heat storage materials are inserted into the main body of the latent heat storage material, which is composed of one type of amorphous or organic hydrated salt that maintains its liquid phase state up to a predetermined temperature even when cooled, and a thickener that prevents phase separation. In a latent heat storage material that releases latent heat by inserting an electrode and passing a current between the electrodes, the supercooling phenomenon is canceled and latent heat is released. By adding ions that generate metal compounds that serve as nucleating agents for heat generation, it has become possible to add stability to repeated heat storage and heat release cycles and to reliably extract latent heat.
第１図は本発明の実施例に示した組成での繰り返し回数
に対する電流密度の変化の一例を従来例と比較して示す
特性図、第２図は従来の蓄熱材における電圧印加時から
の電流密度の時間的変化を示す特性図である。
ａ・・・従来例、ｂ・・・本発明の実施例。
出願人代理人 弁理士 鈴江武彦
米乗り仮、シ＠数
休県朝Ｆ７ １：ｂｅｃ）Fig. 1 is a characteristic diagram showing an example of the change in current density with respect to the number of repetitions in the composition shown in the example of the present invention in comparison with a conventional example, and Fig. 2 shows the current from the time of voltage application in a conventional heat storage material. FIG. 3 is a characteristic diagram showing temporal changes in density. a: Conventional example, b: Example of the present invention. Applicant's agent: Patent attorney Takehiko Suzue (Kyoneri Kari, Shi@Sukyuken Asahi F7 1:bec)
Claims (4)
とにより固相から液相へと相変化し、相変化温度以下の
周囲温度まで過冷却されても所定温度までその液相状態
を保持する、無機あるいは有機水和塩のうち少なくとも
１種と、相分離現象を防止する増粘剤にて構成される潜
熱蓄熱材本体中へ、１対の電極を挿入し、電極間に電流
を流すことにより過冷却状態を解除させ潜熱を放出する
潜熱蓄熱材において、陽極上に水溶性または加熱により
水溶性となり、かつ過冷却状態を解除するための核生成
剤となる金属化合物を生成するイオンを陽極材料に与え
得る水溶性化合物を添加することを特徴とする潜熱蓄熱
材。(1) In the absence of a nucleus, the phase changes from a solid phase to a liquid phase by being heated above the phase change temperature, and the liquid phase state is maintained up to a specified temperature even if supercooled to an ambient temperature below the phase change temperature. A pair of electrodes is inserted into the main body of the latent heat storage material, which is composed of at least one type of inorganic or organic hydrated salt and a thickener that prevents phase separation, and a current is passed between the electrodes. In the latent heat storage material that releases latent heat by releasing the supercooled state, ions that are water-soluble or become water-soluble by heating and generate metal compounds that serve as nucleation agents to release the supercooled state are placed on the anode. A latent heat storage material characterized by adding a water-soluble compound capable of imparting to an anode material.
粘剤としてポリアクリルアミド系凝集剤、陽極に銀、銅
、鉄、ニッケルもしくはそれらの合金を用いた場合核生
成剤となる金属化合物を生成するため硝酸イオンを硝酸
または硝酸銀にて添加したことを特徴とする特許請求の
範囲第１項記載の潜熱蓄熱材。(2) Sodium acetate trihydrate as the organic hydrate salt, a polyacrylamide flocculant as the thickener, and a metal compound as a nucleating agent when silver, copper, iron, nickel, or an alloy thereof is used as the anode. 2. The latent heat storage material according to claim 1, wherein nitrate ions are added in the form of nitric acid or silver nitrate to generate.
粘剤としてポリアクリルアミド系凝集剤、陽極に亜鉛、
鉄、ニッケル、アルミニウムもしくはそれらの合金を用
いた場合核生成剤となる金属化合物を生成するため臭素
イオンを臭化ナトリウムなどの臭化物にて添加したこと
を特徴とする特許請求の範囲第１項記載の潜熱蓄熱材。(3) Sodium acetate trihydrate as the organic hydrate salt, polyacrylamide flocculant as the thickener, zinc as the anode,
Claim 1, characterized in that when iron, nickel, aluminum, or an alloy thereof is used, bromine ions are added in the form of a bromide such as sodium bromide to generate a metal compound that becomes a nucleating agent. latent heat storage material.
粘剤としてポリアクリルアミド系凝集剤、陽極にスズ、
ニッケルもしくはそれらの合金を用いた場合核生成剤と
なる金属化合物を生成するため塩素イオンを塩化カリウ
ムなどの塩化物にて添加したことを特徴とする特許請求
の範囲第１項記載の潜熱蓄熱材。(4) Sodium acetate trihydrate as the organic hydrate salt, polyacrylamide flocculant as the thickener, tin as the anode,
The latent heat storage material according to claim 1, characterized in that when nickel or an alloy thereof is used, chlorine ions are added in the form of a chloride such as potassium chloride in order to generate a metal compound that becomes a nucleating agent. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62064209A JPS63230784A (en) | 1987-03-20 | 1987-03-20 | Latent heat storing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62064209A JPS63230784A (en) | 1987-03-20 | 1987-03-20 | Latent heat storing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63230784A true JPS63230784A (en) | 1988-09-27 |
Family
ID=13251460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62064209A Pending JPS63230784A (en) | 1987-03-20 | 1987-03-20 | Latent heat storing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63230784A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0533808A1 (en) * | 1990-06-15 | 1993-03-31 | Prism Tech Inc | Reusable warmers of the type employing a super-cooled solution and an activator. |
| USRE35586E (en) * | 1990-06-15 | 1997-08-19 | Prism Enterprises, Inc. | Reusable warmers of the type employing a super-cooled solution and an activator |
| US5954119A (en) * | 1994-06-21 | 1999-09-21 | Toyota Jidosha Kabushiki Kaisha | Heat accumulator |
| US9650554B2 (en) | 2015-08-06 | 2017-05-16 | Panasonic Corporation | Latent heat storage material |
-
1987
- 1987-03-20 JP JP62064209A patent/JPS63230784A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0533808A1 (en) * | 1990-06-15 | 1993-03-31 | Prism Tech Inc | Reusable warmers of the type employing a super-cooled solution and an activator. |
| US5339796A (en) * | 1990-06-15 | 1994-08-23 | Prism Technologies, Inc. | Reusable warmers of the type employing a super-cooled solution and an activator |
| USRE35586E (en) * | 1990-06-15 | 1997-08-19 | Prism Enterprises, Inc. | Reusable warmers of the type employing a super-cooled solution and an activator |
| US5954119A (en) * | 1994-06-21 | 1999-09-21 | Toyota Jidosha Kabushiki Kaisha | Heat accumulator |
| US9650554B2 (en) | 2015-08-06 | 2017-05-16 | Panasonic Corporation | Latent heat storage material |
| EP3127986B1 (en) * | 2015-08-06 | 2022-02-16 | Panasonic Corporation | Latent heat storage material |
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