JPH0548799B2 - - Google Patents
Info
- Publication number
- JPH0548799B2 JPH0548799B2 JP63156015A JP15601588A JPH0548799B2 JP H0548799 B2 JPH0548799 B2 JP H0548799B2 JP 63156015 A JP63156015 A JP 63156015A JP 15601588 A JP15601588 A JP 15601588A JP H0548799 B2 JPH0548799 B2 JP H0548799B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat storage
- storage agent
- supercooling
- container
- 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 - Lifetime
Links
- 238000005338 heat storage Methods 0.000 claims description 55
- 239000011232 storage material Substances 0.000 claims description 51
- 238000004781 supercooling Methods 0.000 claims description 29
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 5
- 239000007790 solid phase Substances 0.000 description 5
- 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 description 3
- 150000004676 glycans Chemical class 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 229920001282 polysaccharide Polymers 0.000 description 3
- 239000005017 polysaccharide Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 235000017281 sodium acetate Nutrition 0.000 description 3
- 229940087562 sodium acetate trihydrate Drugs 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 229920000161 Locust bean gum Polymers 0.000 description 1
- 230000005679 Peltier effect Effects 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000711 locust bean gum Substances 0.000 description 1
- 235000010420 locust bean gum Nutrition 0.000 description 1
- -1 locust bean gum Chemical class 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
Landscapes
- Thermotherapy And Cooling Therapy Devices (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ヒートバツテリー等に用いられる過
冷却性質をもつ蓄熱剤の過冷却解除方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for canceling supercooling of a heat storage agent having supercooling properties used in heat batteries and the like.
［従来の技術］
従来、熱を保存し、再び取り出す蓄熱剤として
相転移の潜熱を利用するものが知られている。こ
の種の蓄熱剤は潜熱蓄熱量が大きく、利用温度領
域が適当な通常、酢酸ナトリウム三水和物、硫酸
ナトリウム10水和物等の含水塩と、この含水塩の
担持体例えば、キサンタンガム、グアルガム、い
なご豆ガム等の親水性多糖類又は、澱粉、ポリア
クリル酸等の濃化剤よりなるものが知られてお
り、断熱容器内に収容した蓄熱剤の融点（転移温
度）以上に加熱することにより熱吸収させた後、
融点以下の温度まで冷却して、顕熱を放出させた
液相状態のまま保持することにより蓄熱する。[Prior Art] Conventionally, heat storage agents that utilize the latent heat of phase transition are known as heat storage agents that store heat and take it out again. This type of heat storage agent has a large amount of latent heat storage, and is usually made of a hydrated salt such as sodium acetate trihydrate or sodium sulfate decahydrate, and a carrier for this hydrated salt such as xanthan gum or guar gum. , hydrophilic polysaccharides such as locust bean gum, or thickening agents such as starch and polyacrylic acid are known, and they must be heated above the melting point (transition temperature) of the heat storage agent stored in an insulated container. After absorbing heat by
It stores heat by cooling it to a temperature below its melting point and maintaining it in a liquid phase that releases sensible heat.
そして、必要な時、適度な刺激を与えると、順
次、過冷却解除の種を生成させる融点まで上昇
し、固相が発生し始め、固相生成するときの潜熱
として放出させるものである。 Then, when appropriate stimulation is applied when necessary, the temperature rises to the melting point that generates seeds to release the supercooling, and a solid phase begins to be generated, which is released as latent heat when the solid phase is generated.
このような、融点以下に冷却された過冷却蓄熱
剤を核形成させて、吸収している熱エネルギを放
出させる過冷却解除方法としては、例えば、特開
昭60−144380号公報に開示されているように、核
形成方法として塩の種結晶あるいは尖鋭物等の核
形成源導入方法もしくは、局部的溶融法、又はゲ
ルにせん断応力を加える方法により達成すること
ができる。 A method of releasing supercooling in which the supercooled heat storage agent cooled below its melting point forms nuclei and releases the absorbed thermal energy is disclosed, for example, in Japanese Patent Application Laid-Open No. 144380/1983. As described above, nucleation can be achieved by introducing a nucleation source such as a salt seed crystal or a sharp object, by a local melting method, or by applying shear stress to the gel.
一方、スナツプアクシヨンを利用して蓄冷物質
を部分的に圧縮することによつても種結晶を生成
させることができる。 On the other hand, seed crystals can also be generated by partially compressing the cold storage material using a snap action.
［発明が解決しようとする課題］
しかしながら、容器内に外部から種結晶又は尖
鋭物を投入する方法は、密封性容器を必ず一度開
封したり、蓄熱剤に異物を接触させなければなら
ず、このとき蓄熱剤は外気及び接触を持つので、
組成が変わつたり、粉塵、細菌、胞子等の大気中
の浮游物の侵入により変質する原因となり、蓄熱
剤の寿命を縮める。[Problems to be Solved by the Invention] However, the method of introducing seed crystals or sharp objects into the container from the outside requires opening the hermetically sealed container once or bringing foreign objects into contact with the heat storage agent. When the heat storage agent has contact with the outside air,
This can cause changes in the composition or deterioration due to the intrusion of airborne substances such as dust, bacteria, and spores, which shortens the life of the heat storage agent.
一方、せん断応力等の力学的操作により、種結
晶を生成させる方法は、圧縮装置が大型で高価に
なる欠点を有する。 On the other hand, the method of generating seed crystals by mechanical manipulation such as shear stress has the disadvantage that the compression device is large and expensive.
本発明は上記欠点に鑑みてなされており、その
技術課題は、蓄熱剤入りの密封性容器を開封する
ことなく、容易な操作で過冷解除できる蓄熱剤の
過冷却解除方法を提供することである。 The present invention has been made in view of the above-mentioned drawbacks, and its technical object is to provide a method for canceling supercooling of a heat storage agent, which can cancel supercooling with a simple operation without opening a sealed container containing the heat storage agent. be.
［課題を解決するための手段］
本発明によれば、容器内に封入された過冷却性
質をもつ蓄熱剤を加熱手段により融点以上に加熱
して実質的に液体状態とし、続いて融点以下に冷
却して顕熱を放出させた後該過冷却液体状態の蓄
熱剤に活性化のための刺激を投入して、この蓄熱
剤の種結晶を晶出することによりこの蓄熱剤を結
晶化して潜熱を放出させる過冷却性質をもつ蓄熱
剤の過冷却解除方法において、上記容器の外に、
冷却端と発熱端とを有するペルチエ素子と、この
容器内の蓄熱剤から上記冷却端に熱伝導を行う熱
伝導部材とを設け、上記蓄熱剤のうちこの熱伝導
部材近辺の一部を、上記熱伝導部材を介して、上
記ペルチエ素子によつてこの過冷却温度以下に冷
却して上記蓄熱剤に潜熱を放出させることを特徴
とする過冷却性質をもつ蓄熱剤の過冷却解除方法
が得られる。[Means for Solving the Problems] According to the present invention, a heat storage agent with supercooling properties sealed in a container is heated to a temperature above the melting point by a heating means to substantially liquid state, and then heated to a temperature below the melting point. After cooling and releasing sensible heat, a stimulus for activation is applied to the heat storage agent in the supercooled liquid state to crystallize seed crystals of the heat storage agent, thereby crystallizing the heat storage agent and releasing latent heat. In the method for releasing supercooling of a heat storage agent that has supercooling properties that cause the release of
A Peltier element having a cooling end and a heat generating end is provided, and a heat conduction member that conducts heat from the heat storage agent in the container to the cooling end, and a part of the heat storage agent near the heat conduction member is provided with the heat conduction member. A method for canceling supercooling of a heat storage agent having a supercooling property is obtained, which is characterized in that the heat storage agent is cooled to a temperature below this supercooling temperature by the Peltier element via a heat conductive member, thereby causing the heat storage agent to release latent heat. .
即ち、本発明は、過冷却状態の蓄熱剤の過冷却
解除の誘発方法として、この蓄熱剤が自発的に固
相を生成する温度にて、蓄熱剤の一部に種結晶を
生成せしむることにより、残りの蓄熱剤の固相生
成を生成せしむるものである。ここで、本発明に
おいて、蓄熱剤は酢酸ナトリウム三水和物を主体
とし、多糖類を含有するものが使用できるが、こ
れらに限定されるものではない。 That is, in the present invention, as a method for inducing release of supercooling of a heat storage agent in a supercooled state, seed crystals are generated in a part of the heat storage agent at a temperature at which the heat storage agent spontaneously forms a solid phase. This causes the remaining heat storage agent to form a solid phase. Here, in the present invention, a heat storage agent mainly composed of sodium acetate trihydrate and containing a polysaccharide can be used, but is not limited thereto.
［作用］ 本発明の作用について説明する。[Effect] The operation of the present invention will be explained.
容器内に封入された蓄熱剤を、融点以上に加熱
して、蓄熱させる。 The heat storage agent sealed in the container is heated above its melting point to store heat.
続いて、徐々に融点以下の温度まで降下されて
顕熱を放出させる。このような状態で保持したの
ち、容器外壁部に設けられたペルチエ効果を有す
る素子の低温側を、熱伝導性部材を介して容器壁
に接触させることにより接触部付近の温度を過冷
却解除の温度まで局部冷却し種結晶を生成させ
る。 Subsequently, the temperature is gradually lowered to below the melting point to release sensible heat. After holding in this state, the low-temperature side of the Peltier effect element provided on the outer wall of the container is brought into contact with the container wall via a thermally conductive member, thereby reducing the temperature near the contact area to release supercooling. Locally cooled to temperature to generate seed crystals.
容器内の蓄熱剤は一旦上昇して、融点（転移温
度）に達して固相を形成し、容器外の温度と等し
くなる迄、潜熱を放出し続ける。 The heat storage agent inside the container once rises, reaches its melting point (transition temperature), forms a solid phase, and continues to release latent heat until the temperature becomes equal to the temperature outside the container.
以上のような、制御された蓄熱及び放熱のくり
返し可能である。 It is possible to repeat the controlled heat storage and heat dissipation as described above.
［実施例］ 本発明の実施例を図面を参照して説明する。[Example] Embodiments of the present invention will be described with reference to the drawings.
第１図は本発明を実施するための装置の構成の
一例を示す図である。この図において、蓄熱剤１
は軟質ビニールよりなる容器２内に、電気ヒータ
３とともに封入されている。容器２の外方にペル
チエ素子４が設けられており、このペルチエ素子
４の一端面は、熱伝導性の良好なアルミニウムよ
りなるペルチエ素子の発熱端の放熱を促進させる
放熱フイン５、他端面は吸熱する冷却端で先端部
に微小面積を有するアルミニウムよりなる熱伝導
部材６を介して容器２に連絡する。 FIG. 1 is a diagram showing an example of the configuration of an apparatus for implementing the present invention. In this figure, heat storage agent 1
is enclosed together with an electric heater 3 in a container 2 made of soft vinyl. A Peltier element 4 is provided on the outside of the container 2. One end surface of the Peltier element 4 has a heat radiation fin 5 that promotes heat radiation from the heat generating end of the Peltier element made of aluminum with good thermal conductivity, and the other end surface has a heat dissipation fin 5 that promotes heat radiation from the heat generating end of the Peltier element. The cooling end that absorbs heat is connected to the container 2 via a heat conductive member 6 made of aluminum and having a small area at the tip.
ペルチエ素子４及び熱伝導部材６は、周囲から
の吸熱を防止する目的で断熱材１０に覆われて、
外気からの温度の影響を防いでいる。蓄熱剤１は
融点58℃の過冷却する性質を有する多糖類を含む
酢酸ナトリウム三水和物よりなる。 The Peltier element 4 and the heat conductive member 6 are covered with a heat insulating material 10 for the purpose of preventing heat absorption from the surroundings.
Prevents the influence of temperature from outside air. The heat storage agent 1 is made of sodium acetate trihydrate containing a polysaccharide with a melting point of 58° C. and a supercooling property.
尚、端子７，７′には直流電源、ヒータ３には
ペルチエ素子４の放熱フイン５及び熱伝導部材６
との接合部の接触面は熱伝導性を有するシリコン
グリスが塗布されている。 Note that the terminals 7 and 7' are connected to a DC power supply, and the heater 3 is connected to the heat dissipation fins 5 of the Peltier element 4 and the heat conduction member 6.
The contact surface of the joint with the connector is coated with thermally conductive silicone grease.
次に、装置の動作について説明する。 Next, the operation of the device will be explained.
容器２内に封入された蓄熱剤をヒータ８を通電
して融点58℃以上の温度まで加熱して蓄熱剤を液
体状とする。次にヒータ電源をOFFして、加熱
を中止すると、蓄熱剤は徐々に冷却し、融点を以
下の周囲温度まで液体状態のままで過冷却する。 The heat storage agent sealed in the container 2 is heated to a temperature higher than the melting point of 58° C. by energizing the heater 8 to make the heat storage agent into a liquid state. Next, when the heater power is turned off and heating is stopped, the heat storage agent gradually cools and supercools while remaining in a liquid state until its melting point reaches the ambient temperature.
この過冷却状態の蓄熱剤より潜熱を取り出すに
は、ペルチエ素子に端子７，７′より直流を通電
すると、ペルチエ素子の放熱フイン５側が発熱
し、熱伝導部材側が吸熱し、熱伝導部材の先端微
小面積部分に接触部分から容器内蓄熱剤が更に冷
却されて、−10℃〜−12℃より降下すると、この
部分で凝結し、この部分近辺より角激に昇温する
と術次過冷却解除凝結し、58℃まで上昇し、58℃
で潜熱を放出し続ける。本実施例で使用した蓄熱
剤の冷却による過冷却解除の温度は通常は−10゜
〜−12℃で、−15℃以下の温度とすると100％過冷
却が解除される。 In order to extract latent heat from the heat storage agent in this supercooled state, when direct current is applied to the Peltier element from terminals 7 and 7', the heat dissipating fin 5 side of the Peltier element generates heat, the heat conduction member side absorbs heat, and the tip of the heat conduction member The heat storage agent inside the container is further cooled from the part that comes into contact with the small area, and when it drops below -10℃ to -12℃, it condenses in this area, and when the temperature rises rapidly from around this area, it is removed from the surgical supercooling and condenses. and rose to 58℃, 58℃
continues to release latent heat. The temperature at which supercooling is released by cooling the heat storage agent used in this example is usually -10° to -12°C, and if the temperature is -15°C or lower, 100% supercooling is released.
そして、本発明は、深夜電力を利用し、蓄熱し
て必要時に熱を供給する住宅暖房器、ヒートポン
プユニツトの立上り能力増加、カーヒーターの即
暖房用に有効に利用できる。 Further, the present invention can be effectively used for home heaters that utilize late-night electricity to store heat and supply heat when needed, to increase the start-up capacity of heat pump units, and for instant heating of car heaters.
［発明の効果］
以上述べた通り、本発明の過冷却解除方法によ
れば、ペルチエ素子を使用しているために、電流
制御が可能である。又、蓄熱剤の加熱には電気ヒ
ータを設ければ蓄熱及び放熱は全て電気により自
動化等の制御対応ができる。[Effects of the Invention] As described above, according to the supercooling release method of the present invention, current control is possible because a Peltier element is used. Furthermore, if an electric heater is provided to heat the heat storage agent, all heat storage and heat radiation can be controlled automatically using electricity.
本発明の過冷却解除方法によれば、密閉性容器
内の蓄熱剤に外気の接触を持たせないので、蓄熱
剤の変質等を防止でき蓄熱剤が半永久的に使用で
きる。 According to the supercooling release method of the present invention, since the heat storage agent in the airtight container is not brought into contact with outside air, deterioration of the heat storage agent can be prevented and the heat storage agent can be used semi-permanently.
更に、本発明の過冷却性質をもつ蓄熱剤の過冷
却解除方法によれば確実に過冷却解除ができる。 Further, according to the method of canceling supercooling of a heat storage agent having supercooling properties of the present invention, supercooling can be reliably canceled.
第１図は本発明を実施する為の装置の構成の一
例を示す図である。
図中１は蓄熱剤、２は容器、３はヒータ、４は
ペルチエ素子、５は放熱フイン、６は熱伝導部
材、７及び７′は電源端子、８は電源、１０は断
熱材である。
FIG. 1 is a diagram showing an example of the configuration of an apparatus for implementing the present invention. In the figure, 1 is a heat storage agent, 2 is a container, 3 is a heater, 4 is a Peltier element, 5 is a heat radiation fin, 6 is a heat conductive member, 7 and 7' are power terminals, 8 is a power source, and 10 is a heat insulating material.
Claims (1)
を、加熱手段により融点以上に加熱して実質的に
液体状態とし、続いて融点以下に冷却して顕熱を
放出させた後、該過冷却液体状態の蓄熱剤に活性
化のための刺激を投入して、該蓄熱剤の種結晶を
晶出することにより該蓄熱剤を結晶化させて潜熱
を放出させる過冷却性質をもつ蓄熱剤の過冷却解
除方法において、上記容器の外に、冷却端と発熱
端とを有するペルチエ素子と、該容器内の蓄熱剤
から上記冷却端に熱伝導を行う熱伝導部材とを設
け、上記蓄熱剤のうち上記ペルチエ素子により上
記蓄熱材の上記熱伝導部材近辺の一部を該過冷却
温度以下に冷却して、上記蓄熱剤に潜熱を放出さ
せることを特徴とする過冷却性質をもつ蓄熱剤の
過冷却解除方法。1. A heat storage agent with supercooling properties sealed in a container is heated to a temperature above its melting point by a heating means to a substantially liquid state, and then cooled to a temperature below its melting point to release sensible heat. A heat storage agent having a supercooling property that crystallizes the heat storage agent and releases latent heat by injecting a stimulus for activation into the heat storage agent in a cooling liquid state and crystallizing the seed crystal of the heat storage agent. In the supercooling cancellation method, a Peltier element having a cooling end and a heat generating end is provided outside the container, and a heat conduction member that conducts heat from the heat storage agent in the container to the cooling end, and the heat storage agent is heated. Among them, a supercooling of a heat storage agent having a supercooling property characterized in that a part of the heat storage material near the heat conductive member is cooled to below the supercooling temperature by the Peltier element, and the latent heat is released to the heat storage material. How to release cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63156015A JPH026587A (en) | 1988-06-25 | 1988-06-25 | Release of supercooling heat-storage material from supercooled state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63156015A JPH026587A (en) | 1988-06-25 | 1988-06-25 | Release of supercooling heat-storage material from supercooled state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH026587A JPH026587A (en) | 1990-01-10 |
| JPH0548799B2 true JPH0548799B2 (en) | 1993-07-22 |
Family
ID=15618451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63156015A Granted JPH026587A (en) | 1988-06-25 | 1988-06-25 | Release of supercooling heat-storage material from supercooled state |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH026587A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3588630B2 (en) * | 2000-09-06 | 2004-11-17 | 独立行政法人産業技術総合研究所 | Heat storage type heating element |
| JP5995755B2 (en) * | 2012-03-16 | 2016-09-21 | 国立大学法人 東京大学 | Thermal storage material and heat utilization system using the same |
-
1988
- 1988-06-25 JP JP63156015A patent/JPH026587A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH026587A (en) | 1990-01-10 |
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