JPH03286982A - Apparatus and method for accumulating cold for holding substance cold - Google Patents
Apparatus and method for accumulating cold for holding substance coldInfo
- Publication number
- JPH03286982A JPH03286982A JP8855590A JP8855590A JPH03286982A JP H03286982 A JPH03286982 A JP H03286982A JP 8855590 A JP8855590 A JP 8855590A JP 8855590 A JP8855590 A JP 8855590A JP H03286982 A JPH03286982 A JP H03286982A
- Authority
- JP
- Japan
- Prior art keywords
- cold storage
- cold
- filling container
- storage device
- storage agent
- 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
- 239000000126 substance Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 4
- 238000003860 storage Methods 0.000 claims abstract description 40
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 239000011232 storage material Substances 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 238000004781 supercooling Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 7
- 235000011089 carbon dioxide Nutrition 0.000 description 5
- 230000004927 fusion Effects 0.000 description 5
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Packages (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は物質保冷用蓄冷装置及びその蓄冷方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cold storage device for keeping materials cold and a cold storage method thereof.
（従来の技術）
極低温での運搬あるいは保管が必要な、例えば臓器や血
液等の物質を保冷する際に保冷容器内に入れて使用する
蓄冷剤としては、従来、昇華熱を利用するドライアイス
が広く用いられており、その蓄冷温度は約−８０℃、そ
して蓄冷熱量は大気圧下で約１３７ｋｃａｌ／ｋｇであ
る。また、この他の蓄冷剤としては、エタノールまたは
エタノールと水との混合液を主成分とするエタノール系
蓄冷剤やメタノール系蓄冷剤が知られており、前者のエ
タノール系蓄冷剤は結晶の融解潜熱を利用することによ
リ、蓄冷温度として例えば約−１２０℃、蓄冷熱量とし
て約３０ｋｃａｌ／ｋｇが得られる。(Prior art) Dry ice, which utilizes heat of sublimation, has conventionally been used as a cold storage agent that is placed in a cold storage container to keep materials that need to be transported or stored at extremely low temperatures, such as organs or blood, kept cold. is widely used, its cold storage temperature is about -80°C, and its cold storage heat amount is about 137 kcal/kg at atmospheric pressure. In addition, as other cold storage agents, ethanol-based cold storage agents and methanol-based cold storage agents, which are mainly composed of ethanol or a mixture of ethanol and water, are known. By utilizing this, for example, a cold storage temperature of about -120° C. and a cold storage heat amount of about 30 kcal/kg can be obtained.
（発明が解決しようとする課題）
ドライアイスを保冷容器内に入れて蓄冷剤として利用す
る場合には、気化した炭酸ガスを保冷容器から抜く必要
があり、その手段が必要であるという欠点がある。(Problem to be Solved by the Invention) When dry ice is placed in a cold storage container and used as a cold storage agent, it is necessary to extract vaporized carbon dioxide from the cold storage container, and there is a drawback that a means for doing so is required. .
また、エタノール系蓄冷剤やメタノール系蓄冷剤は、上
述したように冷却によって結晶化させ、その融解潜熱の
利用を図るものであるが、これを単に冷却しても、過冷
却状態の高粘度液となってしまって結晶化がし難く、従
ってこの蓄冷剤を単に充填容器内に充填して蓄冷装置を
構成しても融解潜熱の利用が離しいという課題がある。Furthermore, as mentioned above, ethanol-based and methanol-based refrigerants are crystallized by cooling, and the latent heat of fusion is utilized. As a result, it is difficult to crystallize, and therefore, even if a cold storage device is constructed by simply filling this cold storage agent into a filling container, there is a problem that it is difficult to utilize the latent heat of fusion.
本発明は以上の従来の課題を解決することを目的とする
ものである。The present invention aims to solve the above-mentioned conventional problems.
（１１題を解決するための手段）
上述した課題を解決するための手段を説明すると、まず
本発明は、内部に撹拌部材４を固定した充填容器ｌ内に
、単に冷却しただけでは過冷却状態となって結晶化し畦
い蓄冷剤５を充填して蓄冷装置を構成したものである。(Means for Solving Problem 11) To explain the means for solving the above-mentioned problems, first of all, the present invention provides a method for solving the above-mentioned problem. A cold storage device is constructed by filling the cold storage agent 5 with crystallized ridges.
上記の構成に於いて、撹拌部材４は突起や板状部材等、
適宜の構成とすることができるが、スクリュー状羽根３
や翼車状羽根８を利用した構成とすると効果的である。In the above configuration, the stirring member 4 includes a protrusion, a plate-like member, etc.
Although it can have an appropriate configuration, the screw-like blade 3
It is effective to adopt a configuration that utilizes blades 8 or blades 8.
そして本発明は、上記の蓄冷装置を回転させながら冷却
して蓄冷を行わせるようにしたものである。According to the present invention, the above-mentioned cold storage device is cooled and stored while rotating.
上述した蓄冷剤としては、エタノール系蓄冷剤やメタノ
ール系蓄冷剤を使用することができる。As the above-mentioned cold storage agent, an ethanol-based cold storage agent or a methanol-based cold storage agent can be used.
（作用）
上記の蓄冷装置を構成する充填容器ｌを回転させると、
充填容器１内には撹拌部材４が固定しであるため、充填
している蓄冷剤５が流動し、撹拌される。(Function) When the filling container l that constitutes the above-mentioned cold storage device is rotated,
Since the stirring member 4 is fixed in the filling container 1, the filled cold storage agent 5 flows and is stirred.
この蓄冷剤５は上述した通り、単に冷却しても過冷却状
態の高粘度液となってしまって結晶化がし難いのである
が、冷却と共に撹拌すると容易に結晶化する性質がある
。As described above, even if the cool storage agent 5 is simply cooled, it becomes a supercooled, highly viscous liquid and is difficult to crystallize, but it has the property of easily crystallizing when stirred together with cooling.
従って、蓄冷装置を構成する充填容器ｌを前述したよう
に回転させながら冷却することにより、内部に充填して
いる蓄冷剤５を撹拌しながら冷却することができ、容易
に結晶化させることができ、その融解潜熱を有効に蓄冷
に利用することができる。この撹拌は、充填容器１を回
転させれば良いので操作が容易である。尚、撹拌部材４
はスクリュー状羽根３や翼車状羽根８を利用した構成と
して、充填容器１内部の蓄冷剤５を循環流動させるよう
にすれば、均一な撹拌を行うことができる。Therefore, by cooling the filling container l constituting the cold storage device while rotating it as described above, the cold storage agent 5 filled inside can be cooled while being stirred, and can be easily crystallized. , the latent heat of fusion can be effectively used for cold storage. This stirring can be easily performed by simply rotating the filling container 1. In addition, the stirring member 4
If the refrigerant 5 inside the filling container 1 is made to circulate and flow using a configuration using screw-like blades 3 or wheel-like blades 8, uniform stirring can be achieved.
（実施例） 次に本発明の実施例を図について説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
まず、第１図に示す実施例に於いて、符号１ａは充填容
器であり、この充填容器１ａは長円筒形状に構成してい
る。この充填容器ｌａ内には、パイプ２の外周にスクリ
ュー状羽根３を設けた撹拌部材４を固定している。そし
てこの充填容器ｌａ内にエタノール系蓄冷剤やメタノー
ル系蓄冷剤等の、単に冷却しただけでは過冷却状態とな
って結晶化し難い蓄冷剤５を充填している。First, in the embodiment shown in FIG. 1, reference numeral 1a denotes a filling container, and this filling container 1a has an elongated cylindrical shape. A stirring member 4 having screw-like blades 3 provided on the outer periphery of the pipe 2 is fixed in the filling container la. The filling container la is filled with a cold storage agent 5, such as an ethanol-based cold storage agent or a methanol-based cold storage agent, which becomes a supercooled state and is difficult to crystallize simply by cooling.
以上の構成に於いて、充填容器１ａを適宜の回転装置に
より、図示するように軸６ａの回りに回転すると、内部
の蓄冷剤５は、スクリュー状羽根３に推進されて左方向
に移動する。こうして、充填容器１ａの左端に至った蓄
冷剤５は、次いでパイプ２内に流入し、このパイプ２内
を流れて充填容器１ａの右端に還流する。このようにし
て、蓄冷剤５は、充填容器ｌａ内を循環移動して撹拌さ
れる。In the above configuration, when the filling container 1a is rotated around the shaft 6a as shown in the figure by a suitable rotation device, the internal cold storage agent 5 is propelled by the screw-like blades 3 and moves to the left. In this way, the cold storage agent 5 that has reached the left end of the filling container 1a then flows into the pipe 2, flows through the pipe 2, and flows back to the right end of the filling container 1a. In this way, the cold storage agent 5 is circulated and stirred within the filling container la.
従ってこのように充填容器１ａを回転させながら、これ
に例えば液化窒素等の冷却媒体７を噴出する等により冷
却すれば、充填容器ｌａ内の蓄冷剤５は、過冷却によっ
て高粘度液となってしまうという現象の発生が防止され
容易に結晶化する。Therefore, if the filling container 1a is rotated in this manner and cooled by jetting the cooling medium 7 such as liquefied nitrogen into it, the cold storage agent 5 in the filling container 1a will become a high viscosity liquid due to supercooling. This prevents the phenomenon of storage and facilitates crystallization.
次に第２図に示す実施例に於いて、符号１ｂは充填容器
であり、この充填容器１ｂは扁平円筒形状に構成してい
る。そしてこの充填容器ｌｂ内には翼車状羽根８を固定
しており、この翼車状羽根８の一端側には仕切板９を設
け、この仕切板９と充填容器１ｂの一側の壁面間に流動
用間隙部１０を構成すると共に、仕切板９には中心側に
連通用開口部１１を形成している。そして前述と同様に
、この充填容器ｌｂ内に、単に冷却しただけでは過冷却
状態となって結晶化し難い蓄冷剤５を充填している。Next, in the embodiment shown in FIG. 2, reference numeral 1b denotes a filling container, and this filling container 1b has a flat cylindrical shape. A wheel-shaped blade 8 is fixed in the filling container lb, and a partition plate 9 is provided on one end side of the blade wheel-shaped blade 8, and a space between the partition plate 9 and the wall surface on one side of the filling container 1b is A flow gap 10 is formed in the partition plate 9, and a communication opening 11 is formed in the center of the partition plate 9. As described above, this filling container lb is filled with the cold storage agent 5, which becomes supercooled and is difficult to crystallize simply by cooling.
以上の構成に於いて、充填容器１ｂを図に示すように軸
６ｂの回りに回転すると、周側の蓄冷剤５は、翼車状羽
根８に沿って中心方向に移動する。In the above configuration, when the filling container 1b is rotated around the shaft 6b as shown in the figure, the cold storage agent 5 on the circumferential side moves toward the center along the blades 8.
次いで中心側に至った蓄冷剤５は、開口部１１から仕切
板９の外側の流動用間隙部１０に至り、この流動用間隙
部１０を流れて充填容器１ｂの周側に還流する。このよ
うにして蓄冷剤５は、前述の実施例と同様に、充填容器
ｌｂ内を循環移動して撹拌される。従って前述と同様に
充填容器１ｂを回転させながら冷却することにより、内
部に充填している蓄冷剤５を容易に結晶化することがで
きる。Next, the cool storage agent 5 that has reached the center reaches the flow gap 10 on the outside of the partition plate 9 through the opening 11, flows through the flow gap 10, and flows back to the circumferential side of the filling container 1b. In this way, the cold storage agent 5 is circulated and stirred within the filling container lb, similar to the above-described embodiment. Therefore, by cooling the filling container 1b while rotating it as described above, the cool storage agent 5 filled inside can be easily crystallized.
以上の実施例に於いては、撹拌部材４は蓄冷剤５を充填
容器１内に循環移動させる構成としているので、撹拌効
果が良好であるが、この他場合によっては、突起や板状
部材等、適宜の構成とすることができる。また充填容器
の形状も角形形状等適宜である。そしてこれらの部材の
材質も適宜である。In the above embodiment, the stirring member 4 is configured to circulate and move the cold storage agent 5 into the filling container 1, so the stirring effect is good. , it can be configured as appropriate. Further, the shape of the filling container may be any suitable shape, such as a square shape. The materials of these members are also appropriate.
しかして、以上の如く充填容器１の内部の蓄冷剤５を結
晶化した後、充填容器１を保冷容器等に収納することに
より、例えば臓器や血液等の物質や、食品その他の物品
の運搬等に際して保冷を行うことができる。本発明はこ
のように、蓄冷剤５を結晶化しているので、その融解潜
熱を利用することができ、例えばこの蓄冷剤をエタノー
ル系蓄冷剤とすると、蓄冷温度として前述のドライアイ
スよりも低い、例えば約−１２０℃、そして蓄冷熱量と
して約３０ｋｃａｌ／ｋｇが得られる。After the cold storage agent 5 inside the filling container 1 is crystallized as described above, the filling container 1 is stored in a cold storage container or the like, so that substances such as organs and blood, food, and other goods can be transported, etc. It is possible to keep it cold during this time. Since the present invention crystallizes the cold storage agent 5 in this way, its latent heat of fusion can be utilized. For example, if this cold storage agent is an ethanol-based cold storage agent, the cold storage temperature will be lower than the above-mentioned dry ice. For example, about -120° C. and about 30 kcal/kg of cold storage heat can be obtained.
（発明の効果）
本発明は以上の通り、単に冷却しただけでは過冷却状態
となって結晶化し難い蓄冷剤を充填容器内に充填し、こ
の蓄冷剤を容易に結晶化することができるので、例えば
この蓄冷剤としてエタノール蓄冷剤を使用すると、その
融解潜熱を利用することにより、例えば約−１２０℃と
、ドライアイスよりも低い蓄冷温度を得ることができ、
またがかるエタノール系蓄冷剤等を使用することにより
安価であると共に安定性、安全性に優れ、ドライアイス
のように気化したガスを除去するというようなことも必
要なく、取り扱いが容易であるという効果がある。特に
本発明では、蓄冷剤の撹拌は、充填容器自体を回転して
、内部に固定している撹拌部材により行うので、例えば
充填容器内に撹拌部材を回転自在に支持して、これを外
部から回転駆動するような構成と比較して、製作が非常
に容易で大量生産にも適し、安価に構成することができ
るという効果がある。こうして、本発明は極低温での運
搬等が必要な、例えば臓器や血液等の物質や、食品その
他の物品の運搬等に際して保冷容器内に収納することに
より簡便に保冷を行うことができるという効果がある。(Effects of the Invention) As described above, the present invention can fill a filling container with a cold storage agent that is difficult to crystallize due to a supercooled state by simply cooling it, and can easily crystallize this cold storage agent. For example, if an ethanol cold storage agent is used as the cold storage agent, by utilizing its latent heat of fusion, it is possible to obtain a cold storage temperature of, for example, about -120°C, which is lower than dry ice.
By using ethanol-based refrigerant, etc., it is inexpensive, has excellent stability and safety, and there is no need to remove vaporized gas like dry ice, making it easy to handle. There is. In particular, in the present invention, the cold storage agent is stirred by rotating the filling container itself and using a stirring member fixed inside. Compared to a rotationally driven configuration, this has the advantage that it is extremely easy to manufacture, suitable for mass production, and can be constructed at low cost. Thus, the present invention has the effect that when transporting substances such as organs and blood, foods, and other goods that require transport at extremely low temperatures, it is possible to easily keep them cold by storing them in a cold container. There is.
尚、本発明の物質保冷用蓄冷装置は、蓄熱状態に於いて
販売し、使用後に回収して再使用に供することも容易で
あり、非常に安価な冷熱提供が可能である。In addition, the cold storage device for material cold storage of the present invention can be easily sold in a heat storage state, collected after use, and reused, and can provide cold heat at a very low cost.
第１図は本発明の一実施例を表した説明的縦断面図であ
り、第２図（ａ）、（ｂ）は夫々本発明の他の実施例を
表した説明的縦断面図、説明的横断面図であり、（ａ）
は（ｂ）のＸ−Ｘ線の断面に対応する。
符号１ （ｌａ、ｌｂ）・・充填容器、２・・パイプ
、３・・・スクリュー状羽根、４・・撹拌部材、５・・
・蓄冷剤、６ａ、６ｂ・・・軸、７・・・冷却媒体、８
・・・翼車状羽根、９・・仕切板、ｌＯ・・・流動用間
隙部、１１・・・連通用開口部。
廖
１
図
第２図（ａ）
１
第２図（ｂ）FIG. 1 is an explanatory longitudinal cross-sectional view showing one embodiment of the present invention, and FIGS. 2(a) and (b) are explanatory longitudinal cross-sectional views showing other embodiments of the present invention, respectively. (a)
corresponds to the cross section taken along line X-X in (b). Code 1 (la, lb)... Filling container, 2... Pipe, 3... Screw-shaped blade, 4... Stirring member, 5...
・Cold storage agent, 6a, 6b...Shaft, 7...Cooling medium, 8
... impeller-like blade, 9 ... partition plate, lO ... gap for flow, 11 ... opening for communication. Liao 1 Figure 2 (a) 1 Figure 2 (b)
Claims (6)
却しただけでは過冷却状態となって結晶化し難い蓄冷剤
を充填したことを特徴とする物質保冷用蓄冷装置(1) A cold storage device for keeping substances cold, characterized in that a cold storage agent that does not easily become supercooled and crystallize when simply cooled is filled in a filled container with a stirring member fixed therein.
に、撹拌部材はパイプの外周にスクリュー状羽根を設け
た構成としたことを特徴とする物質保冷用蓄冷装置(2) A cold storage device for keeping substances cold, characterized in that the filling container according to claim 1 has an elongated cylindrical shape, and the stirring member has a screw-like blade provided on the outer periphery of the pipe.
共に、撹拌部材は翼車状羽根と、該翼車状羽根の一端側
に設けた仕切板とから構成し、該仕切板は前記充填容器
の一側の壁面との間に流動用間隙部を構成すると共に、
中央部に連通用開口部を形成したことを特徴とする物質
保冷用蓄冷装置(3) The filling container according to claim 1 is constructed in a flat cylindrical shape, and the stirring member is composed of a wheel-like blade and a partition plate provided at one end side of the blade-like blade, and the partition plate is arranged in the shape of a flat cylinder. A flow gap is formed between the wall surface on one side of the filling container, and
A cold storage device for keeping materials cool, characterized by having a communication opening formed in the center.
ら冷却して蓄冷を行わせることを特徴とする物質保冷用
蓄冷装置の蓄冷方法(4) A method for storing cold in a cold storage device for material cold storage, characterized in that the cold storage device according to claim 1, 2 or 3 is cooled and stored while rotating.
ことを特徴とする物質保冷用蓄冷装置(5) A cold storage device for material cold storage, characterized in that the cold storage agent according to claim 1 is an ethanol-based cold storage agent.
ことを特徴とする物質保冷用蓄冷装置(6) A cold storage device for material cold storage, characterized in that the cold storage agent according to claim 1 is a methanol-based cold storage agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8855590A JPH03286982A (en) | 1990-04-03 | 1990-04-03 | Apparatus and method for accumulating cold for holding substance cold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8855590A JPH03286982A (en) | 1990-04-03 | 1990-04-03 | Apparatus and method for accumulating cold for holding substance cold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03286982A true JPH03286982A (en) | 1991-12-17 |
Family
ID=13946115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8855590A Pending JPH03286982A (en) | 1990-04-03 | 1990-04-03 | Apparatus and method for accumulating cold for holding substance cold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03286982A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005506409A (en) * | 2001-10-16 | 2005-03-03 | スパチル・テクノロジーズ・ピーティワイ・リミテッド | Supercoolable composition having a long duration phase change function, method of making the same, and method of supercooling the supercoolable composition and products comprising the same |
| JP2019120429A (en) * | 2017-12-28 | 2019-07-22 | 下田 一喜 | Cold storage item, cargo, transport equipment, transport method, and cold storage method |
-
1990
- 1990-04-03 JP JP8855590A patent/JPH03286982A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005506409A (en) * | 2001-10-16 | 2005-03-03 | スパチル・テクノロジーズ・ピーティワイ・リミテッド | Supercoolable composition having a long duration phase change function, method of making the same, and method of supercooling the supercoolable composition and products comprising the same |
| JP2019120429A (en) * | 2017-12-28 | 2019-07-22 | 下田 一喜 | Cold storage item, cargo, transport equipment, transport method, and cold storage method |
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