RELEASE OF SUPERCOOLING HEAT-STORAGE MATERIAL FROM SUPERCOOLED STATE

摘要

PURPOSE:To release a heat-storage material from a supercooled state easily without opening the sealed container in which the heat-storage material is sealed. CONSTITUTION:A Peltier element 4 connected to a heat dissipation fin 5 on one end and connected to a heat-conductive member on the other end is provided outside a container 2 in which a heat-storage material 1 and an electrical heater 3 are sealed, and the heat-conductive agent 6 and the Peltier element 4 are covered with an insulation material 10. After the heat-storage material 1 is liquefied by applying a current to the heater 3, the heating is stopped by switching off a power source 8 of the heater, and the heat-storage material 1 is cooled to the ambient temperature below its melting point to bring it into a supercooled state in which it is kept in a liquid state. The side of the heat dissipation fin 5 of the Peltier element is heated by applying a direct current to the terminals 7 of the element 4, and the heat-conductive material 6 is allowed to absorb heat. The heat-storage material 1 further cooled through the part in contact with the tip small-area part of the heat conductive member 6 to lower its temperature to -10 to -12 deg.C to condense it at this part, and its temperature is quickly raised from this area or near to gradually release it from a supercooled state.