PURPOSE: To maintain advantages of a latent heat energy storage type heat accumulator and enhance a heat energy storage effect, by connecting a heat energy accumulator which employs a high-melting heat energy storage material to a heat energy accumulator which employs a low-melting heat energy storage material and passing a gas through the accumulators in a specified order for storage and release of heat.
CONSTITUTION: First latent heat accumulators 1, 1', second accumulators 2, 2' and third accumulators 3, 3' employ NaF (melting point: 650°C), Zn (melting point: 420°C) and Sn (melting point: 232°C), respectively, as heat energy storage material and they are connected in the order of 1, 2, 3, 1', 2' and 3'. As an air-diluted exhaust gas of combustion at 850°C is passed from the accumulator 1 or 1' side, heat energy storage materials in 1W3 and 1'W3' are fused for efficient storage of heat energy. The temperature of the gas at the outlets of the accumulators 3, 3' is reduced to about 250°C. For release of heat from the accumulators 1W3 or 1'W3', air is passed from the accumulator 3 or 3' side for cooling and solidification of the heat energy storage material in 3W1 or 3W3'.
| JPH09296163 | ENDOTHERMICALLY HEAT STORAGE MATERIAL |
| JPS5611983 | HEAT GENERATING AGENT |
TERAMOTO TOYOKAZU
FUJIBAYASHI TERUO
