| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a heating efficiency in a heat storage device in which a plurality of alkaline earth metallic oxides are mixed and housed in a reactor. <P>SOLUTION: This heat storage device includes a water chamber 10, a reactor 20 housing first alkaline earth metallic oxide and second alkaline earth metallic oxide, a passage 40 connecting the water chamber 10 and the reactor 20, and circulating water, a control valve 42 opening/closing the passage, and a control means 60 controlling opening/closing of the control valve 42. The substance quantity of the first alkaline earth metallic oxide is set so that the temperature in the reactor 20 rises to a temperature greater than or equal to a second temperature activating a second hydration reaction, which is the reaction between the second alkaline earth metallic oxide and water, from a first temperature, which is the temperature before the occurrence of a first hydration reaction, which is the reaction between the first alkaline earth metallic oxide and water, when the first hydration reaction occurs. <P>COPYRIGHT: (C)2011,JPO&INPIT |
