| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently utilize recovered heat in a temperature region of a wide range in a heat storage device utilizing alkaline-earth metal oxide. Ž<P>SOLUTION: This heat storage device 1 includes a first storage chamber 11 storing water, a second storage chamber 12 storing CaO, a third storage chamber 13 storing MgO, a passage 15 which connects the first storage chamber 11 and the second storage chamber 12 and in which the water from the first storage chamber 11 is circulated, an opening/closing valve 25 disposed in the passage 15 for blocking the circulation of the water, steam piping 16, 17, 18 connecting the first storage chamber 11, the second storage chamber 12 and the third storage chamber 13 to circulate water vapor, a control valve 27 disposed in the steam piping 17 and controlling the circulation of the water, a C/U (control unit) 19 for controlling the opening/closing valve 25 and the control valve 27, piping 14 through which oil for recovering the heat generated by hydration reaction of oxide in the second storage chamber 12 and the third storage chamber 13, passes, and an exhaust pipe 2 through which an exhaust gas applying heat to the second storage chamber 12 and the third storage chamber 13 passes. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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