Journal
KAGAKU KOGAKU RONBUNSHU
Volume 38, Issue 3, Pages 172-175Publisher
SOC CHEMICAL ENG JAPAN
DOI: 10.1252/kakoronbunshu.38.172
Keywords
Chemical Heat Pump; Chemical Heat Storage; Hydration Reaction; Cycle Operation
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CaO/H2O chemical heat pumps need higher temperature than the theoretical equilibrium temperature in heat-storage step. It was reported that the heat-storage temperature can be decreased by adding a metal halide to magnesium oxide. In this study, the output power characteristics of a chemical heat pump with a compound reactant of calcium oxide and lithium chloride were evaluated experimentally using equipment that can repeat reaction and regeneration. Output was found to be possible by using the reactant at the heat-storage temperature of 643-663 K, at which output with calcium oxide and moisture alone is not possible. In addition, little degradation in the power density and utilization of reactant was confirmed during a continual test of 100 cycles.
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