Thermal Energy Storage, Heat Pump and Thermal Energy Transportation Technologies. Heat Output Performance Study of Magnesium Oxide/Water Chemical Heat Pump.

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  • 蓄熱・ヒートポンプ・熱輸送　　酸化マグネシウム／水系ケミカルヒートポンプの熱出力性能の検討
  • サンカ マグネシウム ミズケイ ケミカルヒートポンプ ノ ネツ シュツリョク

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Abstract

The heat output performance of a magnesium oxide/water chemical heat pump is studied using a newly developed reaction material which has high durability under repetitive reaction. A reactor bed having 1.8 kg of reactant is examined for the hydration and dehydration of magnesium oxide. The repetitive reactivity of the reactor is demonstrated through a nine cycles repetitive reaction. Although initial reduction in reactivity is observed, the following cycles maintain stable reactivity. From a high-temperature output experiment, output at 110 and 130°C is achieved using saturated steam at 70 and 80°C, respectively. These results suggest the possibility of steam supply system using the heat pump. The heat output performance of the heat pump is discussed from the experimental results.

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