閉容器内における冷媒と蓄熱財の直接接触伝熱を利用する氷蓄冷の研究

概要

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A cold energy storage method having excellent heat transfer characteristics was proposed, utilizing natural circulation of a refrigerant. Three layers, i. e., a refrigerant vapor(R 12 or R 114) layer, a water layer and a refrigerant liquid layer stratified in this order from the top were kept in an enclosure composed of a condenser, an evaporator and a condensate receiver-and-return tube. Direct contact heat transfers of a refrigerant with phase change were applied both for the cold energy storage and release processes. In the storage process, the refrigerant liquid vaporizes at the refrigerant liquid-water interface with the formation of ice, the vapor condenses at the condensing surface and the condensate returns to the refrigerant liquid layer simultaneously. In the release process, the refrigerant liquid vaporizes at the vaporizing surface, the vapor condenses on the ice with melting, and the condensate and melted water returns to the original layers simultaneously. It was confirmed by the measurements that rapid ice formation and melting were realized.
社団法人日本機械学会の論文
1987-12-25