エジェクタサイクルを適用した自然冷媒(CO_2)ヒートポンプ給湯機の開発(FP4 省エネルギー・小型分散・コジェネ技術)

概要

論文の詳細を見る
As an environmental protection measure, public attention is now focusing on improving the energy savings of residential water heating, which accounts for about one-third of total household energy consumption. One practical solution is to promote expanded use of "EcoCute," a high efficiency heat pump water heater using a natural refrigerant (CO_2). As part of our efforts to increase the popularity of EcoCute, we have developed the world's first variable ejector refrigeration cycle technology for CO_2 refrigerants. This technology enables more efficiently designed, larger-capacity water heating systems that can supply hot water for floor heating and other purposes as well as, standard hot water systems. The key technologies are variable nozzle ejector, optimized heat exchangers.
一般社団法人日本機械学会の論文
2004-06-22