新冷媒対応技術 家庭用Ｃ０２ヒートポンプ給湯機の開発 試作機の開発と性能評価:試作機の開発と性能評価
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概要
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Environmental protection is becoming more important and heat pumps with natural working fluids are being developed eagerly. On the other hand, in Japan, the demand for hot tap water accounts for about one third of residential final energy consumption, but most of this demand is met by direct combustion of fossil fuel. So it is very effective for saving energy to develop highly efficient heat pumps for hot tap water supply. Under such a circumstance, the development of CO<SUB>2</SUB> heat pump water heater for residential use was started. The components, such as a compressor, heat exchangers etc. were developed. The prototype, which consists of these components, was designed and made. In this paper, we describe the outline of the prototype heat pump unit and its experimental results including its characteristic and performance. Also the year1y average COP on Tokyo condition was estimated from these studies and it was clarified that the average COP was over 3. The developed CO<SUB>2</SUB> heat pump water heater can achieve high efficiency and is very promising.
- 公益社団法人 日本冷凍空調学会の論文
公益社団法人 日本冷凍空調学会 | 論文
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