C302 PARAMETRIC STUDY ON PERFORMANCE OF A CO_2 HEAT PUMP WATER HEATING SYSTEM UNDER A DAILY CHANGE IN A STANDARDIZED DEMAND(Heat Pump-1)
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概要
- 論文の詳細を見る
Air-to-water heat pumps using CO_2 as a refrigerant have been developed. In addition, water heating systems each of which combines a CO_2 heat pump with a hot water storage tank have been commercialized, and are expected to contribute to energy saving in residential hot water supply. In this paper, the system performance of a water heating system is analyzed under a daily change in a standardized hot water demand. Especially, parametric studies are conducted by changing ambient and operation temperatures as well as magnitude of change in hot water demand. Some features of the temperature distribution in the storage tank and the system performance criteria such as heat pump coefficient of performance, storage and system efficiencies, and volumes of stored and unused hot water are clarified.
- 一般社団法人日本機械学会の論文
- 2009-11-16
著者
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Yokoyama Ryohei
Department Of Energy Systems Engineering Osaka Prefecture University
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WAKUI Tetsuya
Department of Mechanical Engineering, Osaka Prefecture University
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TAKEMURA Kazuhisa
Research and Development Department, Kansai Electric Power Co., Inc.
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Takemura Kazuhisa
Research And Development Department Kansai Electric Power Co. Inc.
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Wakui Tetsuya
Department Of Mechanical Engineering Osaka Prefecture University
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Yokoyama Ryohei
Department of Mechanical Engineering, Osaka Prefecture University
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