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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Coefficient of performance ： ウィキペディア英語版 Coefficient of performance The coefficient of performance or COP (sometimes CP) of a heat pump is a ratio of heating or cooling provided to work required.〔http://www.tetech.com/temodules/graphs/instructions.pdf〕〔http://us.grundfos.com/service-support/encyclopedia-search/cop-coefficient-ofperformance.html〕 Higher COPs equate to lower operating costs. The COP may exceed 1, because, instead of just converting work to heat (which, if 100% efficient, would be a COP of 1), it pumps additional heat from a heat source to where the heat is required. For complete systems, COP should include energy consumption of all auxiliaries. COP is highly dependent on operating conditions, especially absolute temperature and relative temperature between sink and system, and is often graphed or averaged against expected conditions.〔http://www.tetech.com/temodules/graphs/HP-199-1.4-0.8.pdf〕 == Equation == The equation is: :$COP\; =\; \backslash frac$ where * $Q\; \backslash$ is the heat supplied to or removed from the reservoir. * $W\; \backslash$ is the work consumed by the heat pump. The COP for heating and cooling are thus different, because the heat reservoir of interest is different. When one is interested in how well a machine cools, the COP is the ratio of the heat removed from the cold reservoir to input work. However, for heating, the COP is the ratio of the heat removed from the cold reservoir plus the input work to the input work: :$COP\_=\backslash frac=\backslash frac$ :$COP\_=\backslash frac$ where *$Q\_\; \backslash$ is the heat removed from the cold reservoir. *$Q\_\; \backslash$ is the heat supplied to the hot reservoir. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Coefficient of performance」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.