coefficient of performance

ratio of useful heating or cooling provided to work required

en-GB/ˌkəʊɪˈfɪʃənt əv pəˈfɔːməns/
en-US/ˌkoʊəˈfɪʃənt ʌv pɚˈfɑɹməns/

カテゴリ：

measureenergy efficiencyratiofigure of merit