問題詳情

44.由圖 4 所示，下列有關冷凍性能係數何者正確？


(A)性能係數 =(h 2 -h 1 )/(h 1 -h 4 )
(B)性能係數 =(h 1 -h 4 )/(h 1 -h 2 )
(C)性能係數 =(h 4 -h 1 )/(h 2 -h 1 )
(D)性能係數 =(h 1 -h 4 )/(h 2 -h 1 )

參考答案