An optimizing method with constant pressure ratio is initially applied to the mixed refrigerant cycle . this method greatly simplifies the calculation of the cycle , and is helpful in numerical optimization of various cycles , especially in the complex cycles 本文首次采用混合工質(zhì)制冷機(jī)循環(huán)的定運(yùn)行壓比優(yōu)化方法,大大減少了循環(huán)的計(jì)算量,為各種混合工質(zhì)制冷機(jī)循環(huán),尤其是復(fù)雜循環(huán)的數(shù)值優(yōu)化奠定了基礎(chǔ)。