非共沸混合工质泄漏拓展模型的理论分析

New Theoretical Model on the Leakage of Refrigerant Mixtures in a Tank

非共沸混合工质泄漏拓展模型的理论分析顾惠军高志明马一太（天津大学热能系，天津３０００７２）ＮｅｗＴｈｅｏｒｅｔｉｃａｌＭｏｄｅｌｏｎｔｈｅＬｅａｋａｇｅｏｆＲｅｆｒｉｇｅｒａｎｔＭｉｘｔｕｒｅｓｉｎａＴａｎｋＡｂｓｔｒａｃｔＴｈｅｒｅａｓｏｎｗｈｙＲ...

The reason why Refrigerant Mixtures are not used widely as working fluids is due to the component shift caused by the leakage occurring in a practicable equipment. In the paper,a new theoretical model on the leakage of Refrigerant Mixtures in a Tank is presented. The new theoretical model analyzes the leakage process of nonazeotropic mixture more completely and carefully because it shows the effect of leakage rate on component shift, vapor quality and pressure. The simulation shows:(1):the effect of different leakage style on the component shift is different;(2):the component shift during the leakage process in is obviously different under different initial mass capacity, specially when the leakage rate is higher 0 8;(3):the pressure in the tank is obviously down during the vapor leakage, but it seems unchangeable during the liquid leakage except high leakage rate.