畢業(yè)設(shè)計外文翻譯----冷卻系統(tǒng)利用流體吸熱交換器-展示頁
2025-05-26 23:20本頁面
【正文】 er time, vaporize the liquid carryover by absorbing heat during the process of subcooling highside liquid. Background Stoecker and Walukas (1981) focused on the influence of liquidsuction heat exchangers in both single temperature evaporator and dual temperature evaporator systems utilizing refrigerant mixtures. Their analysis indicated that liquidsuction heat exchangers yielded greater performance improvements When nonazeotropic mixtures Were used pared With systems utilizing single ponent refrigerants or azeoptropic mixtures. McLinden (1990) used the principle of corresponding states to evaluate the anticipated effects of neW refrigerants. He shoWed that the performance of a system using a liquidsuction heat exchanger increases as the ideal gas specific heat (related to the molecular plexity of the refrigerant) increases. Domanski and Didion (1993) evaluated the performance of nine alternatives to R22 including the impact of liquidsuction heat exchangers. Domanski et al. (1994) later extended the analysis by evaluating the influence of liquidsuction heat exchangers installed in vapor pression refrigeration systems considering 29 different refrigerants in a theoretical analysis. Bivens et al. (1994) evaluated a proposed mixture to substitute for R22 in air conditioners and heat pumps. Their analysis indicated a 67% 3 improvement for the alternative refrigerant system When system modifications included a liquidsuction heat exchanger and counterfloW system heat exchangers (evaporator and condenser). Bittle et al. (1995a) conducted an experimental evaluation of a liquidsuction heat exchanger applied in a domestic refrigerator using R152a. The authors pared the system performance With that of a traditional R12based system. Bittle et al. (1995b) also pared the ASHRAE method for predicting capillary tube performance (including the effects of liquidsuction heat exchangers) With experimental data. Predicted capillary tube mass floW of actual measurements. This paper analyzes the liquidsuction heat exchanger to quantify its impact on system capacity and performa
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