Acknowledge the main factors which have influence on coefficient of performance of refrigeration cycle and the way to improve it.
了解分析影响各种制冷循环的制冷系数的主要因素及提高制冷系数的途径。
The coefficient of performance is taken as an objective function. The performance of the refrigeration system is optimized.
以制冷系数为目标函数，对制冷循环系统的性能进行优化分析。
The relation between the optimal coefficient of performance and the rate of refrigeration of a Carnot refrigerator for an idea or van der Waals gas as a working fluids(?)derived.
导出以理想气体或范德瓦耳斯气体为工质的制冷机最佳制冷系数与制冷率间的关系。
The results show that the thickness only has relation with the power price, the coefficient of the price of the refrigeration unit, etc.
结果表明，在微型冷库生命周期内最佳保温层厚度与微型冷库的库容无关，而只与电价、制冷机组的价格系数等因素有关。
Refrigerator oil having viscosity corresponded to the cross point of refrigerating capacity curve and refrigerating coefficient curve was the optimum product to obtain optimal refrigeration effect.
制冷量与制冷系数变化趋势的交叉点处为压缩机发挥最佳制冷性能的控制点；
Refrigerator oil having viscosity corresponded to the cross point of refrigerating capacity curve and refrigerating coefficient curve was the optimum product to obtain optimal refrigeration effect.
制冷量与制冷系数变化趋势的交叉点处为压缩机发挥最佳制冷性能的控制点；
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