论文部分内容阅读
四十四:制冷系统的蒸发温度与冷凝温度如何合理选定?制冷剂在蒸发器内沸腾汽化时的温度称为蒸发温度 t_0,与蒸发温度 t_0相对应的饱和压力称为蒸发压力 P_0。在实际运行中,通带是根据被冷却物体或载冷剂的温度要求来选定合理的蒸发温度值。例如对于冷藏系统,合理的 t_0值一般比库房温度低5～10℃,而对于生产冷水或冷冻盐水等载冷剂的系统,t_0值一般选定比
Forty-four: Refrigeration system, the evaporation temperature and condensation temperature how to choose? The boiling temperature of the refrigerant in the evaporator vaporization temperature is called the evaporation temperature t_0, and the evaporation temperature t_0 corresponds to the saturation pressure is called the evaporation pressure P_0. In actual operation, the passband is based on the temperature of the object being cooled or the temperature of the refrigerant to select a reasonable evaporation temperature value. For example, for a refrigerating system, a reasonable value of t_0 is generally 5 to 10 ° C lower than the temperature of the storeroom, whereas for a system that produces a refrigerant such as cold water or frozen brine, the value of t_0 is generally selected