图5—14至5—16系介绍用以预定某一制冷系统的可选择的数据。这些数据将对设计工程师表明他所设计的系统是一种简单式的、还是复合式的、或是串联式的制冷系统。据此设计工程师还可以确定压缩机所需要马力的近似值,以及对于不同容量和不同蒸发温度下排热系统究竟是采用空冷式的、还是水冷式的冷凝器作出选择。简单式制冷系统只是用于为获得所需的制冷量时,其需要的离心式压缩机的数量为 Figures 5-14 through 5-16 show optional data to reserve a refrigeration system. The data will show the design engineer whether the system he designed was a simple, complex, or inline refrigeration system. This allows the design engineer to determine the approximate horsepower required by the compressor and to choose whether to use an air-cooled or water-cooled condenser for different capacities and evaporation temperatures. Simple refrigeration system is only used to obtain the required cooling capacity, the number of centrifugal compressors it needs