很大一部分空调和制冷系统依靠压缩机循环策略来满足冷却负荷。本文研究了膨胀阀和热交换器风扇控制策略对系统效率的影响，假设压缩机处于开关循环。循环/关闭模式是了解循环/关闭模式对系统效率的第一步。由于阀门策略和关闭时的风扇延迟，制冷剂迁移被确定为影响系统循环效率的关键问题。然后利用优化方法研究最优循环策略。在模拟研究之后，对一台3吨家用空调进行了广泛的实验测试，证实了模拟研究的主要结论，即压缩机停机期间的阀门和风扇控制策略可能会导致循环COP的微小变化。 引用:阿什雷翻译。第118卷，第。德克萨斯州圣安东尼奥2号

A large percentage of air conditioning and refrigerationsystems rely on compressor cycling strategies to meet coolingloads. This paper examines the impact of expansion valve andheat exchanger fan control strategies on system efficiency,assuming an on-off cycle of the compressor. The first step is thedevelopment of a start-up/shut-down dynamic simulationmodel that is used as a tool to understand the effect that valve/fan cycling has on the system's cyclic efficiency. Refrigerantmigration due to valve strategies and fan delay at shutdown aredetermined as crucial issues that have an effect on system'scyclic efficiency. Optimization approaches are then used tosearch for the optimal cycle strategies. The simulation studiesare followed by extensive experimental tests conducted on a 3-ton residential air conditioner, confirming the major conclusionsof the simulation study, namely that the valve and fancontrol strategies during compressor shutdown can result insignificant variations in cyclic COP.