商用和工业制冷系统消耗的电能占美国电能的很大一部分。在本研究中，评估了先进的膨胀阀和控制算法，以量化由于改进系统调节和蒸汽压缩制冷系统的高效启动而带来的潜在节能。对采用不同控制策略的新型微机电系统（MEMS）执行器与标准机械阀和商用过热控制器的性能进行了比较。此外，本研究还包括一整套实验测试，以确定先进阀门控制策略的最有效元素，包括制冷剂迁移控制策略的影响。实验结果证实，使用改进的膨胀阀控制装置，可以将循环性能系数（COP）提高30%至50%，同时，如果制冷剂在压缩机关闭期间继续流经膨胀阀，防止制冷剂迁移的好处不会超过额外的冷却效果。 引用:2016年年度会议，密苏里州圣路易斯，2016年交易，第122卷。2.

Commercial and industrial refrigeration systems consume asignificant portion of U.S. electrical energy. In this research,advanced expansion valve and control algorithms are evaluatedto quantify the potential energy savings due to improved systemregulation and efficient start-up of vapor-compression refrigerationsystems. The performance of the new micro-electromechanicalsystem (MEMS) actuators with different controlstrategies is compared with that of the standard mechanicalvalves and a commercially available superheat controller. Additionally,this research includes a comprehensive set of experimentaltests that identify the most effective elements of advanced valvecontrol strategies, including the impact of refrigerant migrationcontrol strategies. The experimental results confirm that 30% to50% improvements in cyclic coefficient of performance (COP)are possible using improved expansion valve controls, while thebenefits of preventing refrigerant migration do not outweigh theadditional cooling achieved if refrigerant continues to flowthrough the expansion valve during the compressor OFF period.