摘要
介绍了CO2不同于常规冷媒的制冷循环方式,针对CO2空调运行过程中不同的循环方式,需要判断并使用不同的控制方法来使系统保持高效、稳定运行。
The paper introduces the refrigeration circulation mode of CO2 different from the conventional ones.According to the different circulation modes of CO2 air conditioner,it is necessary to judge and use different control methods to keep the system running efficiently and stably.
作者
程显耀
庞学博
CHENG Xianyao;PANG Xuebo(CRRC Dalian Locomotive Research Institute Co.,Ltd.,Dalian 116021,China)
出处
《铁道机车与动车》
2019年第9期20-22,7,共4页
Railway Locomotive and Motor Car
关键词
CO2冷媒空调
电子膨胀阀
跨临界循环
亚临界循环
控制方法
CO2 refrigerant air conditioner
electronic expansion valve
transcritical cycle
subcritical cycle
control methods
