In most cases the refrigerant flow is being obstructed as moisture turns to ice at the expansion valve.
最经常的情况是，在膨胀阀处水分变成冰儿阻碍了制冷剂的流动。
By applying black box theory inlet pressure, inlet subcooling, outlet pressure and valve opening are selected as influence factors to flow coefficient of electronic expansion valve (EEV).
根据黑箱理论提出将阀前压力、阀前过冷度、阀后压力和膨胀阀流通面积作为膨胀阀流量系数的影响参数。
The model includes sub models for key components, such as non economized compressor, economized compressor, economizer, expansion valve, shell and tube condenser, and flooded evaporator.
模型由一系列部件模型组成，包括压缩机、经济器、膨胀阀、壳管式冷凝器以及满液式蒸发器。
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