... polyurethane foam, cleaning agents, refrigerants.The advantages of application of foaming agent: Electron micrograph shows the blowed Polyurethane ... as refrigerant: Comparing with some current application scenario of HCFC, such as HCFC-123 or HCFC141b, our ... conduction application in centrifugal chiller), Energy conversion, two levels of refrigeration system, some phase conversion and sensible heat ...