This chapter studies the properties of substances used as working fluids in compression cycles, and discusses the classification of refrigerants.
Some of the most common refrigerants are presented, as well as the special phenomena occurring with the use of zeotropic refrigerant mixtures. Finally, the use of secondary refrigerants and oil in refrigerant are discussed.
5.1 Refrigerant criteria
5.2 Designation of refrigerants
5.3 Environmental impacts of refrigerants
5.4 Refrigerant types
5.5 Health and safety classification
5.6 Oil and refigerants
5.7 Azeotropic/Zeotropic refrigerants
5.8 Secondary refrigerants