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Lubricants for refrigeration and air conditioning. G.D. Short and T.E. Rajewski. Lubric. Engng., April 1995, 51(4), 270--275.

A basic refrigeration cycle involving liquefaction and evaporation stages is described and illustrated. Factors critical to the success of a lubricant in refrigeration applications are described as viscosity, miscibility, solubility, and chemical and thermal stability. Mineral oils, synthetic oils, and blended oils are reviewed. Results show that traditional naphthenic and paraffinic oils and alkyl benzene based lubricants are being replaced by synthetic fluids such as polyolesters, polyalkylene glycol, and polyalphaolefins. The properties of different refrigeration oils are compared in tabular form. Additives should only be used in refrigerator oils after a careful review of equipment design and quality control. Retro-fits for existing systems are discussed. 10 refs.

Abstract details

Journal title: Lubrication Engineering

Subjects: Physics, Process and resources engineering, Refrigeration and Air Conditioning Mechanics, Refrigeration, Heating, Ventilation and Air Conditioning, Quality assurance and control, Fuel quality and control, Transformation [Energy processing] (Conversion), Gas works (and other conversion to gases), Chemical and petrochemical, Additives and oxygenates, Lubricants, Oil, Other oil products, Drying / evaporation, Liquefaction