Role of the Thermodynamics, Heat Transfer, and Fluid Mechanics of Lubricant Oil in Hermetic Reciprocating Compressors

摘要: This paper reviews recent developments regarding the influence of oil on several thermophysical phenomena in reciprocating compressors. Besides more essential role lubrication, is responsible for tasks compressor, from cooling to keeping a low system pressure while compressor idle. Thermodynamics dictates number phases equilibrium and amount dissolved refrigerant can retain liquid phase under particular condition. Hence, when full miscibility exists, viscosity lubricant mixture directly affected by solubility oil. Heat transfer crucial temperature because thermodynamic losses increase with increasing gas temperature. Fluid mechanics guarantee that delivered bearings lubrication performed efficiently any operating