Modeling Temperatures in High Speed Compressors for the Purpose of Gas Pulsation and Valve Loss Modelling

The effects of compressor speed variation on the heat transfer inside a speed controlled compressor were investigated in this study. Based on the lumped capacitance ntethod, the temperatures of the compressor components, the oil, and the refrigerant gas within the shell were modeled and simulated on a relative scale. A diffenmt heat transfer coefficient correlation was developed to evaluate the convcctive heat transfer rate between the compressor cylinder wall arid the gas inside it. The refrigerant gas mass loss at different compressor speeds and how the compressor speed affects the suction gas heating were discussed