DefinePK

Abstract

Many studies have been performed to increase the efficiency of the refrigerant compressor. In this study, we tried to improve the cooling power and efficiency by preventing the rise of refrigerant temperature through the thermal management of the compressor. In particular, the thermal efficiency was improved by heat transfer enhancement using the waste spring vibration. To this end, a CFD model considering valve behavior was developed to analyze the whole cycle including suction and compression processes. A thermal management analysis of the compressor was performed through this model. The results show that using the waste vibration of the dynamic part, the heat transfer of the internal heat of the compressor to the outside air was improved by up to 4% resulting in increasing cooling power and EER up to 0.5% and 0.5% respectively.