DefinePK

Abstract

Applying vapor injection to refrigeration compressors may improve the heating capacity and COP. However, a small scroll compressor may not be commercialized due to the increase of the internal leakage and the production costs. In this study, a compact scroll compressor was considered to apply vapor injection for the improvement of the cycle efficiency. To this end, the performance of the compressor was numerically analyzed with vapor injection. The results show that vapor injection is still applicable to relatively small refrigerant compressors resulting in increased cooling capacity and COP.