Vol. 7, Special Issue 2 (2025)

Gas-injected scroll compressors have recently attracted attention in vapor compression systems, especially in high temperature lift applications, due to the advantages they offer. Modeling the steady state of a gas-injected scroll compressor is of considerable importance in considering the behavior of the compressor’s characteristic parameters. Semi-empirical models are proposed primarily for standard scroll compressors to accurately calculate compressor performance without knowledge of the compression process or geometry. Verification of the model accuracy based on experimental data of previous studies has been carried out.