Thermodynamics Modeling and Optimization of Stirling Heat Pump: A Review

The aim of the study is to give a summary of the research that is conducted on the thermodynamic modeling methods for Stirling heat pumps. The various modeling thermodynamic techniques used for this heat pump are adapted from the Stirling engine model. The present study provides an extensive analysis of the Stirling heat pump performance using thermodynamic techniques such as isothermal, ideal adiabatic, simple adiabatic, combined adiabatic finite speed (CAFS), simple II adiabatic, polytropic with various loss (PSVL), polytropic finite speed thermodynamics (PFST), compressive polytropic model (CPMS), and nonideal second-order thermal model with additional loss effect. This study compared previous thermodynamic models of GPU3 Stirling engine. The review findings demonstrated that the new nonideal second-order model was preferable to the other thermodynamic modeling techniques due to some parameters.