Numerical investigation of working fluid influence on stirling refrigeration machine performance.

This paper presents the main results of mathematical modeling operating cycle rotary-vane gas refrigerating machine that affect installation, machine control and working processes occurring in it at the specified criteria. A procedure and a graphical method for the rotary-vane gas refrigerating machine (RVGRM) are proposed. A parametric study of the main geometric variables and temperature variables on the thermal behavior of the system is analyzed. The model considers polytrope index for the compression and expansion in the chamber. Graphs of the pressure and temperature in the chamber of the angle of rotation of the output shaft are received. The simulation results show that the proposed model can be used to design and optimize Stirling refrigeration machine.