Refrigeration Cycle Engineering Calculation Excel Template

The template implements the fundamental vapor-compression refrigeration cycle—comprising compression, condensation, expansion, and evaporation—and leverages thermodynamic property databases (often embedded via interpolation or external add-ins like CoolProp or REFPROP) to compute state-point properties for common refrigerants (e.g., R-134a, R-410A, R-290). Users input key operational parameters—including evaporator and condenser temperatures/pressures, isentropic compressor efficiency, and mass flow rate—and the template automatically calculates critical outputs such as coefficient of performance (COP), refrigeration effect, compressor work, heat rejection, and cycle efficiency. Advanced versions incorporate subcooling, superheating, liquid line restrictions, and two-phase flow corrections to improve real-world fidelity. The Excel environment enables iterative 'what-if' analysis, graphical plotting (e.g., P-h or T-s diagrams), and integration with engineering standards (e.g., ASHRAE Handbook, ISO 5149). It serves both practitioners performing preliminary system sizing and educators demonstrating thermodynamic principles through interactive, numerical experimentation.