Design and theoretical aspects of heat pump systems

The design sequence of a heat pump is described. Various design aspects of a heat pump are discussed with reference to individual components of the system. Some of the common refrigerants have been theoretically analysed for their suitability as heat pump working fluids. Rankine coefficients of performance and compression ratios are chosen as the important parameters for this analysis. Working fluids with higher critical temperatures are further analysed for double stage heat pump systems and compared with their suitability in single stage systems.