Energy modeling for a hybrid power gas-engine-driven heat pump air conditioning system

Analysing the dynamic load characteristics of gas engine and batteries, establishes the energy-coupled mathematical model of the hybrid power gas-engine-driven heat pump (HPGHP) air conditioning system, and carries out related calculation. The results show that two factors—the probability distribution of compressor part load demand and the ratio of the power directly from the gas engine to the compressor to the total power output of the compressor—impact notably the thermal efficiency of the power system of HPGHP system, and that the thermal efficiency of the power system of HPGHP system is higher than that of the conventional GHP system in the condition that the power ratio is larger than a critical value.