Energy Level Matching And Economical Efficiency Analysis Of The Stand-Alone System Of Gas Engine-Driven Heat Pump

Gas Engine-driven Heat Pump (GEHP) is a high performance and energy saving heating and cooling equipment driven by the gas engine.It is not only economical and energy saving, but also of low pollution. So, it is a special kind of heating and air conditioner sets with brighter prospect. Theoretical and experimental study has been carried out to the GEHP and its stand-alone system in this paper.Firstly, the positive and negative combined cycle of GEHP was analyzed; and it was compared to electric heat pump. The advantage of GEHP in energy saving, energy configuration adjustment, lighten seasonal imbalance of electrical and gas load, environmental protection, and so on, was pointed out.Secondly, theoretical and experimental study was carried out to the waste heat utilization of GEHP. The production of the waste heat, the restrictive condition of waste heat utilization and the influence of waste heat utilization to the system performance was analyzed; advantage and disadvantage of several ways of waste heat utilization was compared.Thirdly, theoretical study was carried out to the stand-alone system of GEHP. The stand-alone system of GEHP was put forward on the base of common GEHP, and then, the PER and exergy efficiency of stand-alone GEHP was analylzed by the first and second law of thermodynamics.At last, the economy of GEHP was studied. On the base of thermal ecomomics, the thermal ecomomics mode of GEHP and several other ways to cooling and heating was founded. By the founded thermal economic mode, the economy of GEHP and other cooling and heating ways was compared, and the influence of the energy price, capacity increase fee, and so on, to the economy was also studied.