摘要
电动汽车空调系统缩短了汽车的续航里程,为混合动力电动汽车设计一套吸收-压缩混合制冷空调系统,该系统由动力系统、吸收制冷子循环和压缩制冷子循环组成,利用微型燃气轮机排气余热驱动吸收制冷子系统,减少了电池电力驱动压缩机制冷的用电量,通过热力循环计算讨论系统的可行性,结果表明,对于30 kW空调冷负荷的公交车,用35 kW微型燃气轮机的排气废热驱动吸收式制冷子循环,大约能承担15 kW的空调冷负荷,剩余部分需用压缩制冷子循环补偿,大约需消耗6.71 kW的压缩机功率,采用吸收-压缩联合制冷和纯电动压缩制冷相比,能效提升了约37.1%。
The air-conditioning system of electric vehicles shortens the driving mileage of the car.Therefore,a set of absorption-compression hybrid refrigeration system for hybrid electric vehicle are designed.The system consists of power system,absorption refrigeration cycle and compression refrigeration cycle.By using the waste heat of micro gas turbine to drive the absorption refrigeration subsystem,the power consumption of the compressor driven by battery power is reduced,as well.The feasibility of the system is discussed through the thermodynamic cycle calculation.The results show that,a bus air-conditioning with cooling load of 30 kW,the waste heat emitted by a micro gas turbine with a power of 35 kW drives an absorption refrigeration cycle,which can provide about 15 kW of cooling capacity,and the remaining part needs to be compensated by the compression refrigeration cycle,which consumes about 6.71 kW of compressor power.At the same time,compared with the absorption-compression combined refrigeration and electric compression refrigeration,the energy efficiency is improved by about 37.1%.
出处
《洁净与空调技术》
2020年第4期49-53,共5页
Contamination Control & Air-Conditioning Technology
关键词
吸收
压缩
制冷
微型燃气轮发电机
Absorption
Compression
Refrigeration
Micro-turbine generator
