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模拟了在不同工况下以R124/DMAC为工质的汽车尾气废热制冷循环特性,分析了冷凝温度、放气范围、发动机输出功率等因素变化对制冷循环特性的影响,结果表明在空调大客车中仅采用汽车尾气废热制冷不能满足空调的冷负荷需求,为此提出了汽车废热与动力共同驱动的吸收/压缩混合制冷循环,来满足汽车在任何行驶状态下的制冷负荷需求。
The characteristics of refrigeration cycle of vehicle tail gas with R124 / DMAC as working fluid under different operating conditions were simulated. The influence of the factors such as condensing temperature, deflation range and engine output power on the refrigeration cycle characteristics was analyzed. In this paper, only the exhaust heat from automobile exhaust air-conditioning refrigeration can not meet the needs of the air-conditioning cooling load. Therefore, an absorption / compression hybrid refrigeration cycle jointly driven by vehicle exhaust heat and power is proposed to meet the cooling load requirement of the vehicle under any driving condition.