本研究探讨了利用低品位废热的一种新的热电联产循环，同时产生加热和三效制冷。提出的热电联产循环结合了用于制冷的低品位热驱动蒸汽吸收和喷射系统和用于产生加热和制冷的高品位能量驱动级联系统。LiBr-H2O吸收系统用于喷射器，使用R141b进行冷却，级联系统使用CO2和N2O作为工作流体进行冷却和加热。采用第一定律和第二定律相结合的方法，通过热力学分析，研究了工业废热温度、制冷剂涡轮进口压力、喷射器蒸发器温度和级联循环压缩机压力比对废热驱动热电循环能量效率和火用效率的影响。在160°C（320°F）的废热温度下，最大热效率为32%，火用效率为10%。 在0.9MPa（130.5lb/in.2）至1.7MPa（246.56lb/in.2）的涡轮进口压力范围内，实现了9.75%至10.8%的火用效率和26.4%至58%的大范围能效。在[-1°C（-33.8°F）至-9°C（-48.2°F）]的喷射器温度范围内，能量和火用效率的变化范围分别为（28.17%至24%）和（10%至9.37%）。综合第二定律分析表明，87%的废热（火用）由于循环的各种不可逆过程而被破坏，约10%可用作加热和制冷输出，3%通过排气损失。引文:美国科学与技术研究院学报第119卷第2部分，科罗拉多州丹佛市。

This study investigates the utilization of low grade waste heat using a new cogeneration cycle for simultaneous production of heating and triple effect refrigeration. The proposed cogeneration cycle combines the low grade heat driven vapor absorption and ejector system for refrigeration and high grade energy driven cascaded system for producing heating and refrigeration. The LiBr-H2Oabsorption system is employed to ejector which uses R141b for cooling and the cascaded system which uses CO2 and N2O as a working fluid for cooling and heating. Combined first and second law approach is applied and a thermodynamic analysis is performed to investigate the effects of industrial waste heat temperature, refrigerant turbine inlet pressure, ejector evaporator temperature and compressor pressure ratio of cascaded cycle on energy and exergy efficiency of a waste heat driven cogeneration cycle. A maximum thermal efficiency of 32% and exergy efficiency of 10%are obtained at waste heat temperature of 160°C(320°F). Anarrowrange of 9.75% to 10.8% exergy efficiency and a wide range of 26.4% to 58% energy efficiency were achieved between the turbine inlet pressure of 0.9MPa (130.5lb/in.2) to 1.7 MPa (246.56lb/in.2). A close range of variation of both energy and exergy efficiency of (28.17% to 24%) and (10% to 9.37%) respectively were obtained between the ejector temperature ranges of [-1°C (-33.8°F) to -9°C (-48.2°F)]. Comprehensive second law analysis indicates that 87% of waste heat exergy is destroyed due to various irreversible processes of the cycle, around 10% is available as heating and refrigeration output, and 3% is lost via exhaust.