Advanced exergy and exergoeconomic analyses of a cascade absorption heat transformer for the recovery of low grade waste heat

Advanced exergy analysis of a Joule-Brayton pumped thermal electricity storage system with liquid-phase storage

“…Because the chemical-reaction, kinetic and potential exergies of fluids in the PTES system are negligible, only the physical exergy is considered. The total exergy of a stream can be expressed as [60]:…”

“…over 62%), dominantly in an unavoidable endogenous form; With increasing the turbine inlet temperature and compressor pressure ratio, the avoidable endogenous exergy destruction increased and multiplied by the factors of 1.3 and 8.6, respectively [59]. Wang et al [60] proposed a cascade absorption heat transformer to utilise industrial low-grade waste heat and used conventional and advanced 6 exergy analyses to determine the cause and avoidable degree of exergy destruction. Results revealed that only 21%…”

Experimental study and analysis on double effect absorption heat pump for efficient waste heat recovery

“…如前所述, 不同热泵技术所需要的驱动能源品位 是不一样的, 此外, 余热回收供热的工况也不一样, 如 果对这些技术进行对比, 就需要将输入能源和热输出 品位考虑进去 [26,27] . 本文选取了已发表的热泵高效回 收工业余热用于供热的实验数据, 结合本文实验数据, 并通过效率分析对比不同热泵技术.…”

Modified auxiliary exergy costing in advanced exergoeconomic analysis applied to a hybrid solar-biomass organic Rankine cycle plant

“…The analysis identified expander as the component with the highest potential for system improvement, an information that was reportedly suppressed when conventional exergoeconomic method was applied to the same system. Wang, Liu, Liu, Zhang, Cui, Yu et al [22] evaluated a cascade absorption heat transformer for recovery of waste heat, using both conventional and advanced exergoeconomic methods. They reported that results obtained from the two methods are not consistent, and based on the advanced method, about 20 % of destroyed exergy could be avoided, while about 80 % of the investment cost rates were found to be from the components themselves.…”