This study thermodynamically evaluates a newly modified absorption power cycle (APC) working with Lithium Bromide–Water (LiBr‐H₂O) solution and compares it with the conventional Rankine, one‐stage, and three‐stage APC systems. An additional steam condenser is integrated to the conventional APC and part of pure water is extracted and pumped back to the high‐pressure side without passing through the absorber of the cycle. In order to specify the best system parameters, parametric optimization of all configurations is evaluated. The Rankine cycle and the modified APC have better thermodynamic performances than those of the conventional and the three‐stage APC at generator temperatures. The conventional APC is found to improve the cycle performance at low generator pressure. However, the efficiencies of this cycle start to decrease when generator pressure increases. In contrast, the Rankine cycle and the modified APC have larger working ranges of generator pressure.

中文翻译：

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使用LiBr-水运行的新修改的吸收功率循环的热力学可行性分析

这项研究从热力学上评估了一种新改良的吸收功率循环（APC），该吸收功率循环与溴化锂-水（LiBr-H ₂O）解决方案，并将其与常规的Rankine，一级和三级APC系统进行比较。常规APC上集成了一个附加的蒸汽冷凝器，部分纯水被抽出并泵回高压侧，而不经过循环的吸收器。为了指定最佳的系统参数，将评估所有配置的参数优化。在发电机温度下，朗肯循环和改进的APC具有比常规和三级APC更好的热力学性能。已发现传统的APC可改善低发电机压力下的循环性能。但是，当发电机压力增加时，该循环的效率开始降低。相反，兰金循环和改进的APC具有更大的发电机压力工作范围。