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A novel combined power and cooling cycle design and a modified conditional exergy destruction approach

机译：一种新颖的组合电力和冷却循环设计和改进的条件漏洞破坏方法

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摘要

This paper introduces a new combined power and cooling cycle (CPCC) formed by the integration of a modified Kalina and Goswami cycles sharing a common absorber that in turn demands for internal rectification in the former cycle. Unlike most of the conventional studies which are aimed at minimizing the overall exergy destruction of the cycle ((E)over dot(Dx,OC)), this work clarifies that such a practice does not ensure the optimized attainment of total turbine work output (W-TR), cooling output (C)over dot(cooling)) and exergy efficiency (eta(exergy)) of the cycle. Therefore, this conditional nature of (E)over dot(Dx,OC) is addressed here through the optimization of an integrated objective function addressing each of the desired performance parameters using a dual-mode dragonfly algorithm. The optimization is performed for a range of strong solution concentration, boiler temperature and pressure, in which only the first two parameters are independently varying, while the third is dependent on the previous parameters to ensure partial vaporization. The temperature of the strong solution is kept below its bubble temperature while recov-ering heat from the hot liquid condensate so that there is no vaporization before entering the boiler. When the present optimization approach is performed for a given set of operational parameters, the values of W-TR, (C)over dot(cooling) and eta(exergy) are observed to improve by 1.84, 6.74, and 1.33 times, respectively with 1.35 times compromise in (E)over dot(Dx,OC), with respect to the conventional practice. The temperature of the strong solution is kept below its T-bubble while recovering heat from the liquid condensate by performing pinch point calculations.
机译：本文介绍了通过分享普通吸收器的改进的Kalina和Goswami循环的整合而形成的新的组合电力和冷却循环（CPCC），该循环反过来是前周期内的内部整流的需求。与大多数常规研究不同，该研究旨在最大限度地减少循环的整体漏洞破坏（（e）通过点（o）（dx，oc）），这项工作阐明了这种做法并不能确保优化的总涡轮机工作输出的优化达到（ W-TR），通过点（冷却）的冷却输出（C））和循环的电流效率（ETA（DeTergy））。因此，这里通过优化使用双模蜻蜓算法解决每个期望的性能参数的集成目标函数来解决（e）上的这种条件性质。针对一系列强溶液浓度，锅炉温度和压力进行优化，其中仅前两个参数独立变化，而第三则取决于先前的参数以确保部分蒸发。强溶液的温度保持在其气泡温度下方，同时从热液体冷凝物中恢复热量，使得在进入锅炉之前没有蒸发。当对给定的操作参数进行本发明的优化方法时，观察到分别为1.84,6.74和1.33倍改善点（冷却）和eta（冷却）和eta（冷却）和eta（deacty）的值。 1.35次（e）在点（e）上（dx，oc）相对于传统实践折衷。通过进行夹点计算，在其T-泡沫中恢复热量的温度下方，将强溶液的温度保持在其T-泡沫中。

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