Abstract：
Combined cooling, heating and power (CCHP) is one of methods for enhancing the efficiency of the energy conversion systems. In this study a CCHP system consisting of a gas turbin (GT) as the topping cycle, and an organic Rankine cycle (ORC) associated with double-effect absorbtion chiller (DEACH) is decisioned as the bottoming cycle to recover the waste heat from GT exhaust gas. The considered CCHP system is investigated to maintain electricity, heating and cooling demand of a town. A parametric study is investigated and the effect decision variables on the performance indicators including exergy efficiency, total cost rate (TCR), cooling capacity, and ORC power generation is examined. Decision variables of the ORC system consist of HRVG pressure, and condenser pressure and the DEACH including evaporator pressure, condseser pressure, concentration of the concentrated solution, concentration of the weak solution, and solution mass flow rate. Finally a multi-objective optimization performed using Genetic Algorithm (GA) and the optimal design point is selected. It is observed at the optimum point the exergy efficiency, TCR, and sustainability index are 17.56%, 74.49 $/h, and 1.21, respectively.
摘要：
组合冷却,加热和供电(CCHP)是提高能量转换系统效率的方法之一。在这项研究中，CCHP系统由气体涡轮（GT）作为顶部循环组成，与双效吸收式制冷机（DEACH）相关的有机朗肯循环（ORC）被确定为底部循环，以从GT废气中回收废热。对所考虑的冷电联产系统进行了调查，以维持电力，一个城镇的供暖和制冷需求。进行了参数研究，并研究了决策变量对绩效指标的影响，包括火用效率，总成本率(TCR)，冷却能力,并检查ORC发电。ORC系统的决策变量包括HRVG压力，冷凝器压力和DEACH，包括蒸发器压力，condseser压力，浓缩溶液的浓度，浓度的弱溶液，和溶液质量流量。最后，使用遗传算法（GA）进行了多目标优化，并选择了最佳设计点。在最佳点观察到火用效率，TCR,可持续性指数为17.56%，74.49美元/小时,和1.21，分别。
