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首页> 外文期刊>Geothermics >Enhancing the performance of an integrated CCHP system including ORC, Kalina, and refrigeration cycles through employing TEG: 3E analysis and multi-criteria optimization
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Enhancing the performance of an integrated CCHP system including ORC, Kalina, and refrigeration cycles through employing TEG: 3E analysis and multi-criteria optimization

机译：通过采用TEG：3E分析和多标准优化，增强包括ORC，Kalina和制冷循环的集成CCHP系统的性能：3E分析和多标准优化

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摘要

In the current work thermodynamic modeling, exergo-economic and multi-objective optimization of an integrated geothermal based CCHP system coupled with thermoelectric generator is examined. A numerical simulation in the Engineering Equation Solver (EES) is developed to simulate the behavior of the CCHP/TEG integrated system. Exergo-economic modeling to find the cost formation of different streams is done and parametric study with considering different thermodynamic and economic criteria is performed. Thermodynamic analysis reveal that the net output power and total useful products are 139.7 kW and 807 kW. Moreover, the energy and exergy efficiency of the considered system is 55.81 % and 22.63 %, respectively. Parametric study on the CCHP/TEG system for net output power, exergy efficiency, electrical cost rate, and total useful products is carried out. Regarding parametric study the multi-objective optimization with exergy efficiency and electrical cost rate is done. The concept of ideal point is employed to determine the final optimum conditions of CCHP/TEG system. The optimization calculations show that in the final optimum values of the electrical cost rate and exergy efficiency of the system are 12.52 $/h and 22.11 %, respectively. In addition the optimization process indicates that the optimum turbine inlet pressure and separation I inlet temperature are around 8 bars and 13 bars.
机译：在目前的工作中，检查了与热电发电机结合的集成地热基于CCHP系统的Exergo-经济和多目标优化。开发了工程方程解算器（EES）中的数值模拟以模拟CCHP / TEG集成系统的行为。 exergo-经济建模，以找到不同流的成本形成，并且考虑到不同的热力学和经济标准进行参数学研究。热力学分析表明，净输出功率和总有用产品为139.7千瓦和807千瓦。此外，所考虑的系统的能量和漏极效率分别为55.81％和22.63％。对净输出功率的CCHP / TEG系统进行参数研究，进行了高效率，电力成本率和总有用产品。关于参数研究，采用效率和电力成本率进行多目标优化。使用理想点的概念来确定CCHP / TEG系统的最终最佳条件。优化计算表明，在最终最佳值的最佳值中，系统的电力成本率和高度效率分别为12.52美元/小时和22.11％。此外，优化过程表明最佳涡轮机入口压力和分离I入口温度约为8巴和13巴。

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