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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Exergy, economic and environmental impact assessment and optimization of a novel cogeneration system including a gas turbine, a supercritical CO2 and an organic Rankine cycle (GT-HRSG/SCO2)
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Exergy, economic and environmental impact assessment and optimization of a novel cogeneration system including a gas turbine, a supercritical CO2 and an organic Rankine cycle (GT-HRSG/SCO2)

机译:火用,经济和环境影响评估以及包括燃气轮机,超临界二氧化碳和有机朗肯循环(GT-HRSG / SCO2)在内的新型热电联产系统的优化

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摘要

Exergoeconomic and exergoenvironmental analyses are reported for a novel cogeneration system including a gas turbine, a heat recovery steam generator, a supercritical carbon dioxide recompression Brayton cycle and an organic Rankine cycle. A comprehensive parametric study is carried out to clarify the effects of some decision parameters on the exergoeconomic performance of the proposed system. Also, the payback period is determined for the proposed system. The sum of capital investment cost, total exergy destruction cost and environmental impact cost is considered as an objective function which is optimized with respect to the decision parameters. The variation in overall exergoeconomic factor is determined and its implication to the system design is discussed. It is observed that under the optimized condition the average product unit cost of the system (cost of produced power and steam) is decreased by 0.56 VGJ when compared to the value obtained under a base condition. (C) 2016 Elsevier Ltd. All rights reserved.
机译:据报道,对一种新型的热电联产系统进行了能效经济和能效环境分析,该系统包括燃气轮机,热回收蒸汽发生器,超临界二氧化碳再压缩布雷顿循环和有机朗肯循环。进行了全面的参数研究,以阐明某些决策参数对拟议系统的经济经济绩效的影响。同样,为建议的系统确定投资回收期。资本投资成本,总火用破坏成本和环境影响成本之和被认为是针对决策参数进行了优化的目标函数。确定了总体能效经济因素的变化,并讨论了其对系统设计的影响。可以看出,在最佳条件下,与基本条件下获得的值相比,系统的平均产品单位成本(产生的动力和蒸汽的成本)降低了0.56 VGJ。 (C)2016 Elsevier Ltd.保留所有权利。

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