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)
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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DOI：
10.1016/j.applthermaleng.2016.08.197
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发表时间：
2017-01
影响因子：
6.4
通讯作者：
H. Nami;S. Mahmoudi;A. Nemati
中科院分区：
文献类型：
--
作者：
H. Nami;S. Mahmoudi;A. Nemati
对一种新型热电联产系统进行了经济性和环境性分析，该系统包括燃气涡轮机、余热锅炉、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，以澄清一些决策参数的影响，所提出的系统的火用经济性能。此外，投资回收期确定为拟议的系统。将投资成本、总（火用）破坏成本和环境影响成本之和作为目标函数，对决策参数进行优化。的变化，在整体经济因素的确定和其含义的系统设计进行了讨论。据观察，在优化的条件下，系统的平均产品单位成本（所产生的电力和蒸汽的成本）降低了0.56 $/GJ相比，在基础条件下获得的值。
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 $/GJ when compared to the value obtained under a base condition.