Effects of thermophysical and thermochemical recuperation on the performance of combined gas turbine and organic rankine cycle power generation system: Thermoeconomic comparison and multi-objective optimization

被引：33

作者：

Sadeghi, Mohsen ^{[1
]}

Chitsaz, Ata ^{[2
]}

Marivani, Parisa ^{[1
]}

Yari, Mortaza ^{[1
]}

Mahmoudi, S. M. S. ^{[1
]}

机构：

[1] Univ Tabriz, Dept Mech Engn, Tabriz, Iran

[2] Urmia Univ, Dept Mech Engn, Orumiyeh, Iran

来源：

ENERGY | 2020年 / 210卷

关键词：

Gas turbine; Organic rankine cycle; Thermophysical recuperation; Thermochemical recuperation; Thermoeconmics; EJECTOR REFRIGERATION CYCLE; CARBONATE FUEL-CELL; THERMODYNAMIC ANALYSIS; COGENERATION SYSTEM; EXERGOECONOMIC ANALYSIS; STEAM INJECTION; HEAT; EXERGY; ENERGY; PLANT;

D O I：

10.1016/j.energy.2020.118551

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, effects on the performance of a combined gas turbine and organic Rankine cycle (GT/ORC) system of using thermophysical and thermochemical recuperation based on methane steam reforming (MSR) process is investigated from the viewpoint of thermoeconomics. For this purpose, three power generation systems consisting of simple GT/ORC, GT/ORC with thermophysical recuperators (TPR) and GT/ORC with thermophysical and thermochemical recuperators (TPCR) are proposed and compared thermodynamically and economically. In addition, the multi-objective optimization using genetic algo-rithm is conducted for the systems and the systems characteristics at the final optimum design points are compared. Results: reveals that the thermodynamic, economic and environmental performance of all three pro-posed power generation systems are enhanced as the combustion temperature raises. In addition, the power generation system with TPR shows the best performance from the thermodynamic perspective with the 22.86% and 27.52% improvement in the exergy efficiency compared to the simple GT/ORC and GT/ORC with TPCR, respectively. However, under the operating thermodynamic conations obtained by the multi-objective optimization approach, the product cost associated with the system using TPCR is less than that of the other configurations. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：22

共 55 条

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