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Title: Performance analysis of a partial oxidation steam injected gas turbine cycle
Author: Zhang, Shi-jie1, 2; Chi, Jin-ling1, 2; Xiao, Yun-han1, 2
Source: APPLIED THERMAL ENGINEERING
Issued Date: 2015-12-05
Volume: 91, Pages:622-629
Keyword: Partial oxidation steam injected gas turbine cycle ; Steam injected gas turbine cycle ; Performance analysis ; Exergy analysis
DOI: 10.1016/j.applthermaleng.2015.08.062
DOC Type: Article
English Abstract: Partial oxidation gas turbine (POGT) has great potential in improving efficiency because of staged releasing of the chemical energy of fuel. Several researchers have studied the applications of POGT in repowering of different existing power plants. In this study, the POGT is integrated with a steam injected gas turbine (STIG) cycle. This research evaluated the overall thermodynamic performance of a partial oxidation steam injected gas turbine (POSTIG) cycle and investigated the influences of key variables. In addition, comparisons with the STIG cycle were conducted based on exergy analysis. Results show that the combustor outlet temperature of the bottoming gas turbine cycle, the pressure ratio of the bottoming gas turbine cycle compressor, and the temperature of partial oxidation affected the efficiency and specific work output of the POSTIG cycle obviously. Compared with the simple gas turbine cycle, the oxygen concentration in the combustor outlet gas of the POSTIG cycle decreases significantly, and the cooling flow rate increases. Efficiency of the POSTIG cycle is at least two percentage points higher than that of the STIG cycle because of the production and utilization of higher quality steam, along with lower exergy destruction during the graded release of the fuel's chemical energy. (C) 2015 Elsevier Ltd. All rights reserved.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
WOS Subject Extended: Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
WOS Keyword Plus: MULTIOBJECTIVE OPTIMIZATION ; POWER-PLANT ; SYSTEM ; GENERATION
Indexed Type: SCI
Funder: National Key Basic Research Program of China(2014CB247500) ; Lianyungang Science and Technology Bureau(CXY1325)
Language: 英语
WOS ID: WOS:000365053200062
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112305
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Res Ctr Clean Energy & Power, Lianyungang 222069, Jiangsu, Peoples R China
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