Performance of humid air turbine with exhaust gas expanded to below ambient pressure based on microturbine

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	Performance of humid air turbine with exhaust gas expanded to below ambient pressure based on microturbine
	Wan, Kuifang 1,2; Zhang, Shijie 1; Wang, Jing 1,2; Xiao, Yunhan 1
刊名	ENERGY CONVERSION AND MANAGEMENT
	2010-11-01
卷号	51 期号:11 页码:2127-2133
关键词	Humid air turbine Inverted Brayton cycle Microturbine Performance Optimization
英文摘要	A new type of HAT cycle comprising HAT and Inverted Brayton cycles, named BAHAT in this paper, is proposed to enhance the microturbine's performance. By adding an exhaust compressor after flue gas condenser, the gas expander expands to a pressure lower than ambient. Simulation and parameter optimization results show that the electricity efficiency and specific work of BAHAT are about 2 percentage points and 20% higher than that of HAT cycle respectively when turbine inlet temperature is 950 C. The working pressure of aftercooler, humidifier and turbine hot section is only about 0.4 MPa though the optimal total pressure ratio is about 9-10. The drops of compression work and outlet water temperature of humidifier are considered the main factors to enhance BAHAT's efficiency. In addition, the exhaust compressor inlet gas temperature affects BAHAT's efficiency and water recovery ratio apparently. It is also shown that it is easy to achieve water self-support for BAHAT, mixing makeup water to the water loop before entering economizer shows the best thermodynamic performance, and air leakage to the bottom cycle influences both efficiency and water recovery ratio of BAHAT. (C) 2010 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Energy & Fuels ; Mechanics ; Physics, Nuclear
研究领域[WOS]	Thermodynamics ; Energy & Fuels ; Mechanics ; Physics
关键词[WOS]	INVERSE BRAYTON CYCLES ; POWER-GENERATION ; EFFICIENCY
收录类别	SCI
语种	英语
WOS记录号	WOS:000280117600006
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106441]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wan, Kuifang,Zhang, Shijie,Wang, Jing,et al. Performance of humid air turbine with exhaust gas expanded to below ambient pressure based on microturbine[J]. ENERGY CONVERSION AND MANAGEMENT,2010,51(11):2127-2133.
APA	Wan, Kuifang,Zhang, Shijie,Wang, Jing,&Xiao, Yunhan.(2010).Performance of humid air turbine with exhaust gas expanded to below ambient pressure based on microturbine.ENERGY CONVERSION AND MANAGEMENT,51(11),2127-2133.
MLA	Wan, Kuifang,et al."Performance of humid air turbine with exhaust gas expanded to below ambient pressure based on microturbine".ENERGY CONVERSION AND MANAGEMENT 51.11(2010):2127-2133.