Analysis of thermal cycles and working fluids for power generation in space

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	Analysis of thermal cycles and working fluids for power generation in space
	Tarlecki, Jason ; Lior, Noam ; Zhang, Na
刊名	ENERGY CONVERSION AND MANAGEMENT
	2007-11-01
卷号	48 期号:11 页码:2864-2878
关键词	power cycles space power space Brayton cycle Ericsson cycle Rankine cycle
英文摘要	Production of power in space for terrestrial use is of great interest in view of the rapidly rising power demand and its environmental impacts. Space also offers a very low temperature, making it a perfect heat sink for power plants, thus offering much higher efficiencies. This paper focuses on the evaluation and analysis of thermal Brayton, Ericsson and Rankine power cycles operating at space conditions on several appropriate working fluids. Under the examined conditions, the thermal efficiency of Brayton cycles reaches 63%, Ericsson 74%, and Rankine 85%. These efficiencies are significantly higher than those for the computed or real terrestrial cycles: by up to 45% for the Brayton, and 17% for the Ericsson; remarkably 44% for the Rankine cycle even when compared with the best terrestrial combined cycles. From the considered working fluids, the diatomic gases (N-2 and H-2) produce somewhat better efficiencies than the monatomic ones in the Brayton and Rankine cycles. The Rankine cycles require radiator areas that are larger by up to two orders of magnitude than those required for the Brayton and Ericsson cycles. The results of the analysis of the sensitivity of the cycle performance parameters to major parameters such as turbine inlet temperature and pressure ratio are presented, equations or examining the effects of fluid properties on the radiator area and pressure drop were developed, and the effects of the working fluid properties on cycle efficiency and on the power production per unit radiator area were explored to allow decisions on the optimal choice of working fluids. (C) 2007 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]	SOLAR POWER ; ENERGY ; SYSTEM ; OPTIMIZATION ; SATELLITES ; OPTION ; EARTH
收录类别	ISTP ; SCI
语种	英语
WOS记录号	WOS:000250910500015
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106276]
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.Univ Penn, Dept Mech Engn & Appl Mech, Philadelphia, PA 19104 USA 2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Tarlecki, Jason,Lior, Noam,Zhang, Na. Analysis of thermal cycles and working fluids for power generation in space[J]. ENERGY CONVERSION AND MANAGEMENT,2007,48(11):2864-2878.
APA	Tarlecki, Jason,Lior, Noam,&Zhang, Na.(2007).Analysis of thermal cycles and working fluids for power generation in space.ENERGY CONVERSION AND MANAGEMENT,48(11),2864-2878.
MLA	Tarlecki, Jason,et al."Analysis of thermal cycles and working fluids for power generation in space".ENERGY CONVERSION AND MANAGEMENT 48.11(2007):2864-2878.