Performance of a combined cooling heating and power system with mid-and-low temperature solar thermal energy and methanol decomposition integration

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	Performance of a combined cooling heating and power system with mid-and-low temperature solar thermal energy and methanol decomposition integration
	Xu, Da 1,2; Liu, Qibin 1; Lei, Jing 3; Jin, Hongguang 1
刊名	ENERGY CONVERSION AND MANAGEMENT
	2015-09-15
卷号	102 页码:17-25
关键词	Solar fuels Mid-and-low temperature solar thermal energy Solar thermochemical hybridization system Distributed energy system
英文摘要	In this paper, a new distributed energy system that integrates the mid-and-low temperature solar energy thermochemical process and the methanol decomposition is proposed. Through the solar energy receiver/reactor, the energy collected by a parabolic trough concentrator, at 200-300 degrees C, is used to drive the decomposition reaction of the methanol into the synthesis gas, and thus the solar thermal energy is converted to the chemical energy. The chemical energy of the synthesis gas released in the combustion chamber of a micro gas turbine is used to drive the combined cooling heating and power systems. Energy analysis and exergy analysis of the system are implemented to evaluate the feasibility of the proposed system. Under the considerations of the changes of the solar irradiation intensity, the off-design performances of the micro turbine and the variations of the load, the design and off-design thermodynamic performances of the system and the characteristics of the chemical energy storage are numerically studied. Numerical results indicate that the primary energy ratio of the system is 76.40%, and the net solar-electricity conversion rate reaches 22.56%, which is higher than exiting large-scale solar thermal power plants. Owing to the introduction of a the solar thermochemical energy storage in the proposed system, the power generation efficiency is insensitive to the variations of the solar radiation, and thus an efficient and stable utilization approach of the solar thermal energy is achieved at all work condition. (c) 2015 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]	HYDROGEN-PRODUCTION ; STEAM-GASIFICATION ; RECEIVER/REACTOR ; TECHNOLOGY ; COLLECTORS ; DESIGN ; CYCLES ; WATER
收录类别	SCI
语种	英语
WOS记录号	WOS:000358809400003
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/98926]
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, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Being 100049, Peoples R China 3.North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China
推荐引用方式 GB/T 7714	Xu, Da,Liu, Qibin,Lei, Jing,et al. Performance of a combined cooling heating and power system with mid-and-low temperature solar thermal energy and methanol decomposition integration[J]. ENERGY CONVERSION AND MANAGEMENT,2015,102:17-25.
APA	Xu, Da,Liu, Qibin,Lei, Jing,&Jin, Hongguang.(2015).Performance of a combined cooling heating and power system with mid-and-low temperature solar thermal energy and methanol decomposition integration.ENERGY CONVERSION AND MANAGEMENT,102,17-25.
MLA	Xu, Da,et al."Performance of a combined cooling heating and power system with mid-and-low temperature solar thermal energy and methanol decomposition integration".ENERGY CONVERSION AND MANAGEMENT 102(2015):17-25.