The exergy and energy level analysis of a combined cooling, heating and power system driven by a small scale gas turbine at off design condition

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	The exergy and energy level analysis of a combined cooling, heating and power system driven by a small scale gas turbine at off design condition
	Chen, Qiang 1,2; Han, Wei 1; Zheng, Jian-jiao 1; Sui, Jun 1; Jin, Hong-guang 1
刊名	APPLIED THERMAL ENGINEERING
	2014-05-01
卷号	66 期号:1-2 页码:590-602
关键词	CCHP system Off-design performance Energy level analysis Exergy Distributed energy system
英文摘要	This paper presents the off design performance analysis of a combined cooling, heating, and power (CCHP) system consisting of a small-scale gas turbine, an exhaust-fired double-effect absorption chiller, and a heat exchanger. The energy and exergy analyses of the CCHP system are investigated under the rated and part-load conditions. Energy level analysis is implemented on the energy conversion processes to reveal the mechanisms of the deterioration of the CCHP performance under part-load conditions. The results show that the CCHP system is energy saving when the power output of the gas turbine exceeds 30% of the full load. It is also found that the CO2 emission of the CCHP system reduced by 66.7%-70.5%, compared with conventional separation system, when the power output of gas turbine increased from about 30% to 100%. Energy level results reveal that the combustor of the small-scale gas turbine mainly contributed to the deteriorated performance of the CCHP system. In addition, a case study is carried out to illustrate the advantage of using dynamic data in the performance assessment. The case results indicate that using off-design data leads to a more realistic evaluation of the CCHP system. (C) 2014 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
关键词[WOS]	TRIGENERATION SYSTEM ; EVOLUTIONARY ALGORITHM ; PERFORMANCE ANALYSIS ; CCHP SYSTEM ; OPTIMIZATION ; COGENERATION ; TECHNOLOGIES ; GENERATION ; EMISSIONS ; OPERATION
收录类别	SCI
语种	英语
WOS记录号	WOS:000336352000061
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/105961]
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, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qiang,Han, Wei,Zheng, Jian-jiao,et al. The exergy and energy level analysis of a combined cooling, heating and power system driven by a small scale gas turbine at off design condition[J]. APPLIED THERMAL ENGINEERING,2014,66(1-2):590-602.
APA	Chen, Qiang,Han, Wei,Zheng, Jian-jiao,Sui, Jun,&Jin, Hong-guang.(2014).The exergy and energy level analysis of a combined cooling, heating and power system driven by a small scale gas turbine at off design condition.APPLIED THERMAL ENGINEERING,66(1-2),590-602.
MLA	Chen, Qiang,et al."The exergy and energy level analysis of a combined cooling, heating and power system driven by a small scale gas turbine at off design condition".APPLIED THERMAL ENGINEERING 66.1-2(2014):590-602.