Multi-objective optimization and off-design evaluation of organic rankine cycle (ORC) for low-grade waste heat recovery

doi:10.1016/j.energy.2020.117809

GIEC OpenIR

	Multi-objective optimization and off-design evaluation of organic rankine cycle (ORC) for low-grade waste heat recovery
	Wang, Lingbao 1,2,3; Bu, Xianbiao1,2,3 ; Li, Huashan1,2,3
	2020-07-15
发表期刊	ENERGY
ISSN	0360-5442
卷号	203 页码:14
通讯作者	Li, Huashan(lihs@ms.giec.ac.cn)
摘要	Organic Rankine Cycle (ORC) is a technically feasible way for low temperature waste heat recovery. Multi-objective optimization of the ORC using R245fa is conducted considering both thermodynamic performance and economic factors simultaneously, by means of Non-dominated sorting genetic algorithm-II. The optimum operating parameters were achieved by sorting the Pareto-optimal solutions using the technique for order preference by similarity to ideal situation. A comprehensive analysis on the off-design performance of the optimized ORC system is examined. R-ls is defined as the ratio of latent heat to sensible heat of the input heat to investigate the relation between the distribution of the input heat and the system performance. The effects of hot water temperature and mass flow rate, cooling water temperature and mass flow rate, superheated degree, subcooling degree and working pump rotational speed, on thermal efficiency, exergy efficiency, net power output, investment cost per unit power and R-ls were investigated. The fitted correlations between R-ls and the system performance indexes were derived. The novelties of the present paper are the multi-objective optimization for the further off-design behavior analysis and the quantitative relation investigation between R-ls and system performance indexes. It is indicated that the direction of system optimization is to reduce R-ls. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	Organic rankine cycle Multi-objective optimization Non-dominated sorting genetic algorithm II Off-design analysis Input heat
DOI	10.1016/j.energy.2020.117809
关键词[WOS]	PERFORMANCE ANALYSIS ; THERMODYNAMIC ANALYSIS ; ZEOTROPIC MIXTURES ; WORKING FLUIDS ; GAS-TURBINE ; TEMPERATURE ; SYSTEM ; OPERATION ; EFFICIENCY ; R245FA
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFB1501805] ; Natural Science Foundation of Guangdong Province[2018A030313018] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2017402]
WOS研究方向	Thermodynamics ; Energy & Fuels
项目资助者	National Key Research and Development Program of China ; Natural Science Foundation of Guangdong Province ; Youth Innovation Promotion Association, Chinese Academy of Sciences
WOS类目	Thermodynamics ; Energy & Fuels
WOS记录号	WOS:000542247000029
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：61[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/27475
专题	中国科学院广州能源研究所
通讯作者	Li, Huashan
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Wang, Lingbao,Bu, Xianbiao,Li, Huashan. Multi-objective optimization and off-design evaluation of organic rankine cycle (ORC) for low-grade waste heat recovery[J]. ENERGY,2020,203:14.
APA	Wang, Lingbao,Bu, Xianbiao,&Li, Huashan.(2020).Multi-objective optimization and off-design evaluation of organic rankine cycle (ORC) for low-grade waste heat recovery.ENERGY,203,14.
MLA	Wang, Lingbao,et al."Multi-objective optimization and off-design evaluation of organic rankine cycle (ORC) for low-grade waste heat recovery".ENERGY 203(2020):14.