Sensitivity analysis and thermoeconomic comparison of ORCs (organic Rankine cycles) for low temperature waste heat recovery

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	Sensitivity analysis and thermoeconomic comparison of ORCs (organic Rankine cycles) for low temperature waste heat recovery
	Feng, Yongqiang 1; Zhang, Yaning 1; Li, Bingxi 1; Yang, Jinfu 2; Shi, Yang 1
刊名	ENERGY
	2015-03-15
卷号	82 页码:664-677
关键词	Organic Rankine cycles (ORCs) Thermoeconomic comparison Heat exchanger area per unit net power output (APR) Non-dominated sorting genetic algorithm-II (NSGA-II)
英文摘要	The sensitivity analysis for low temperature ORCs (organic Rankine cycles), as well as the thermoeconomic comparison between the basic ORC and regenerative ORC using Non-dominated sorting genetic algorithm-II (NSGA-II), are conducted in this paper. The derivatives of five system parameters on system performance are used to evaluate the parametric sensitiveness. The exergy efficiency and the APR (heat exchanger area per unit net power output) are selected as the objective functions for multi-objective optimization using R123 under the low temperature heat source of 423 K. The Pareto frontier solution with bi-objective for maximizing exergy efficiency and minimizing APR is obtained and compared with the corresponding single-objective solutions. The results indicate that the prior consideration of improving thermal efficiency and exergy efficiency is to increase the evaporator outlet temperature. A fitting curve can be yielded from the Pareto frontier between the thermodynamic performance and economic factor. The optimum exergy efficiency and APR of the regenerative ORC obtained from the Pareto-optimal solution are 59.93% and 3.07 m(2)/kW, which are 8.10% higher and 15.89% lower than that of the basic ORC, respectively. The Pareto optimization compromises the thermodynamic performance and economic factor, therefore being more suitable for decision making. (C) 2015 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Energy & Fuels
研究领域[WOS]	Thermodynamics ; Energy & Fuels
关键词[WOS]	LOW-GRADE HEAT ; WORKING FLUIDS ; MULTIOBJECTIVE OPTIMIZATION ; POWER-GENERATION ; PERFORMANCE ANALYSIS ; ZEOTROPIC MIXTURES ; PARAMETRIC OPTIMIZATION ; THERMODYNAMIC ANALYSIS ; EXERGY ANALYSIS ; DRY FLUIDS
收录类别	SCI
语种	英语
WOS记录号	WOS:000351788700060
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/98939]
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.Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150006, Peoples R China 2.Chinese Acad Sci, Inst Engn Thermophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Feng, Yongqiang,Zhang, Yaning,Li, Bingxi,et al. Sensitivity analysis and thermoeconomic comparison of ORCs (organic Rankine cycles) for low temperature waste heat recovery[J]. ENERGY,2015,82:664-677.
APA	Feng, Yongqiang,Zhang, Yaning,Li, Bingxi,Yang, Jinfu,&Shi, Yang.(2015).Sensitivity analysis and thermoeconomic comparison of ORCs (organic Rankine cycles) for low temperature waste heat recovery.ENERGY,82,664-677.
MLA	Feng, Yongqiang,et al."Sensitivity analysis and thermoeconomic comparison of ORCs (organic Rankine cycles) for low temperature waste heat recovery".ENERGY 82(2015):664-677.