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Effects of the generator and evaporator temperature differences on a double absorption heat transformer-Different control strategies on utilizing heat sources
Wang, Hanzhi1,2,3,4; Li, Huashan1,2,3; Bu, Xianbiao1,2,3; Wang, Lingbao1,2,3,4
2017-04-15
发表期刊ENERGY CONVERSION AND MANAGEMENT
卷号138页码:12-21
摘要The combination of the absorption heat transformer with renewable energy systems, like solar thermal systems, is raising more and more concern. In those combined systems the strategies on utilizing heat sources can affect system thermodynamic performance significantly. Therefore, this study presents a detailed analysis on the effect of the heat source temperature and different heat source flow patterns on the performance of a double absorption heat transformer (DAHT). A detailed comparative study is carried out to clarify the impact of the generator and evaporator temperature differences (GETD) on the coefficient of performance (COP), exergy efficient (ECOP), exergy destruction rates in the individual components and heat transfer areas needed for each component. The results show that the generator, condenser and absorber-evaporator are responsible for most of the exergy destruction rate in the DAHT system; the parallel-flow configuration (the generator temperature is equal to the evaporator temperature) performs better under the high gross temperature lift conditions; in the case of the counter flow configuration (the generator temperature is relatively higher), better performance can be obtained in both the COP and ECOP under the proper heat source temperature (85 and 95 degrees C); the fair-flow configuration (higher temperature in the evaporator) is not recommended in this paper due to no advantages found in either thermodynamic performance or system size. (C) 2017 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Exergy Destruction Rate Double Absorption Heat Transformer Generator Temperature Evaporator Temperature Heat Source Temperature Control Strategies
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者Science and Technology Planning Project of Guangdong Province(20138010405013) ; Pearl River S&T Nova Program of Guangzhou(2014J2200079) ; Key Laboratory of Renewable Energy, Chinese Academy of Sciences(y507j71001) ; Youth Innovation Promotion Association, Chinese Academy of Sciences(2017402) ; Science and Technology Planning Project of Guangdong Province(20138010405013) ; Pearl River S&T Nova Program of Guangzhou(2014J2200079) ; Key Laboratory of Renewable Energy, Chinese Academy of Sciences(y507j71001) ; Youth Innovation Promotion Association, Chinese Academy of Sciences(2017402)
DOI10.1016/j.enconman.2017.01.076
研究领域[WOS]Thermodynamics ; Energy & Fuels ; Mechanics
关键词[WOS]FLAT-PLATE COLLECTOR ; EXERGY ANALYSIS ; SINGLE-STAGE ; THERMODYNAMIC PERFORMANCE ; WATER/LITHIUM BROMIDE ; WORKING FLUID ; SYSTEM ; ENERGY ; WATER ; OPTIMIZATION
收录类别SCI
语种英语
资助者Science and Technology Planning Project of Guangdong Province(20138010405013) ; Pearl River S&T Nova Program of Guangzhou(2014J2200079) ; Key Laboratory of Renewable Energy, Chinese Academy of Sciences(y507j71001) ; Youth Innovation Promotion Association, Chinese Academy of Sciences(2017402) ; Science and Technology Planning Project of Guangdong Province(20138010405013) ; Pearl River S&T Nova Program of Guangzhou(2014J2200079) ; Key Laboratory of Renewable Energy, Chinese Academy of Sciences(y507j71001) ; Youth Innovation Promotion Association, Chinese Academy of Sciences(2017402)
WOS类目Thermodynamics ; Energy & Fuels ; Mechanics
WOS记录号WOS:000396948700002
引用统计
被引频次:3[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/344007/14102
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Wang, Hanzhi,Li, Huashan,Bu, Xianbiao,et al. Effects of the generator and evaporator temperature differences on a double absorption heat transformer-Different control strategies on utilizing heat sources[J]. ENERGY CONVERSION AND MANAGEMENT,2017,138:12-21.
APA Wang, Hanzhi,Li, Huashan,Bu, Xianbiao,&Wang, Lingbao.(2017).Effects of the generator and evaporator temperature differences on a double absorption heat transformer-Different control strategies on utilizing heat sources.ENERGY CONVERSION AND MANAGEMENT,138,12-21.
MLA Wang, Hanzhi,et al."Effects of the generator and evaporator temperature differences on a double absorption heat transformer-Different control strategies on utilizing heat sources".ENERGY CONVERSION AND MANAGEMENT 138(2017):12-21.
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