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Grey relational analysis of an integrated cascade utilization system of geothermal water
Luo, Xianglong1,2; Wang, Yongzhen1; Zhao, Jun2; Chen, Ying1; Mo, Songping1; Gong, Yulie3
2016
发表期刊INTERNATIONAL JOURNAL OF GREEN ENERGY
卷号13期号:1页码:14-27
摘要With the drastic decrease in fossil resources and rapid deterioration of the global environment, the utilization of geothermal resources has been strongly advocated. The combination of heat, power, and cold utility generation is commonly used to increase the utilization efficiency of geothermal resources. In this study, an integrated cascade utilization system of waste geothermal water (ICUWGW) from a flash geothermal power plant in China is established to increase the utilization efficiency of geothermal water. The waste geothermal water leaving the power plant is proposed for further use in cascade for two-stage LiBr/H2O absorption cooling, agricultural product drying, and residential bathing. Twelve candidate temperature schemes showing different inlet and outlet temperatures of every subsystem are proposed for the ICUWGW. Several criteria are selected for the evaluation and screening of the candidate schemes. Grey relational analysis incorporating analytic hierarchy process is conducted to screen the optimal temperature scheme for the ICUWGW to meet the comprehensive criteria of thermodynamics and economics. Results show that the optimal scheme features significant improvement in energy efficiency, exergy efficiency, and equivalent electricity generation efficiency compared with those of the current geothermal power plant. The investment payback time of the additional subsystems for cooling, drying, and bathing is 1.85 years. Exergy analysis is also conducted to determine the further optimization potential of the optimal ICUWGW. Sensitivity analysis of electricity price on the performance of the optimal ICUWGW is also performed.
文章类型Article
关键词Cascade Utilization Exergy Analysis Geothermal Resource Grey Relational Analysis Multi Criteria
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1080/15435075.2014.896259
研究领域[WOS]Thermodynamics ; Energy & Fuels
关键词[WOS]REFRIGERATION SYSTEM ; OPTIMIZATION ; ENERGY ; POWER ; PARAMETERS ; DRIVEN ; FLUIDS
收录类别SCI
语种英语
WOS类目Thermodynamics ; Energy & Fuels
WOS记录号WOS:000363188800002
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10878
专题中国科学院广州能源研究所
作者单位1.Guangdong Univ Technol, Guangzhou Higher Educ Mega Ctr, Sch Mat & Energy, Guangzhou, Guangdong, Peoples R China
2.Tianjin Univ, Key Lab Efficient Utilizat Low & Medium Grade Ene, Minist Educ, Tianjin 300072, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China
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Luo, Xianglong,Wang, Yongzhen,Zhao, Jun,et al. Grey relational analysis of an integrated cascade utilization system of geothermal water[J]. INTERNATIONAL JOURNAL OF GREEN ENERGY,2016,13(1):14-27.
APA Luo, Xianglong,Wang, Yongzhen,Zhao, Jun,Chen, Ying,Mo, Songping,&Gong, Yulie.(2016).Grey relational analysis of an integrated cascade utilization system of geothermal water.INTERNATIONAL JOURNAL OF GREEN ENERGY,13(1),14-27.
MLA Luo, Xianglong,et al."Grey relational analysis of an integrated cascade utilization system of geothermal water".INTERNATIONAL JOURNAL OF GREEN ENERGY 13.1(2016):14-27.
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