Power plant;
Thermal performance;
Two stage cycle;
Working fluids;
Optimization;
Organic Rankine Cycle (ORC);
WORKING FLUIDS;
OPTIMIZATION;
ORC;
D O I:
10.1016/j.apenergy.2012.05.044
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
A two stage Rankine cycle for power generation is presented in this paper. It is made of a water steam Rankine cycle and an Organic Rankine bottoming Cycle. By using an organic working fluid with higher density than water, it is possible to reduce the installation size and to use an air-cooled condenser. In order to search suitable working fluids for our application, nine potential candidates from four different organic fluid families and ammonia are tested. The performances of the two stage Rankine cycle operating with those different working fluids are evaluated. The influences of design external temperatures and the steam turbine outlet pressure on the system are analyzed. Optimal points are found at different cold source temperatures and steam turbine outlet pressures for each fluid. System efficiency can also be enhanced by introducing a regenerator for some of the selected working fluids. (C) 2012 Elsevier Ltd. All rights reserved.
机构:
Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R ChinaBeijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
Wang, Hai-Xiao
Lei, Biao
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机构:
Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R ChinaBeijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
Lei, Biao
Wu, Yu-Ting
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机构:
Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R ChinaBeijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
Wu, Yu-Ting
Zhang, Xiao-Ming
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机构:
Inner Mongolia Univ Sci & Technol, Sch Informat Engn, Baotou 014010, Inner Mongolia, Peoples R ChinaBeijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
机构:
Southeast Univ, Sch Energy & Environm, Nanjing 210096, Peoples R ChinaSoutheast Univ, Sch Energy & Environm, Nanjing 210096, Peoples R China
Li, Zuqiang
Zhang, Naiji
论文数: 0引用数: 0
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机构:
Jiangsu Dev & Reform Commiss, Nanjing 210036, Peoples R ChinaSoutheast Univ, Sch Energy & Environm, Nanjing 210096, Peoples R China
Zhang, Naiji
Cai, Liang
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机构:
Southeast Univ, Sch Energy & Environm, Nanjing 210096, Peoples R China
Southeast Univ, Inst Sci & Technol Carbon Neutral, Nanjing 210096, Peoples R China
SEU Yangtze River Delta Carbon Neutral Strategy De, Nanjing 210096, Peoples R ChinaSoutheast Univ, Sch Energy & Environm, Nanjing 210096, Peoples R China