Optimization and Analysis of Thermal System in Power Plants by Using Combined Pinch and Exergy Analysis

被引：0
|
作者：
Zhang, Feiran [1 ]
Yao, Yushan [1 ]
Xu, Qi [1 ]
机构：
[1] Southeast Univ, Sch Energy & Environm, Nanjing, Jiangsu, Peoples R China
来源：
2015 4TH INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENTAL PROTECTION (ICEEP 2015) | 2015年
关键词：
Optimization of energy efficiency; Pinch technology; Exergy analysis; Heat exchanger network; Combined pinch and exergy analysis(CPEA);
D O I：
暂无
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：
This paper combined pinch technology and exergy analysis (CPEA) to design and analyze the thermal system in steam power plants. In order to improve the thermal efficiency of the system and tap the available potential, a study was performed on a 630MW unit. Through the analysis of composite curves and the exergy distribution, at a given temperature of the pinch point, create more pinch points to achieve the reduction of exergy destruction and build up a corresponding model to calculate the flow of heat extraction after improvement. The calculation results show that the efficiency has improved from 48.02% to 48.27% and the fuel consumption and the load of condenser is reduced by 0.52% and 0.46%, respectively.
引用
收藏
页码：3295 / 3301
页数：7
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