摘要
对塔式太阳能热电站进行能量分析,可有效地提升系统性能。传统的(火用)分析可从本质上揭示热力系统中能量损失发生的部位及原因,而先进(火用)分析通过将部件的(火用)拆分量化计算,可进一步提示部件与系统间的耦合关系。本文以某太阳能塔式热发电站的能量系统为研究对象,在给定的镜场布置与太阳辐射模型条件下,计算出各子系统的(火用)损与(火用)效率,定位能耗较高的部件。在此基础上,开展先进(火用)分析的计算,得到各部件的内部/外部(火用)损的结果,对各部件的不可逆性与系统耦合影响进行了量化分析。文中所用方法可为塔式光热系统的优化设计提供参考。
Improving performance of solar tower power plants via exergy analysis has been proven to be technically efficient.However,the conventional exergy analysis focuses exclusively on the position and cause of energy destruction.In this study,advanced exergy analysis of solar tower power plant was performed for further revealing the coupling between components and system by splitting exergy destructions.Given heliostat field and solar radiation models,the exergy destructions and efficiencies of each sub-system were assessed,locating the components with high energy consumption.On this basis,advanced exergy analysis identified the endogenous/exogenous exergy-destruction of each components,and quantitatively evaluated the irreversibility and coupling effect.The advanced exergy analysis methods of this work have been developed to help optimization design of the future solar tower power plants.
作者
付鹏
王志峰
余强
乔加飞
徐二树
李承周
Fu Peng;Wang Zhifeng;Yu Qiang;Qiao Jiafei;Xu Ershu;Li Chengzhou(Institute of Electrical Engineering,Chinese Academy of Science,Beijing 100190,China;Shenhua Guohua(Beijing)Power Research Institute Co.,Ltd.,Beijing 100024,China;School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 100026,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第11期86-97,共12页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51606184)。
关键词
太阳能
传热
太阳能热发电电站
能效
塔式
热力学
solar energy
heat transfer
solar power plants
energy efficiency
tower
thermodynamics
