32
doi:10.3969/j.issn.10093230.2015.09.010
应用能源技术
2015年第9期（总第213期）
抛物面槽式太阳能集热器性能分析
李换兵'，郑秋榕”，崔凝
（1.华北电力大学能源动力与机械工程学院，河北保定071003； 2.厦门市恒力机电设备运营有限公司，福建厦门361000)
要：为研究抛物面槽式太阳能光热电站热力系统的动态特性，以美国SECS电站VI号摘
机组(SECSVI)为对象，采用理论建模和数学计算的方法对抛物面槽式太阳能电站聚光集热器的性能进行了分析。根据太阳时的变化，通过计算南北放置、东西跟踪抛物面槽式太阳能集热器的入射角，分析抛物面槽式集热器的余弦效应、入射角修正因子、行间遮档和端部损失的变化情况，以及各几何损失和光学损失对集热器获得有效太阳辐射能的影响程度。结果表明：不同季节典型日几何损失对集热器获得有效辐射能的影响夏季最小，冬季最大；所有几何损失中，余弦效应是影响集热器获得有效辐射能的主要因素。研究结果为SEGSVI电站热力系统实时动态仿真模型提供全面可靠的基础数据。
关键词：抛物面槽式集热器；几何损失；光学损失；效率；有效辐射能
中图分类号：TK514
文献标志码：A
文章编号：1009-3230(2015)09003206
Performanceanalysisofparabolictroughsolarcollector
LI Huan bing, ZHENG Qiurong, CUI Ning
(1. School of Energy, Power and Mechanical Engineering,North China Electric Power University
Baoding 071003, Hebei Province, China;2. Xiamen Hengli Electromechanical Equipment
OperationCo.，Ltd，Xiamen36100o，FujianProvince，China)
Abstract: To study the dynamic characteristics of the thermodynamic system of the parabolic trough solar power station,as America SEGS power plant unit VI(SECS VI) is the research object, analyzed the performance of the collector of a parabolic trough solar power station by theoretical modeling and mathematical calculation. Solar incidence angle of the parabolic trough solar collector was computed according to the variation in sun time when the collector tracks from east to west along the horizontal north south axis. Then analyzed the changes of cosine effect, incident angle correction coefficient, line block and end loss of the parabolic trough solar collectors, and the influence degree of the geometric and optical losses to the collector gain effective solar radiation energy. The results show that, the effect of geometric loss on the effective radiation energy of the collector is the smallest in summer and the largest in winter on the typical day. The cosine effect is the main factor that affects the effective radiation energy of the collector in all the geometric loss. The research provide comprehensive and reliable basic data for the real time simulation model of thermal of thermal systemofpowerplantSEGSVI.
Key words:Parabolic Trough Collector; Geometric losses; Optical losses; Efficiency; Effective radiation
收稿日期：201507-16
修订日期：20150821
作者简介：李换兵（1989－），女，硕士研究生，研究方向为常
规精式抛物面太阳能光热电站热力系统动态特性研究。
万方数据
0引言
抛物面槽式太阳能热动力发电（solarthemal power plant using parabolic trough collectors, PTCs