熔盐槽式太阳能热发电站集热系统性能研究  

PERFORMANCE RESEARCH ON SOLAR FIELD OF MOLTEN SALT PARABOLIC TROUGH SOLAR POWER PLANTS

作　　者：王慧富 吴玉庭[1] 张晓明 马重芳[1] 汪天凯 Wang Huifu;Wu Yuting;Zhang Xiaoming;Ma Chongfang;Wang Tiankai(MOE Key Laboralory of Enhanced Heat Transfer and Energy Conservation,Beijing Key Laboratory of Heat Transfer and Energy Conversion,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学环境与能源工程学院传热强化与过程节能教育部重点实验室及传热与能源利用北京市重点实验室,北京100124

出　　处：《太阳能学报》2020年第6期317-325,共9页Acta Energiae Solaris Sinica

基　　金：国家重点基础研究发展(973)计划(2015CB251303)。

摘　　要：通过SAM软件建立了建设在中国拉萨市、以低熔点熔盐为集热蓄热工质的80 MW熔盐槽式太阳能热发电站模型,结合理论分析,通过参数分析法,以槽式集热系统的集热效率等性能参数为优化目标,对该槽式电站模型的集热系统进行模拟优化分析。主要分析了集热器的开口宽度和集热系统的布置方案对熔盐槽式电站集热系统性能的影响。通过对比分析各组数据,得到适用于熔盐槽式电站的集热器、集热器阵列最佳布置方案(即集热系统单回路中最佳集热器数量和总回路数)、集热系统工质最佳设计出口温度和集热系统最佳分区数之间的匹配关系。The model of 80 MW trough solar power plants constructed in Lhasa which uses low melting point molten salt as heat transfer and heat storage material is established by SAM.Taking the efficiency of the trough solar collection system as the optimization objective,the solar power plants model is simulated and optimized by the parametric analysis method.The aperture width of collectors and the layout of solar field are studied mainly.By analyzing the data,the optimum aperture width of trough parabolic concentrator,which is suitable to this solar power plant with molten salt,is obtained.What’s more,the optimal layout of solar field,i.e.number of SCA assemblies per loop and actual number of loops,and optimal value of design loop outlet temperature of HTF and number of field subsections are presented.

关 键 词：太阳能热发电 集热器 数值模拟 熔融盐 SAM 槽式 

分 类 号：TK519[动力工程及工程热物理—热能工程]