碟式聚光太阳能热发电系统用腔式吸热器热性能分析  

Thermal performance analysis of cavity-receiver for the dish-type solar energy thermoelectric system

作　　者：张春平[1] 刘志刚[1] 赵耀华[1] 唐大伟[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080

出　　处：《上海理工大学学报》2004年第4期294-297,共4页Journal of University of Shanghai For Science and Technology

基　　金：国家863计划资助项目(2003AA516022)

摘　　要：对集热系统中的平顶锥形腔式吸热器进行热性能分析及实验研究.计算给出了在各种温度下各项热损失所占的比重及吸热器的总体热效率.实验得出了加热功率与腔式吸热器热效率的关系,表明平顶锥形腔式吸热器具有较好的热性能.The thermal performance of the conical cavity-type receiver for solar energy collecting system are investigated by experimental data and numerical models.The proportion of diversified heat losses and the entire thermal efficiency in different temperatures are calculated based on the numerical models.The relationship between the heat power and the cavity receiver's efficiency is obtained by the experimental data.The experimental results show that the thermal performance of the conical cavity-type receiver is considerably steady and the thermal efficiency is up to 85%.

关 键 词：太阳能 热性能 腔式吸热器 热效率 

分 类 号：TK124[动力工程及工程热物理—工程热物理]