摘要
建立槽式太阳集热器对太阳辐射的吸收模型和换热模型,应用Matlab编制模拟计算程序,并通过现场测试验证所建模型的准确性。在此基础上模拟研究太阳辐射强度、室外气温及风速、导热油流速、导热油进口温度等参数对集热器性能的影响。结果表明:槽式太阳集热器集热效率随导热油流速和太阳辐射强度的增大而增加;随导热油进口温度的升高而降低;受室外气温及室外风速的影响较小。研究结果可为该集热器的优化设计提供参考依据。
A model of process of collecting solar energy and heat transfer of solar parabolic through collector was presented. The model was developed by Matlab software and verified by experiments installed in one building in Tianjin University, Tianjin, China. And effect of solar irradiance, outdoor air temperature, wind speed, the flow of heat-transfer medium and temperature of heat-transfer medium on performance of collector has been researched. Some results are gotten. The collector efficiency increases with the solar irradiance and the flow rate of heat-transfer medium increasing, while decreases with the inlet temperature of heat-transfer medium increasing, almost unacted on the variation of outdoor air temperature and wind speed. The results will provide the collector a reference for optimized designing.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第3期794-800,共7页
Acta Energiae Solaris Sinica
基金
基金项目:村镇建筑太阳能利用关键技术研究与示范(2011BAJ08B08)
关键词
槽式太阳集热器
集热效率
性能
传热模型
solar parabolic through collector
collector efficiency
performance
heat transfer model
