摘要
不同冷却水流量条件下,板管式光伏光热(PV/T)系统的性能会发生显著变化。文章通过实验测试了当冷却水流量发生变化(0～0.25 kg/s)时,板管式PV/T组件的温度、发电功率、冷却水温度,以及板管式PV/T系统热效率的变化情况。分析结果表明:当冷却水流量为0～0.25 kg/s时,PV/T组件发电功率的平均值比PV组件增加了约5%,同时,PV/T系统的热效率可达到约57%;板管式PV/T组件的发电功率随着PV/T组件温度的升高而降低,PV/T系统的热效率随着冷却水温度的升高而升高。
The performance of sheet-tube photovoltaic/thermal(PV/T)system could be significant varied under different cooling water flow rates conditions.In the experiment,the temperature and output power of PV/T module,the temperature of water and the thermal efficiency of PV/T system have been tested,which are affected by the various flow rates(0~0.25kg/s)of the cooling water.Results showed that the output power average of the PV/T module increased by approximately 5%more than the PV module,and the thermal efficiency of the PV/T system reached to approximately 57%,when the flow rate of cooling water varied from 0kg/s to 0.25kg/s.In addition,the output power of the PV/T module decreased with the temperature increasing,but the thermal efficiency increased with the water temperature increasing.
作者
庞玮
于洪文
张林睿
张小燕
张永哲
严辉
Pang Wei;Yu Hongwen;Zhang Linrui;Zhang Xiaoyan;Zhang Yongzhe;Yan Hui(College of Materials Science and Engineering,Beijing University of Technology,Beijing 100124,China;College of Building and Engineering,Yinchuan University of Energy,Yinchuan 750105,China)
出处
《可再生能源》
CAS
北大核心
2019年第2期184-189,共6页
Renewable Energy Resources
基金
国家自然科学基金(61574009
11574014)
关键词
光伏光热系统
冷却水流量
功率衰减
热效率
sheet-tube PV/T system
cooling water flow rate
power decay
thermal efficiency
