摘要
为了了解太阳能集热水温变化,搭建了太阳能全玻璃真空管集热装置实验台,利用EES软件建立了太阳能集热系统模型,并实验验证了模型的正确性。基于郑州地区典型日的气象参数,计算了集热装置的逐时集热效率、集热量及不同水量下水温的变化情况。研究表明:集热装置连续闷晒两天,第一天的水温温升和集热效率大于第二天,且模拟计算集热效率略高于实验值;典型日下集热效率平均值为0.52,集热量最高可达到1320 W;当水量为80 L时,水温在15:00时可达到100℃,该研究可为太阳能建筑的推广应用提供基础理论依据。
A simulation model about solar collector vacuum tube collector device was established for researching the solar collector water temperature change based on the software EES. The hourly heat collector efficiency, heat-collecting capacity and the variation of temperature under different water volume based on typical day have been calculated. Research shows that： the increased temperature and the heat collector efficiency on the first day are higher than that of the second day, and the heat collector efficiency of simulation data is higher than the experimental data when the solar collector system continuous runs two days. The average heat collector efficiency is 0.52, heat-collecting capacity can be achieved 1320 W. When the water volume is 80 L, the temperature can reach 100 ℃ at 15：00 on typical day. This study can provide a theoretical basis for the promotion of solar architecture.
出处
《建筑热能通风空调》
2016年第7期22-24,6,共4页
Building Energy & Environment
基金
国家自然科学基金(No.51306214)
河南省教育厅创新人才(14HASTIT003)
河南省省级骨干教师(2013GGJS-114)
关键词
真空管集热装置
逐时变化
集热水温
集热效率
vacuum tube collector device, hourly variation, collector temperature, heat collector efficiency
