摘要
菲涅尔透镜式太阳能集热器具有环保、经济和结构简单等优点。文章利用带有自动跟踪控制系统的小型菲涅尔透镜式太阳能蓄热空气罐对空气进行循环加热,通过观测太阳辐射强度、外界环境温度以及通风管出口温度的变化情况,分析太阳能蓄热空气罐供暖系统的各项性能。分析结果表明:太阳能蓄热空气罐供暖系统集热效率的最大值可以达到60%;通风管出口温度比环境温度约高出50℃。利用太阳能蓄热空气罐供暖系统在冬季进行供暖是可行的。
Fresnel lens solar collectors are environmentally friendly,economical and simple in structure.The article uses a small Fresnel lens solar thermal storage air tank with an automatic tracking control system to circulate the air.The operation of the solar heating system was studied by observing the changes of solar radiation intensity,outdoor ambient temperature and outlet air temperature of ventilation duct.The experimental results showed that the instantaneous thermal efficiency of the system can reach 60%,and the outlet air temperature of ventilation duct was about 50℃higher than the ambient temperature.Heating in the winter is feasible with the system.
作者
赵琰
苑中显
文鑫
Zhao Yan;Yuan ZhongXian;Wen Xin(College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China)
出处
《可再生能源》
CAS
北大核心
2020年第9期1175-1180,共6页
Renewable Energy Resources
基金
国家重点基础研究发展计划(2015CB251303)。
关键词
太阳能
菲涅尔透镜
空气集热供暖
集热效率
solar energy
fresnel lens
air collector heating
thermal efficiency
