摘要
设计一种太阳辐射集热和结构承载一体化轻钢屋面结构,并在其内部添加V型扰流孔板,提高光热转化率。利用实验数据,验证集热器的传热数学模型,并拟合得出集热器的流动阻力系数经验关系式;以热效率和有效效率为综合评价指标,分析内部结构对集热器性能的影响,并结合正交试验得出该集热器结构的最佳组合:孔隙率12%,孔板间距0.3 m,空气层厚度0.05 m,孔板与边框夹角60°。
Designing a light steel roof structure with structural bearing and solar energy utilization,which equipped with V-shaped perforated blocks to improve light and heat conversion rates. Using regressed experiment data,the heat transfer model of air collector was verified,and the empirical relationship of flow friction coefficient was deduced. Taking the thermal efficiency and effective efficiency as comprehensive evaluation indexes,the effect of structure on the collector performance was analyzed,and combining the orthogonal test,the optimized values was obtained for open area ratio of12%,gap of blocks of 0.3 m,thickness of air of 0.05 m,angle of attack of 60°.
作者
庄春龙
付博亨
邓安仲
黄光勤
张洪宇
Zhuang Chunlong;Fu Boheng;Deng Anzhong;Huang Guangqing;Zhang Hongyu(Department of National Defense Architecture Planning&Environmental Engineering,LEU,Chongqing 401311,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2019年第2期488-495,共8页
Acta Energiae Solaris Sinica
基金
重庆市科技计划(cstc2013jcyjA90016)
关键词
钢结构
孔板
阻力系数
热效率
有效效率
steel structure
well perforation
friction coefficient
thermal efficiency
effective efficiency
