平板太阳能空气集热器的数值模拟研究

屋檐上的狗 · 发表于 2015-7-13 22:49:35

平板太阳能空气集热器的数值模拟研究
Numerical Investigation of Flat Plate Solar Air Collectors
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作　　者：贾胜辉
JIA Shenghui（ Deparment of Architecture Engineering, Suqian College, Suqian 223800, Jiangsu, China）
机构地区：宿迁学院建筑工程系,江苏宿迁223800
出　　处：《建筑科学》 2015年第31卷第2期 85-91页,共7页
Building Science
摘　　要：为评估4种不同类型平板太阳能空气集热器的热性能,本文建立了平板空气集热器的二维稳态CFD模型,对集热器内部空气的流动及热量的传递过程进行数值模拟,并获得了集热器热性能曲线.模拟结果表明,在标准流量下,双流道型（c型）平板空气集热器最大热效率达79.44％,热损系数为5.80,热效率高于其他3种类型的空气集热器,热性能最优.随着空气流量的增加,b型平板太阳能空气集热器由于具有较好的保温特性而表现出更优的集热性能.
A two-dimension CFD model was developed solar air collector to compare the four different kinds of to study steady-state thermal performance of the flat plate collectors. The computational fluid dynamics program was used to solve the coupled fluid flow, heat transfer, and thermal performance curve. The simulation results indicated that the maximum efficiency and the heat loss factor of the double channel flat plate air collector （Type c） obtained by numerical investigation are 79.44% and 5.8 respectively at the mass flow rate of 0. 025 kg/（s·m^2 ）. It is proven that the thermal performance of the double channel collector is superior to other collectors at the standard flow rate. Type b air collector shows better thermal performance with increased air mass flow rate because of better insulation characteristics.
关键词：平板太阳能空气集热器数值模拟热性能热损系数热效率
fiat plate solar air collector, CFD simulation, thermal performance, flow rate ;

[技术] 平板太阳能空气集热器的数值模拟研究

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