作　　者： ; ; ;

机构地区： 广东海洋大学工程学院

出　　处： 《太阳能学报》 2014年第3期546-552,共7页

摘　　要： 通过实验对阵列排布的内插管式真空管太阳空气集热系统在上海冬夏工况下的集热特性进行测试分析,同时考察太阳辐射、风量对其性能的影响,并分析此类空气集热器阵列布排流动阻力特性。研究发现,真空管太阳空气集热器串并联方式工作,在冬夏工况下均能获得良好的集热温度,冬季夏季集热温度分别可达87.8、109.3℃;平均集热效率为47.4%,单个集热器压降小于80 Pa,阵列集热器压降小于100 Pa。建立空气集热器串、并联模型,模拟结果显示,随集热器数量从2个增加到6个,串联的压降比并联的压降差值增大,从107.4 Pa增大到323.6 Pa,串联能获得较高的集热温度,但动力消耗增加,并联的集热温度不高,但动力消耗小。 The e performance in vacuated tube solar air collectors system has been installed and researched in order to analyze its thermal winter and summer in Shanghai. Meanwhile the influences of solar radiation and air flowrate were studied, and the flow resistance of the solar air collectors was also researched. It was found that the outlet temperature of the system can reach to 87.82 ℃ in winter and 109.30 ℃ in summer. The average thermal efficiency is about 47.38%, the pressure difference of single collector is less than 75 Pa and the solar air collectors array is nearly 100 Pa. The models of air collectors in series and in parallel have been developed separately. The simulation results showed that, with the number of collectors from 2 to 6, the change of pressure drop in series is much bigger than in parallel, increases from 107.4 Pa to 323.6 Pa. Different from solar air collectors in parallel, the outlet temperature of solar air collectors in series is higher, but the power consumption is also bigger.

关 键 词： 真空管太阳空气集热器 串并联系统 实验 模拟

领　　域： [动力工程及工程热物理]