太阳能空气加热器纵向翅片的传热和热性能的实验研究。
Experimental study of heat transfer and thermal performance with longitudinal fins of solar air heater.
机构信息
Mechanical Department, Faculty of Technology, University of Biskra, Biskra 07000, Algeria ; Mechanical Laboratory, Faculty of Technology, University of Biskra, Biskra 07000, Algeria.
Mechanical Department, Faculty of Technology, University of Biskra, Biskra 07000, Algeria ; Material Sciences Laboratory, Faculty of Science, University of Biskra, Biskra 07000, Algeria.
出版信息
J Adv Res. 2014 Mar;5(2):183-92. doi: 10.1016/j.jare.2013.03.001. Epub 2013 Apr 9.
The thermal performance of a single pass solar air heater with five fins attached was investigated experimentally. Longitudinal fins were used inferior the absorber plate to increase the heat exchange and render the flow fluid in the channel uniform. The effect of mass flow rate of air on the outlet temperature, the heat transfer in the thickness of the solar collector, and the thermal efficiency were studied. Experiments were performed for two air mass flow rates of 0.012 and 0.016 kg s(-1). Moreover, the maximum efficiency values obtained for the 0.012 and 0.016 kg s(-1) with and without fins were 40.02%, 51.50% and 34.92%, 43.94%, respectively. A comparison of the results of the mass flow rates by solar collector with and without fins shows a substantial enhancement in the thermal efficiency.
实验研究了带有五个翅片的单程太阳能空气加热器的热性能。在吸收器板下方使用纵向翅片来增加热交换并使通道中的流体均匀流动。研究了空气的质量流量对出口温度、太阳能集热器厚度内的传热和热效率的影响。进行了两种空气质量流量为 0.012 和 0.016kg/s 的实验。此外，带有和不带有翅片的 0.012 和 0.016kg/s 的最大效率值分别为 40.02%、51.50%和 34.92%、43.94%。带有和不带有翅片的太阳能集热器的质量流量结果的比较表明，热效率有了很大的提高。
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