• Thermal Performance of Recycle Pass Solar Air Heater with V-Corrugated Absorber Plate
• Author  :  Ammar A. Farhan
• Pages   :  212-216
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• Abstract

The performance of recycle pass solar air heater with V-corrugated absorber plate was examined experimentally. The results were compared with single pass solar air heater with V-corrugated absorber plate. The measured parameters were temperature difference, useful energy, pressure drop, and collector efficiency. It’s founded that, the recycle pass has an increase in these parameters as they compared with single pass. The air flow rate range between 0.01 – 0.03 m3/s was tested in winter 2016 in Iraq. Experimental data show that, the useful energy and thermal efficiency were increased with increases of air flow rate. The useful energy generated by recycle pass was 18.8 % more energy per day than the single pass solar air heater. Maximum temperature difference between outlet air temperature and ambient temperature for recycle pass and single pass were 31 oC and 25 oC, respectively. The maximum value of the performance curve of the recycle and single pass were 68 % and 61 %, respectively.

Keywords: Thermal performance, Recycle pass, Solar air heater, V-corrugated

Article published in International Journal of Current Engineering and Technology, Vol.6, No.3 (Sept-2016)