Abstract
The current work involves an experimental investigation of a modified v-corrugated absorber plate to get a better performance of the Solar Air Heater (SAH) collector. The thermal efficiencies of the modified and the normal v-corrugated collector having a jet plate blown systems are compared to present the actions of the modified system. The modified system is named Model-1, whereas the normal system is called Model-2. The experimentation has been done in winter 2021 in Mosul city, Iraq. The results confirm that the thermal efficiency of Model-1 is more efficient than Model-2 by 11.5 %, 14.5 %, 12.3 % and 13.2 % for 0.009 kg/s, 0.018 kg/s, 0.028 kg/s and 0.037 kg/s, respectively. The optimum thermal performance for Model-1 and Model-2 have been obtained for 0.037 kg/s and equal 82.3 % and 69.1 %, respectively. A substantial temperature difference has been found in Model-1 in comparison with Model-2. The highest outlet temperature of Model-2 is always lower than Model-1 for all mass flowrate. The enhancement in the thermal efficiency of Model-1 indicates that the use of the modified model has a considerable effect on the heat exchange efficiency.
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