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The Improvement Of The Solar Air Heater Duct By Wired Ribs Utilization, Osamah Raad Skheel Alkhafaji
The Improvement Of The Solar Air Heater Duct By Wired Ribs Utilization, Osamah Raad Skheel Alkhafaji
Karbala International Journal of Modern Science
Abstract Heat transfer coefficient of the solar air heater duct (SAH) is low due increasing the thermal performance of its absorber. The present study tends to enhance the thermal characteristics of the SAH by adopting the wired ribs on the absorber under different ribs dimensions and arrangements. A rectangular duct is used to form the SAH with length L=1500mm, width w=100mm and height H=30mm. The used heat fluxes over the absorber are 1000W/m2 and 500W/m2 while the operated Reynolds number range is 708 ~ 6375. The utilized wired ribs are arranged over the absorber so as to develop a relative …