Study of Air Flow in A Solar Collector Equipped with Two Inclined Obstacles

Abstract

In the present work we have studied the case of a conventional solar air collector and try to see how is it possible to improve it-s efficiency, by changing Reynolds number. Given the complexity of the problem we used the FLUENT calculation code. We made the mathematical model, then we gave a validation of our result by the results of Dimartini, we gave fields of speed, turbulence and a Nusselt profile and factor of friction as a function of the Reynolds Number. The results show that variation of Reynolds number has an influence on the performance of the solar collector, which is why we have used several values in order to observe the most suitable one.

Three-dimensional numerical analysis of the thermo-aerodynamic characteristics of air- plane solar collectors and improving thermal efficiency through baffle design: a comparative CFD study

“…In the field of solar dryer development, Petros Demissiea et al [4] built an experimental setup for a solar dryer and simulated it in 3D using CFD, which allowed them to predict the airflow distribution in the dryer and the temporal distribution of the temperature inside the solar dryer, and finally, they experimentally validated the temperature distribution. Researchers Fayssal Benosman et al [5] studied the case of a solar collector equipped with two obstacles inclined at 45° using the Fluent calculation code. They varied the air entry speed and therefore the Reynolds number and tried to see the influence of this variation on the performance of the sensor.…”