Experimental study of a solar air heater by adding an arrangement of transverse rectangular baffles perpendicular to the air stream. Issue 14 (14th November 2019)

• Record Type: Journal Article
• Authors: Chabane, Foued; Grira, Fares; Moummi, Noureddine; Brima, Abdelhafid
• Is Part Of: International journal of green energy. Volume 16:Issue 14(2019)
• Page Start: 1264
• Page End: 1277
• Publication Date: 2019-11-14
• Subjects: Solar collector -- rectangular baffles -- Reynolds number -- outlet temperature -- pressure drop -- thermal efficiency; Power resources -- Research -- Periodicals; Energy industries -- Periodicals; Energy development -- Periodicals; 333.79
• DOI: 10.1080/15435075.2019.1671401
• Languages: English
• ISSNs: 1543-5075

Abstract

ABSTRACT: The aim study in the solar air collector is a focus on the matter of the deficiency of the thermal transfer between the fluid and the absorber plate, so we built a thermal solar flat plate collector and made some adjustments. The collector was built in the hall of Department of Mechanical Engineering based in the University of Biskra, by considering to minimize the thermal losses to the minimum and increasing the difference between the inlet and the outlet temperatures (thermal efficiency) by adding a rectangular baffles perpendicular to the air stream. The experiment was divided into different modes. Each mode has its own specific number and placement of baffles. This article represents the results that were taken from the experimental study, which shows the increase in the thermal efficiency by a significant value. We also present the effects of other variations on the thermal efficiency itself. It has also been found that thermal efficiency with median and all placement transversal baffle of solar air heater is greater than another mode, using same air flow rate and number of baffles. Finally, the pressure drop associated with increasing number of baffles and air flow rate was deliberated.