A Performance Evaluation of a Solar Air Heater Using Different Shaped Ribs Mounted on the Absorber Plate—A Review

Energies

P.Rajesh Kanna¹  Dawid Taler²  Jan Taler³  Karol Mzyk³  Marzena Nowak-Ocłoń³  HoongThiam Toh⁴  Varun Kumar B.⁵  G. Manikandan⁵ 

[1] College of Engineering and Computing, Alghurair University, Dubai 37374, UAE;Faculty of Environmental Engineering, Cracow University of Technology, 31-864 Cracow, Poland;Faculty of Mechanical Engineering, Institute of Thermal Power Engineering, Cracow University of Technology, 31-864 Cracow, Poland;Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia International Campus, JalanSemarak, Kuala Lumpu 54100, Malaysia;Velammal College of Engineering and Technology, Madurai 625009, India;

关键词: shape of rib;    solar air heater;    heat transfer;    friction factor;   

DOI  :  10.3390/en11113104

来源: DOAJ

【 摘 要 】

In this paper, the effect of various shapes of ribs used in Solar Air Heaters (SAHs) was discussed. The review is concentrated on the geometry of the rib and its location on the SAH panel. Both numerical and experimental works were considered for discussion with dry air and Nano fluids as a working fluid. The influence of various shapes, such as an L shape, W shape, V shape, Multiple V shape, V shape with a gap, detachable & attachable ribs etc., was analyzed. The common fact observed from this analysis is that the implementation of artificial roughness in the absorber plate results in a considerable increase in the rate of heat transfer. Further, it is observed that ‘Multiple V-shaped with open between the ribs’ results in the maximum thermal enhancement when compared to the other shapes.

【 授权许可】

Unknown