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Energies 2018, 11(11), 3104; https://doi.org/10.3390/en11113104

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

1
Velammal College of Engineering and Technology, Madurai 625009, India
2
College of Engineering and Computing, Alghurair University, Dubai 37374, UAE
3
Faculty of Environmental Engineering, Cracow University of Technology, 31-864 Cracow, Poland
4
Faculty of Mechanical Engineering, Institute of Thermal Power Engineering, Cracow University of Technology, 31-864 Cracow, Poland
5
Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia International Campus, JalanSemarak, Kuala Lumpu 54100, Malaysia
*
Author to whom correspondence should be addressed.
Received: 14 September 2018 / Revised: 25 October 2018 / Accepted: 25 October 2018 / Published: 9 November 2018
Full-Text   |   PDF [11309 KB, uploaded 9 November 2018]

Abstract

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. View Full-Text
Keywords: shape of rib; solar air heater; heat transfer; friction factor shape of rib; solar air heater; heat transfer; friction factor
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Kumar B., V.; Manikandan, G.; Kanna, P.R.; Taler, D.; Taler, J.; Nowak-Ocłoń, M.; Mzyk, K.; Toh, H.T. A Performance Evaluation of a Solar Air Heater Using Different Shaped Ribs Mounted on the Absorber Plate—A Review. Energies 2018, 11, 3104.

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