Review of the Impact of Artificial Roughness in Solar Air Heaters

Year : 2024 | Volume :11 | Issue : 01 | Page : 1-9
By

Mohammad Azim Aijaz

P.N. Ahirwar

  1. Student Department of Mechanical Engineering, Madhyanchal Professional University, Bhopal Madhya Pradesh India
  2. Associate Professor Department of Mechanical Engineering, Madhyanchal Professional University, Bhopal Madhya Pradesh India

Abstract

Artificially roughening the heated surface of solar air heaters is a practical and affordable method to significantly increase the rate of heat transmission. Roughing up the surface can improve the design of a solar air heater (SAH) duct. The use of baffles, fins, ribs and grooves improves heat transmission in the SAH. Various efforts were made to improve heat transfer rates through duct employing these components, which resulted in significant pressure drop. This article seeks to provide an overview of experimental research on the effects of ribs with various designs on fluid flow and heat transfer. It also outlines previously identified connections between the friction factor and the Nusselt number. To better understand the results of numerous studies on SAHs with different absorber surface roughness, a comparative evaluation of the literature was conducted. The aim of this work is to investigate the effects of artificial roughness on the duct’s heat transmission and friction properties.

Keywords: Solar air heaters, Absorber plate, Heat transfer efficiency, Surface roughness variations, Renewable energy

[This article belongs to Trends in Machine design(tmd)]

How to cite this article: Mohammad Azim Aijaz, P.N. Ahirwar. Review of the Impact of Artificial Roughness in Solar Air Heaters. Trends in Machine design. 2024; 11(01):1-9.
How to cite this URL: Mohammad Azim Aijaz, P.N. Ahirwar. Review of the Impact of Artificial Roughness in Solar Air Heaters. Trends in Machine design. 2024; 11(01):1-9. Available from: https://journals.stmjournals.com/tmd/article=2024/view=146178




Browse Figures

References

  1. Imtiyaz, N.K. Saini, B. Kumar, A Review on Roughness Geometries used in Solar Air Heaters for Performance Enhancement. Int. J. Appl. Eng.Res. 2019;14(9): 99–107.
  2. Sahil Singh, Sahil Thappa, Harsimran Singh, and Tejbinder Singh, “Various roughness geometries used in solar air heater – A review,” J. of Sci. Tech. Adv., 2018;4(1): 151–156.
  3. S. Yadav, M.K. Thapak, Artificially roughened solar air heater: experimental investigations, Renew. Sustain. Energy Rev. 2014;36: 370–411.
  4. L. Webb, E.R.G. Eckert, R.J. Goldstein, Heat transfer and friction in tubes with repeated-rib roughness, Int. J. Heat Mass Transf. 1971;14 (4): 601–617.
  5. N. Prasad, J.S. Saini, Effect of artificial roughness on heat transfer and friction factor in a solar air heater, Sol. Energy. 1988;41(6): 555–560.
  6. Anil Singh Yadav, A. Agrawal, A. Sharma et al., Augmented artificially roughened solar air heaters, Materials Today: Proceedings, https://doi.org/10.1016/j.matpr.2022.02.548
  7. Anil Singh Yadav and A. Gattani, Revisiting the influence of artificial roughness shapes on heat transfer enhancement, Materials Today: Proceedings, https://doi.org/10.1016/j.matpr.2021.12.254
  8. M. Sahu, J.L. Bhagoria, Augmentation of heat transfer coefficient by using 90° broken transverse ribs on absorber plate of solar air heater, Renew. Energy. 2005:30(13): 2057–2073.
  9. C. Han, J.S. Park, Developing heat transfer in rectangular channels with rib turbulators, Int. J. Heat Mass Transf. 1988;31(1): 183–195.
  10. Gupta, S.C. Solanki, J.S. Saini, Thermohydraulic performance of solar air heaters with roughened absorber plates, Sol. Energy. 1997;61 (1): 33–42.
  11. -M. Ebrahim Momin, J.S. Saini, S.C. Solanki, Heat transfer and friction in solar air heater duct with V-shaped rib roughness on absorber plate, Int. J. Heat Mass Transf. 2002;45(16): 3383–3396.
  12. N. Prasad, J.S. Saini, Effect of artificial roughness on heat transfer and friction factor in a solar air heater, Sol. Energy. 41 1988;(6): 555–560.
  13. Gupta, S.C. Solanki, J.S. Saini, Heat and fluid flow in rectangular solar air heater ducts having transverse rib roughness on absorber plates, Sol. Energy. 1993;51(1): 31–37.
  14. K. Verma, B.N. Prasad, Investigation for the optimal thermohydraulic performance of artificially roughened solar air heaters, Renew. Energy.. 2000;20(1): 19–36.
  15. K. Saini, R.P. Saini, Development of correlations for Nusselt number and friction factor for solar air heater with roughened duct having arc-shaped wire as artificial roughness, Sol. Energy. 2008;82 (12): 1118–1130.
  16. Karwa, S.C. Solanki, J.S. Saini, Heat transfer coefficient and friction factor correlations for the transitional flow regime in rib-roughened rectangular ducts, Int. J. Heat Mass Transf. 1999;42(9): 1597–1615.
  17. P. Saini, J. Verma, Heat transfer and friction factor correlations for a duct having dimple-shape artificial roughness for solar air heaters, Energy. 2008;33(8): 1277–1287.
  18. Sethi, Varun, N.S. Thakur, Correlations for solar air heater duct with dimpled shape roughness elements on absorber plate, Sol. Energy. 2012;86 (9): 2852–2861.
  19. R. Jaurker, J.S. Saini, B.K. Gandhi, Heat transfer and friction characteristics of rectangular solar air heater duct using rib-grooved artificial roughness, Sol. Energy. 2006;80(8): 895–907.
  20. Varun, A. Patnaik, R.P. Saini, S.K. Singal, Siddhartha, Performance prediction of solar air heater having roughened duct provided with transverse and inclined ribs as artificial roughness, Energy. 2009;34(12): 2914–2922.
  21. Layek, J.S. Saini, S.C. Solanki, Effect of chamfering on heat transfer and friction characteristics of solar air heater having absorber plate roughened with compound turbulators, Renew. Energy. 2009;34 (5): 1292–1298.

Regular Issue Subscription Review Article
Volume 11
Issue 01
Received January 25, 2024
Accepted April 8, 2024
Published May 14, 2024