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Numerical Investigation of Thermo-Hydraulic Characteristics of Non-Uniform Transverse Rib Roughened Solar Heater

  • SOLAR INSTALLATIONS AND THEIR APPLICATION
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Abstract

A 3-D computational fluid dynamics (CFD) investigation on heat transfer and fluid flow of solar air heater duct roughened with transverse rib of non-uniform cross-section of square wave profile has been carried out using ANSYS Academic Research CFD 15.0. For comparison, transverse rib of uniform square and circular cross-section has also been investigated. Relative roughness pitch and relative roughness width of rib roughness have been taken as 10 and 85 respectively. Relative roughness height and Reynolds number were varied from 0.015–0.043 and 3000–15 000, respectively. The present CFD methodology has been validated with the experimental results. The maximum augmentation in Nusselt number over that of smooth duct was 2.2 and the corresponding enhancement of friction factor was 3.4 times.

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REFERENCES

  1. Hans, V.S., Saini, R.P., and Saini, J.S., Performance of artificially roughened solar air heaters: a review, Renewable Sustainable Energy Rev., 2009, vol. 13, no. 8, pp. 1854–1869.

    Article  Google Scholar 

  2. Alam, T. and Kim, M.-H., A critical review on artificial roughness provided in rectangular solar air heater duct, Renewable Sustainable Energy Rev., 2017, vol. 69, pp. 387–400.

    Article  Google Scholar 

  3. Prasad, B.N. and Saini, J.S., Effect of artificial roughness on heat transfer and friction factor in a solar air heater, Solar Energy, 1988, vol. 41, no. 6, pp. 555–560.

    Article  Google Scholar 

  4. Gupta, D., Solanki, S.C., and Saini, J.S., Thermohydraulic performance of solar air heaters with roughened absorber plates, Solar Energy, 1997, vol. 61, no. 1, pp. 33–42.

    Article  Google Scholar 

  5. Ebrahim, M.A.-M., Saini J.S., and Solanki S.C., Heat transfer and friction in solar air heater duct with V-shaped rib roughness on absorber plate, Int. J. Heat Mass Transfer, 2002, vol. 45, no. 16, pp. 3383–3396.

    Article  Google Scholar 

  6. Singh, S., Chander, S., and Saini, J.S., Thermo-hydraulic performance due to relative roughness pitch in V-down rib with gap in solar air heater duct: comparison with similar rib roughness geometries, Renewable Sustainable Energy Rev., 2015, vol. 43, pp. 1159–1166.

    Article  Google Scholar 

  7. Saini, S.K. and Saini, R.P., Development of correlations for Nusselt number and friction factor for solar air heater with roughened duct having arc-shaped wire as artificial roughness, Solar Energy, 2008, vol. 82, no. 12, pp. 1118–1130.

    Article  Google Scholar 

  8. Pandey, N., Bajpai, V., and Varun, Experimental investigation of heat transfer augmentation using multiple arcs with gap on absorber plate of solar air heater, Solar Energy, 2016, vol. 134, pp. 314–326.

    Article  Google Scholar 

  9. Aharwal, K.R., Gandhi, B.K., and Saini, J.S., Experimental investigation on heat-transfer enhancement due to a gap in an inclined continuous rib arrangement in a rectangular duct of solar air heater, Renewable Energy, 2008, vol. 33, no. 4, pp. 585–596.

    Article  Google Scholar 

  10. Hans, V.S., Saini, R.P., and Saini, J.S., Heat transfer and friction factor correlations for a solar air heater duct roughened artificially with multiple v-ribs, Solar Energy, 2010, vol. 84, no. 6, pp. 898–911.

    Article  Google Scholar 

  11. Kumar, K., Prajapati, D.R., and Samir, S., Heat transfer and friction factor correlations development for solar air heater duct artificially roughened with S shape ribs, Exp. Therm. Fluid Sci., 2017, vol. 82, pp. 249–261.

    Article  Google Scholar 

  12. Hans, V.S., Gill, R.S., and Singh, S., Heat transfer and friction factor correlations for a solar air heater duct roughened artificially with broken arc ribs, Exp. Therm. Fluid Sci., 2017, vol. 80, pp. 77–89.

    Article  Google Scholar 

  13. Yadav, A.S. and Bhagoria, J.L., A CFD (computational fluid dynamics) based heat transfer and fluid flow analysis of a solar air heater provided with circular transverse wire rib roughness on the absorber plate, Energy, 2013, vol. 55, pp. 1127–1142.

    Article  Google Scholar 

  14. Yadav, A.S. and Bhagoria, J.L., A numerical investigation of square sectioned transverse rib roughened solar air heater, Int. J. Therm. Sci., 2014, vol. 79, pp. 111–131.

    Article  Google Scholar 

  15. Yadav, A.S. and Bhagoria, J.L., A CFD based thermo-hydraulic performance analysis of an artificially roughened solar air heater having equilateral triangular sectioned rib roughness on the absorber plate, Int. J. Heat Mass Transfer, 2014, vol. 70, pp. 1016–1039.

    Article  Google Scholar 

  16. Jin, D., Zhang, M., Wang, P., and Xu, S., Numerical investigation of heat transfer and fluid flow in a solar air heater duct with multi V-shaped ribs on the absorber plate, Energy, 2015, vol. 89, pp. 178–190.

    Article  Google Scholar 

  17. Gawande, V.B., Dhoble, A.S., Zodpe, D.B., and Chamoli, S., Experimental and CFD investigation of convection heat transfer in solar air heater with reverse L-shaped ribs, Solar Energy, 2016, vol. 131, pp. 275–295.

    Article  Google Scholar 

  18. Singh, I. and Singh, S., Cfd analysis of solar air heater duct having square wave profiled transverse ribs as roughness elements, Solar Energy, 2018, vol. 162, pp. 442–453.

    Article  Google Scholar 

  19. Gupta, D., Solanki, S.C., and Saini, J.S., Heat and fluid flow in rectangular solar air heater ducts having transverse rib roughness on absorber plates, Solar Energy, 1993, vol. 51, no. 1, pp. 31–37.

    Article  Google Scholar 

  20. Webb, R.L. and Eckert, E.R.G., Application of rough surfaces to heat exchanger design, Int. J. Heat Mass Transf., 1972, vol. 15, pp. 1647–1658.

    Article  Google Scholar 

  21. Singh, I. and Singh, S., A review of artificial roughness geometries employed in solar air heaters, Renewable Sustainable Energy Rev., 2018, vol. 92, pp. 405–425.

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Mechanical Engineering, CT University, Ludhiana, India

    Inderjeet Singh

  2. School of Renewable Energy Engineering, Punjab Agricultural University, Ludhiana, India

    Sukhmeet Singh

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  1. Inderjeet Singh
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  2. Sukhmeet Singh
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Correspondence to Inderjeet Singh.

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Singh, I., Singh, S. Numerical Investigation of Thermo-Hydraulic Characteristics of Non-Uniform Transverse Rib Roughened Solar Heater. Appl. Sol. Energy 54, 421–427 (2018). https://doi.org/10.3103/S0003701X18060130

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  • DOI: https://doi.org/10.3103/S0003701X18060130

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