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Numerical optimization of solar air heaters having different types of roughness shapes on the heated plate – Technical note

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  • Kumar, Anil
  • Kim, Man-Hoe

Abstract

This paper presents numerical optimization results for the thermal and effective efficiencies of a solar air heater duct as a function of various roughness geometries on the heated plate. A methodology for the prediction of thermal and effective efficiency of the SAH has been developed on the basis of heat transfer and friction factor correlations. Among the roughness geometries considered, the discrete multiple V-shaped rib results in the best thermal and effective efficiencies over the entire range of design conditions. This work also addresses the scope for future research in the area of roughened SAH ducts and will be helpful for researchers investigating new artificial shapes for SAH ducts to enhance the heat transfer.

Suggested Citation

  • Kumar, Anil & Kim, Man-Hoe, 2014. "Numerical optimization of solar air heaters having different types of roughness shapes on the heated plate – Technical note," Energy, Elsevier, vol. 72(C), pages 731-738.
    • Handle: RePEc:eee:energy:v:72:y:2014:i:c:p:731-738
    DOI: 10.1016/j.energy.2014.05.100
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    References listed on IDEAS

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    1. Singh, Sukhmeet & Chander, Subhash & Saini, J.S., 2011. "Heat transfer and friction factor correlations of solar air heater ducts artificially roughened with discrete V-down ribs," Energy, Elsevier, vol. 36(8), pages 5053-5064.
    2. Kumar, Anil & Saini, R.P. & Saini, J.S., 2013. "Development of correlations for Nusselt number and friction factor for solar air heater with roughened duct having multi v-shaped with gap rib as artificial roughness," Renewable Energy, Elsevier, vol. 58(C), pages 151-163.
    3. Bhagoria, J.L & Saini, J.S & Solanki, S.C, 2002. "Heat transfer coefficient and friction factor correlations for rectangular solar air heater duct having transverse wedge shaped rib roughness on the absorber plate," Renewable Energy, Elsevier, vol. 25(3), pages 341-369.
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    Citations

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    Cited by:

    1. Jin, Dongxu & Quan, Shenglin & Zuo, Jianguo & Xu, Shiming, 2019. "Numerical investigation of heat transfer enhancement in a solar air heater roughened by multiple V-shaped ribs," Renewable Energy, Elsevier, vol. 134(C), pages 78-88.
    2. Anil Kumar & Man-Hoe Kim, 2016. "Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles," Energies, MDPI, vol. 9(7), pages 1-18, July.
    3. Jin, Dongxu & Zhang, Manman & Wang, Ping & Xu, Shasha, 2015. "Numerical investigation of heat transfer and fluid flow in a solar air heater duct with multi V-shaped ribs on the absorber plate," Energy, Elsevier, vol. 89(C), pages 178-190.
    4. Kumar, Anil & Kim, Man-Hoe, 2017. "Solar air-heating system with packed-bed energy-storage systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 215-227.
    5. Kumar, Anil & Kim, Man-Hoe, 2016. "Thermohydraulic performance of rectangular ducts with different multiple V-rib roughness shapes: A comprehensive review and comparative study," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 635-652.
    6. Jin, Dongxu & Zuo, Jianguo & Quan, Shenglin & Xu, Shiming & Gao, Hao, 2017. "Thermohydraulic performance of solar air heater with staggered multiple V-shaped ribs on the absorber plate," Energy, Elsevier, vol. 127(C), pages 68-77.
    7. Singh, Satyender & Dhiman, Prashant, 2016. "Thermal performance of double pass packed bed solar air heaters – A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 1010-1031.

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