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Numerical investigation of heat transfer and fluid flow in a solar air heater duct with multi V-shaped ribs on the absorber plate

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  • Jin, Dongxu
  • Zhang, Manman
  • Wang, Ping
  • Xu, Shasha

Abstract

A numerical investigation of heat transfer and fluid flow characteristics in a solar air heater duct having multi V-shaped ribs on the absorber plate is presented in this study. Three-dimensional simulations are conducted using the ANSYS FLUENT code and the Renormalization-group k–ε turbulence model. The computations are performed for different rib geometries with a varying spanwise V-rib number, relative rib pitch, relative rib height, and angle of attack, and for different Reynolds numbers. The effects of the rib geometrical parameters on the Nusselt number, friction factor, and flow structure are obtained and analyzed. Clearly, the multi V-shaped ribs greatly enhanced the heat transfer. The maximum value of the thermal performance parameter was found to be 1.93 for the range of parameters investigated. The multi V-shaped ribs generate streamwise helical vortex flows, which promote the fluid mixing between the colder mainstream fluid and the warmer fluid near the absorber wall. In addition, the moving subsidiary vortex structure at the inter-rib region further enhances the local fluid mixing.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:energy:v:89:y:2015:i:c:p:178-190
    DOI: 10.1016/j.energy.2015.07.069
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    Cited by:

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    2. Varun Pratap Singh & Siddharth Jain & Ashish Karn & Ashwani Kumar & Gaurav Dwivedi & Chandan Swaroop Meena & Nitesh Dutt & Aritra Ghosh, 2022. "Recent Developments and Advancements in Solar Air Heaters: A Detailed Review," Sustainability, MDPI, vol. 14(19), pages 1-55, September.
    3. Karmveer & Naveen Kumar Gupta & Tabish Alam & Raffaello Cozzolino & Gino Bella, 2022. "A Descriptive Review to Access the Most Suitable Rib’s Configuration of Roughness for the Maximum Performance of Solar Air Heater," Energies, MDPI, vol. 15(8), pages 1-46, April.
    4. Ameur, Houari, 2015. "Energy efficiency of different impellers in stirred tank reactors," Energy, Elsevier, vol. 93(P2), pages 1980-1988.
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    6. Kumar, Anil & Kumar, Raj & Maithani, Rajesh & Chauhan, Ranchan & Sethi, Muneesh & Kumari, Anita & Kumar, Sushil & Kumar, Sunil, 2017. "Correlation development for Nusselt number and friction factor of a multiple type V-pattern dimpled obstacles solar air passage," Renewable Energy, Elsevier, vol. 109(C), pages 461-479.
    7. Gawande, Vipin B. & Dhoble, A.S. & Zodpe, D.B. & Chamoli, Sunil, 2016. "A review of CFD methodology used in literature for predicting thermo-hydraulic performance of a roughened solar air heater," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 550-605.
    8. Sheikholeslami, M. & Ganji, D.D., 2016. "Heat transfer enhancement in an air to water heat exchanger with discontinuous helical turbulators; experimental and numerical studies," Energy, Elsevier, vol. 116(P1), pages 341-352.
    9. Alam, Tabish & Kim, Man-Hoe, 2016. "Numerical study on thermal hydraulic performance improvement in solar air heater duct with semi ellipse shaped obstacles," Energy, Elsevier, vol. 112(C), pages 588-598.
    10. 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.
    11. 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.
    12. Deo, Narinderpal Singh & Chander, Subhash & Saini, J.S., 2016. "Performance analysis of solar air heater duct roughened with multigap V-down ribs combined with staggered ribs," Renewable Energy, Elsevier, vol. 91(C), pages 484-500.
    13. Nidhul, Kottayat & Kumar, Sachin & Yadav, Ajay Kumar & Anish, S., 2020. "Enhanced thermo-hydraulic performance in a V-ribbed triangular duct solar air heater: CFD and exergy analysis," Energy, Elsevier, vol. 200(C).
    14. Singh, Amritpal & Singh, Sukhmeet, 2017. "CFD investigation on roughness pitch variation in non-uniform cross-section transverse rib roughness on Nusselt number and friction factor characteristics of solar air heater duct," Energy, Elsevier, vol. 128(C), pages 109-127.
    15. Nidhul, Kottayat & Yadav, Ajay Kumar & Anish, S. & Kumar, Sachin, 2021. "Critical review of ribbed solar air heater and performance evaluation of various V-rib configuration," Renewable and Sustainable Energy Reviews, Elsevier, vol. 142(C).
    16. Bensaci, Charaf-Eddine & Moummi, Abdelhafid & Sanchez de la Flor, Francisco J. & Rodriguez Jara, Enrique A. & Rincon-Casado, Alejandro & Ruiz-Pardo, Alvaro, 2020. "Numerical and experimental study of the heat transfer and hydraulic performance of solar air heaters with different baffle positions," Renewable Energy, Elsevier, vol. 155(C), pages 1231-1244.
    17. Nidhul, Kottayat & Yadav, Ajay Kumar & Anish, S. & Arunachala, U.C., 2022. "Thermo-hydraulic and exergetic performance of a cost-effective solar air heater: CFD and experimental study," Renewable Energy, Elsevier, vol. 184(C), pages 627-641.
    18. Dong, Zhimin & Liu, Peng & Xiao, Hui & Liu, Zhichun & Liu, Wei, 2021. "A study on heat transfer enhancement for solar air heaters with ripple surface," Renewable Energy, Elsevier, vol. 172(C), pages 477-487.
    19. Chauhan, Ranchan & Singh, Tej & Tiwari, Avinash & Patnaik, Amar & Thakur, N.S., 2017. "Hybrid entropy – TOPSIS approach for energy performance prioritization in a rectangular channel employing impinging air jets," Energy, Elsevier, vol. 134(C), pages 360-368.
    20. Al-Zahrani, Salman, 2023. "Thermal performance augmentation of solar air heater with curved path," Energy, Elsevier, vol. 284(C).

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