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Performance evaluation of a novel solar air heater with arched absorber plate

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  • Singh, Simarpreet

Abstract

The study presents a performance evaluation of a novel solar air heating system with arched absorber plate using turbulators. Simulation work is carried out in ANSYS FLUENT (v16.2) platform with RNG k-ε turbulence model at constant heat flux (500 W m−2), in order to compare the thermal-hydraulic performance of the proposed design for a range of Reynolds number (3800–14000). Performance of the solar air heater is projected in the terms of Nusselt number (Nu), frictional factor (Fr) and thermal-hydraulic performance parameter (THPP). It is observed that the arched absorber plate design increases the air turbulence and vortex generation, which results in reducing laminar sub-layer generation near the surface of the absorber plate. A significant improvement is observed in Nusselt number at high Reynolds Number (above 10000). However, a marginal enhancement is also observed in frictional factor due to providing an extra obstacle along the duct length with arched shaped design in the flow field. It is observed that arched shape design of absorber plate can significantly improve overall performance of the solar air heating system using various turbulators. This study will likewise provide a new direction to the work trend in this area.

Suggested Citation

  • Singh, Simarpreet, 2017. "Performance evaluation of a novel solar air heater with arched absorber plate," Renewable Energy, Elsevier, vol. 114(PB), pages 879-886.
    • Handle: RePEc:eee:renene:v:114:y:2017:i:pb:p:879-886
    DOI: 10.1016/j.renene.2017.07.109
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    References listed on IDEAS

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    10. Bhushan, Brij & Singh, Ranjit, 2010. "A review on methodology of artificial roughness used in duct of solar air heaters," Energy, Elsevier, vol. 35(1), pages 202-212.
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    Cited by:

    1. Ganesh Kumar, P. & Balaji, K. & Sakthivadivel, D. & Vigneswaran, V.S. & Velraj, R. & Kim, Sung Chul, 2021. "Enhancement of heat transfer in a combined solar air heating and water heater system," Energy, Elsevier, vol. 221(C).
    2. Sheikhnejad, Yahya & Gandjalikhan Nassab, Seyed Abdolreza, 2021. "Enhancement of solar chimney performance by passive vortex generator," Renewable Energy, Elsevier, vol. 169(C), pages 437-450.
    3. Poongavanam, Ganesh Kumar & Panchabikesan, Karthik & Leo, Anto Joseph Deeyoko & Ramalingam, Velraj, 2018. "Experimental investigation on heat transfer augmentation of solar air heater using shot blasted V-corrugated absorber plate," Renewable Energy, Elsevier, vol. 127(C), pages 213-229.
    4. Abhishek Kumar Goel & S. N. Singh, 2020. "Influence of fin density on the performance of an impinging jet with fins type solar air heater," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 22(6), pages 5873-5886, August.
    5. Vengadesan, Elumalai & Senthil, Ramalingam, 2020. "A review on recent developments in thermal performance enhancement methods of flat plate solar air collector," Renewable and Sustainable Energy Reviews, Elsevier, vol. 134(C).

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