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Experimental and numerical study of the effect of integrating plus-shaped perforated baffles to solar air collector in drying application

Author

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  • Khanlari, Ataollah
  • Güler, Hande Özge
  • Tuncer, Azim Doğuş
  • Şirin, Ceylin
  • Bilge, Yaşar Can
  • Yılmaz, Yusuf
  • Güngör, Afşin

Abstract

Solar thermal systems like solar water and solar air collectors (SCs) are generally used because of their simple structure and high thermal efficiency. Solar air collectors could be utilized in drying applications because they are easy applicable and economical. In this study, a novel parallel-pass SC with double baffles (PPSCDB), parallel-pass SC with baffles (PPSCB) and parallel-pass SC (PPSC) without baffle have been designed and tested for drying application. Baffles have been manufactured in plus-shaped and perforated to achieve high thermal performance. The performance of solar collectors has been analyzed numerically and experimentally. In addition, a drying chamber has been coupled with solar air collectors. Celery (Apium Graveolens L.) root has been dried as a product and dried samples’ quality has been analyzed experimentally. The experiments have been conducted at 0.009 kg/s and 0.011 kg/s air mass flow rates. According to the experimental findings, average thermal efficiencies of PPSC, PPSCB and PPSCDB are in the range of 62.10–66.32%, 65.72–69.62% and 71.12–75.11%, respectively. The highest instantaneous efficiency was obtained as 84.30% in higher mass flow rate in PPSCDB. Also, maximum deviation between experimental and numerical results was 9.5%.

Suggested Citation

  • Khanlari, Ataollah & Güler, Hande Özge & Tuncer, Azim Doğuş & Şirin, Ceylin & Bilge, Yaşar Can & Yılmaz, Yusuf & Güngör, Afşin, 2020. "Experimental and numerical study of the effect of integrating plus-shaped perforated baffles to solar air collector in drying application," Renewable Energy, Elsevier, vol. 145(C), pages 1677-1692.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:1677-1692
    DOI: 10.1016/j.renene.2019.07.076
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    Citations

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    Cited by:

    1. Tuncer, Azim Doğuş & Khanlari, Ataollah, 2023. "Improving the performance of a triple-flow solar air collector using recyclable aluminum cans as extended heat transfer surfaces: An energetic, exergetic, economic and environmental survey," Energy, Elsevier, vol. 282(C).
    2. Francisco Álvarez-Sánchez & Jassón Flores-Prieto & Octavio García-Valladares, 2021. "Annual Thermal Performance of an Industrial Hybrid Direct–Indirect Solar Air Heating System for Drying Applications in Morelos-México," Energies, MDPI, vol. 14(17), pages 1-20, August.
    3. Fatih Selimefendigil & Ceylin Şirin & Hakan F. Öztop, 2022. "Experimental Performance Analysis of a Solar Desalination System Modified with Natural Dolomite Powder Integrated Latent Heat Thermal Storage Unit," Sustainability, MDPI, vol. 14(5), pages 1-15, February.
    4. Das, Mehmet & Akpinar, Ebru Kavak, 2021. "Investigation of the effects of solar tracking system on performance of the solar air dryer," Renewable Energy, Elsevier, vol. 167(C), pages 907-916.
    5. Khanlari, Ataollah & Tuncer, Azim Doğuş, 2023. "Analysis of an infrared-assisted triple-flow prototype solar drying system with nano-embedded absorber coating: An experimental and numerical study," Renewable Energy, Elsevier, vol. 216(C).
    6. Lakshmi, D.V.N. & Muthukumar, P. & Nayak, Prakash Kumar, 2021. "Experimental investigations on active solar dryers integrated with thermal storage for drying of black pepper," Renewable Energy, Elsevier, vol. 167(C), pages 728-739.
    7. Tuncer, Azim Doğuş & Khanlari, Ataollah & Sözen, Adnan & Gürbüz, Emine Yağız & Şirin, Ceylin & Gungor, Afsin, 2020. "Energy-exergy and enviro-economic survey of solar air heaters with various air channel modifications," Renewable Energy, Elsevier, vol. 160(C), pages 67-85.
    8. Tandel, Hiren U. & Modi, Kalpesh V., 2022. "Experimental assessment of double-pass solar air heater by incorporating perforated baffles and solar water heating system," Renewable Energy, Elsevier, vol. 183(C), pages 385-405.
    9. Afshari, Faraz & Sözen, Adnan & Khanlari, Ataollah & Tuncer, Azim Doğuş & Şirin, Ceylin, 2020. "Effect of turbulator modifications on the thermal performance of cost-effective alternative solar air heater," Renewable Energy, Elsevier, vol. 158(C), pages 297-310.
    10. Gürbüz, Emine Yağız & Şahinkesen, İstemihan & Kusun, Barış & Tuncer, Azim Doğuş & Keçebaş, Ali, 2023. "Enhancing the performance of an unglazed solar air collector using mesh tubes and Fe3O4 nano-enhanced absorber coating," Energy, Elsevier, vol. 277(C).
    11. Ağbulut, Ümit & Ayyıldız, Mustafa & Sarıdemir, Suat, 2020. "Prediction of performance, combustion and emission characteristics for a CI engine at varying injection pressures," Energy, Elsevier, vol. 197(C).
    12. 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).
    13. Kong, Decheng & Wang, Yunfeng & Li, Ming & Liang, Jingkang & Liu, Xianglong & Yin, Gaofei, 2022. "Quality study on different parts of Panax notoginseng root drying with a hybrid drying system powered by a solar photovoltaic/thermal air collector and wind turbine," Energy, Elsevier, vol. 245(C).
    14. Çiftçi, Erdem & Khanlari, Ataollah & Sözen, Adnan & Aytaç, İpek & Tuncer, Azim Doğuş, 2021. "Energy and exergy analysis of a photovoltaic thermal (PVT) system used in solar dryer: A numerical and experimental investigation," Renewable Energy, Elsevier, vol. 180(C), pages 410-423.
    15. Bezbaruah, Parag Jyoti & Das, Rajat Subhra & Sarkar, Bikash Kumar, 2021. "Experimental and numerical analysis of solar air heater accoutered with modified conical vortex generators in a staggered fashion," Renewable Energy, Elsevier, vol. 180(C), pages 109-131.
    16. Khanlari, Ataollah & Sözen, Adnan & Afshari, Faraz & Tuncer, Azim Doğuş, 2021. "Energy-exergy and sustainability analysis of a PV-driven quadruple-flow solar drying system," Renewable Energy, Elsevier, vol. 175(C), pages 1151-1166.

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