IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v173y2021icp896-912.html
   My bibliography  Save this article

A comprehensive parametric investigation of hemispherical cavities on thermal performance and flow-dynamics in the triangular-duct solar-assisted air-heater

Author

Listed:
  • Goel, Varun
  • Kumar, Rajneesh
  • Bhattacharyya, Suvanjan
  • Tyagi, V.V.
  • Abusorrah, Abdullah M.

Abstract

The thermal energy available in the form of solar radiation is collected and converted into heat with the help of a solar air heater. The flow and thermal characteristics change significantly with the cross-sectional shape of the flow passage. The effect of hemispherical dimple-cavities that were employed over the heat-collector plate has been analyzed based on the flow and heat characteristics of a triangular solar air heater. A comprehensive investigation of roughness and flow parameters is carried out experimentally, while the flow dynamics over the heat-collector plate are predicted using commercial software (ANSYS). The remarkable results are observed in terms of Nusselt number and friction factor with the use of dimples over the heat-collector plate in the solar air heater. The higher heat transfer is noticed at the training edge in comparison to the leading edge of the dimple. The best augmentation in Nusselt number obtained is of the order of 5.33 that is observed for transverse-pitch ratio, longitudinal-pitch ratio and relative dimple depth values of 11, 11 and 0.039 respectively, at Reynolds number value of 2160. A close fit curve was obtained between the values obtained from the developed correlation and experimental values with a maximum error of 6.61% and 7.03%, respectively.

Suggested Citation

  • Goel, Varun & Kumar, Rajneesh & Bhattacharyya, Suvanjan & Tyagi, V.V. & Abusorrah, Abdullah M., 2021. "A comprehensive parametric investigation of hemispherical cavities on thermal performance and flow-dynamics in the triangular-duct solar-assisted air-heater," Renewable Energy, Elsevier, vol. 173(C), pages 896-912.
    • Handle: RePEc:eee:renene:v:173:y:2021:i:c:p:896-912
    DOI: 10.1016/j.renene.2021.04.006
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148121005188
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2021.04.006?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Balaras, Constantinos A., 1990. "A review of augmentation techniques for heat transfer surfaces in single-phase heat exchangers," Energy, Elsevier, vol. 15(10), pages 899-906.
    2. Leung, C. W. & Wong, T. T. & Probert, S. D., 2001. "Enhanced forced-convection from ribbed or machine-roughened inner surfaces within triangular ducts," Applied Energy, Elsevier, vol. 69(2), pages 87-99, June.
    3. Hwang, Sang Dong & Kwon, Hyun Goo & Cho, Hyung Hee, 2010. "Local heat transfer and thermal performance on periodically dimple-protrusion patterned walls for compact heat exchangers," Energy, Elsevier, vol. 35(12), pages 5357-5364.
    4. Kumar, Rajneesh & Varun, & Kumar, Anoop, 2016. "Thermal and fluid dynamic characteristics of flow through triangular cross-sectional duct: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 61(C), pages 123-140.
    5. Varun & Siddhartha, 2010. "Thermal performance optimization of a flat plate solar air heater using genetic algorithm," Applied Energy, Elsevier, vol. 87(5), pages 1793-1799, May.
    6. Dezan, Daniel J. & Rocha, André D. & Ferreira, Wallace G., 2020. "Parametric sensitivity analysis and optimisation of a solar air heater with multiple rows of longitudinal vortex generators," Applied Energy, Elsevier, vol. 263(C).
    7. Kumar, Rajneesh & Kumar, Anoop & Goel, Varun, 2019. "Performance improvement and development of correlation for friction factor and heat transfer using computational fluid dynamics for ribbed triangular duct solar air heater," Renewable Energy, Elsevier, vol. 131(C), pages 788-799.
    8. Kumar, Anil & Saini, R.P. & Saini, J.S., 2012. "Heat and fluid flow characteristics of roughened solar air heater ducts – A review," Renewable Energy, Elsevier, vol. 47(C), pages 77-94.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. 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.
    2. Kumar, Rajneesh, 2024. "Improved solar-thermal heat exchanger for space heating with surface roughness: A numerical parametric investigation and its optimization," Renewable Energy, Elsevier, vol. 226(C).
    3. Muneerah Al Nuwairan & Basma Souayeh, 2021. "Augmentation of Heat Transfer in a Circular Channel with Inline and Staggered Baffles," Energies, MDPI, vol. 14(24), pages 1-20, December.
    4. Kumar R, Reji & Pandey, A.K. & Samykano, M. & Aljafari, Belqasem & Ma, Zhenjun & Bhattacharyya, Suvanjan & Goel, Varun & Ali, Imtiaz & Kothari, Richa & Tyagi, V.V., 2022. "Phase change materials integrated solar desalination system: An innovative approach for sustainable and clean water production and storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    5. Kumar, Rajneesh & Sharma, Akshay & Goel, Varun & Sharma, Rajesh & Sethi, Muneesh & Tyagi, V.V., 2023. "An experimental investigation of new roughness patterns (dimples with alternative protrusions) for the performance enhancement of solar air heater," Renewable Energy, Elsevier, vol. 211(C), pages 964-974.
    6. 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.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. 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).
    2. Kumar, Rajneesh & Goel, Varun, 2021. "Unconventional solar air heater with triangular flow-passage: A CFD based comparative performance assessment of different cross-sectional rib-roughnesses," Renewable Energy, Elsevier, vol. 172(C), pages 1267-1278.
    3. António Araújo, 2020. "Thermo-Hydraulic Performance of Solar Air Collectors with Artificially Roughened Absorbers: A Comparative Review of Semi-Empirical Models," Energies, MDPI, vol. 13(14), pages 1-33, July.
    4. Kumar, Rajneesh & Kumar, Anoop & Goel, Varun, 2019. "Performance improvement and development of correlation for friction factor and heat transfer using computational fluid dynamics for ribbed triangular duct solar air heater," Renewable Energy, Elsevier, vol. 131(C), pages 788-799.
    5. Kumar, Rajneesh & Sharma, Akshay & Goel, Varun & Sharma, Rajesh & Sethi, Muneesh & Tyagi, V.V., 2023. "An experimental investigation of new roughness patterns (dimples with alternative protrusions) for the performance enhancement of solar air heater," Renewable Energy, Elsevier, vol. 211(C), pages 964-974.
    6. 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.
    7. Sivakandhan, C. & Arjunan, T.V. & Matheswaran, M.M., 2020. "Thermohydraulic performance enhancement of a new hybrid duct solar air heater with inclined rib roughness," Renewable Energy, Elsevier, vol. 147(P1), pages 2345-2357.
    8. 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).
    9. 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.
    10. Kumar, Rajneesh & Goel, Varun & Kumar, Anoop, 2018. "Investigation of heat transfer augmentation and friction factor in triangular duct solar air heater due to forward facing chamfered rectangular ribs: A CFD based analysis," Renewable Energy, Elsevier, vol. 115(C), pages 824-835.
    11. Rosas-Flores, Jorge Alberto & Rosas-Flores, Dionicio & Fernández Zayas, José Luis, 2016. "Potential energy saving in urban and rural households of Mexico by use of solar water heaters, using geographical information system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 243-252.
    12. Alam, Tabish & Kim, Man-Hoe, 2017. "Performance improvement of double-pass solar air heater – A state of art of review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 79(C), pages 779-793.
    13. Hassan, Hamdy & Abo-Elfadl, Saleh & El-Dosoky, M.F., 2020. "An experimental investigation of the performance of new design of solar air heater (tubular)," Renewable Energy, Elsevier, vol. 151(C), pages 1055-1066.
    14. Akansu, Selahaddin Orhan, 2006. "Heat transfers and pressure drops for porous-ring turbulators in a circular pipe," Applied Energy, Elsevier, vol. 83(3), pages 280-298, March.
    15. Singh Yadav, Anil & Kumar Thapak, Manish, 2014. "Artificially roughened solar air heater: Experimental investigations," Renewable and Sustainable Energy Reviews, Elsevier, vol. 36(C), pages 370-411.
    16. Choi, Seok Min & Kwon, Hyun Goo & Kim, Taehyun & Moon, Hee Koo & Cho, Hyung Hee, 2022. "Active cooling of photovoltaic (PV) cell by acoustic excitation in single-dimpled internal channel," Applied Energy, Elsevier, vol. 309(C).
    17. Hu, Mingke & Zhao, Bin & Suhendri, & Cao, Jingyu & Wang, Qiliang & Riffat, Saffa & Su, Yuehong & Pei, Gang, 2022. "Extending the operation of a solar air collector to night-time by integrating radiative sky cooling: A comparative experimental study," Energy, Elsevier, vol. 251(C).
    18. Rashidi, Saman & Hormozi, Faramarz & Sundén, Bengt & Mahian, Omid, 2019. "Energy saving in thermal energy systems using dimpled surface technology – A review on mechanisms and applications," Applied Energy, Elsevier, vol. 250(C), pages 1491-1547.
    19. Siddhartha, & Sharma, Naveen & Varun,, 2012. "A particle swarm optimization algorithm for optimization of thermal performance of a smooth flat plate solar air heater," Energy, Elsevier, vol. 38(1), pages 406-413.
    20. 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).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:173:y:2021:i:c:p:896-912. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.