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A mathematical model of thermal performance of a solar air heater with slats

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  • Ammari, H.D.

Abstract

A mathematical model for computing the thermal performance of a single pass flat-plate solar air collector is presented. Air channels were formed by providing metal slats running along the circulated air passage linking the absorber plate by the bottom one in an endeavor to enhance the thermal efficiency of the solar air collector. A mathematical model, therefore, is developed by which the influence of the addition of the metal slats on the efficiency of the solar collector is studied. A computer code that employs an iterative solution procedure is constructed to solve for the governing energy equations to estimate the mean temperatures of the collector. The effect of volume airflow rate, collector length, and spacing between the absorber and bottom plates on the thermal performance of the present solar air heater was investigated. Furthermore, a numerical comparison of the present design with the most common type of solar air heaters is conducted. The results of the comparison have indicated that better thermal performance was obtained by the modified system.

Suggested Citation

  • Ammari, H.D., 2003. "A mathematical model of thermal performance of a solar air heater with slats," Renewable Energy, Elsevier, vol. 28(10), pages 1597-1615.
    • Handle: RePEc:eee:renene:v:28:y:2003:i:10:p:1597-1615
    DOI: 10.1016/S0960-1481(02)00253-7
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    References listed on IDEAS

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    1. Janjai, S. & Esper, A. & Mühlbauer, W., 2000. "Modelling the performance of a large area plastic solar collector," Renewable Energy, Elsevier, vol. 21(3), pages 363-376.
    2. Saha, Samir Kumar & Mahanta, D.K, 2001. "Thermodynamic optimization of solar flat-plate collector," Renewable Energy, Elsevier, vol. 23(2), pages 181-193.
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    1. Prasad, Jay Shankar & Datta, Aparesh & Mondal, Sirshendu, 2024. "Numerical analysis of a solar air heater with offset transverse ribs placed near the absorber plate," Renewable Energy, Elsevier, vol. 227(C).
    2. 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.
    3. 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.
    4. Saxena, Abhishek & Varun, & El-Sebaii, A.A., 2015. "A thermodynamic review of solar air heaters," Renewable and Sustainable Energy Reviews, Elsevier, vol. 43(C), pages 863-890.
    5. Youcef-Ali, S. & Desmons, J.Y., 2007. "Influence of the aerothermic parameters and the product quantity on the production capacity of an indirect solar dryer," Renewable Energy, Elsevier, vol. 32(3), pages 496-511.
    6. 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.
    7. Vishal Dabra & Avadhesh Yadav, 2020. "Performance analysis and comparison of glazed and unglazed solar air collector," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 22(2), pages 863-881, February.
    8. Farhan, Ammar A. & Issam M.Ali, Aljubury & Ahmed, Hamdi E., 2021. "Energetic and exergetic efficiency analysis of a v-corrugated solar air heater integrated with twisted tape inserts," Renewable Energy, Elsevier, vol. 169(C), pages 1373-1385.
    9. Fudholi, Ahmad & Sopian, Kamaruzzaman, 2019. "A review of solar air flat plate collector for drying application," Renewable and Sustainable Energy Reviews, Elsevier, vol. 102(C), pages 333-345.
    10. Oztop, Hakan F. & Bayrak, Fatih & Hepbasli, Arif, 2013. "Energetic and exergetic aspects of solar air heating (solar collector) systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 21(C), pages 59-83.
    11. Luna, D. & Nadeau, J.-P. & Jannot, Y., 2009. "Solar timber kilns: State of the art and foreseeable developments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(6-7), pages 1446-1455, August.
    12. Youcef-Ali, S. & Desmons, J.Y., 2006. "Numerical and experimental study of a solar equipped with offset rectangular plate fin absorber plate," Renewable Energy, Elsevier, vol. 31(13), pages 2063-2075.
    13. Hernández, Alejandro L. & Quiñonez, José E., 2013. "Analytical models of thermal performance of solar air heaters of double-parallel flow and double-pass counter flow," Renewable Energy, Elsevier, vol. 55(C), pages 380-391.
    14. Tchinda, Réné, 2009. "A review of the mathematical models for predicting solar air heaters systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(8), pages 1734-1759, October.
    15. Naphon, Paisarn, 2005. "On the performance and entropy generation of the double-pass solar air heater with longitudinal fins," Renewable Energy, Elsevier, vol. 30(9), pages 1345-1357.
    16. Hu, Jianjun & Liu, Kaitong & Guo, Meng & Zhang, Guangqiu & Chu, Zhongliang & Wang, Meida, 2019. "Performance improvement of baffle-type solar air collector based on first chamber narrowing," Renewable Energy, Elsevier, vol. 135(C), pages 701-710.
    17. Sergio L. González-González & Ana Tejero-González & Francisco J. Rey-Martínez & Manuel Andrés-Chicote, 2017. "Alternative for Summer Use of Solar Air Heaters in Existing Buildings," Energies, MDPI, vol. 10(7), pages 1-15, July.
    18. Qader, Bootan S. & Supeni, E.E. & Ariffin, M.K.A. & Talib, A.R. Abu, 2019. "RSM approach for modeling and optimization of designing parameters for inclined fins of solar air heater," Renewable Energy, Elsevier, vol. 136(C), pages 48-68.
    19. Yadav, Anil Singh & Bhagoria, J.L., 2013. "Heat transfer and fluid flow analysis of solar air heater: A review of CFD approach," Renewable and Sustainable Energy Reviews, Elsevier, vol. 23(C), pages 60-79.

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