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Thermal radiation role in conjugate heat transfer across a multiple-cavity building block

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  • Antar, Mohamed A.

Abstract

Accurate calculation of the heat transfer rate across building blocks may lead to significant energy savings. Conjugate heat transfer analysis is carried out numerically to compute the heat transfer rate/R-value as the number/layout of air-filled cavities is changed. Conduction heat transfer in the block material and both natural convection and radiation in the cavity were considered. It is found that increasing the number of cavities keeping the block width unchanged decreases the heat flux significantly. Five cavities can fit the building block under investigation without compromising the strength. Furthermore, changing the surface emissivity can increase the R-value substantially so that no insulation would be needed to fill the spaces. Thermal radiation plays a considerable role in the heat transfer process of this application. Through this study, the heat transfer characteristics and the gains in the R-value were quantified for the basic blocks used in the local market. Furthermore, the gains in the R-value were calculated for different number of cavities, for different cavities layouts for the conjugate contribution of conduction, convection and/or radiation across the building block. Results are useful for designers and manufacturers of building blocks for better energy savings of end users.

Suggested Citation

  • Antar, Mohamed A., 2010. "Thermal radiation role in conjugate heat transfer across a multiple-cavity building block," Energy, Elsevier, vol. 35(8), pages 3508-3516.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:8:p:3508-3516
    DOI: 10.1016/j.energy.2010.04.055
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    References listed on IDEAS

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    1. Mahlia, T.M.I. & Iqbal, A., 2010. "Cost benefits analysis and emission reductions of optimum thickness and air gaps for selected insulation materials for building walls in Maldives," Energy, Elsevier, vol. 35(5), pages 2242-2250.
    2. Bilgen, E., 2002. "Natural convection in enclosures with partial partitions," Renewable Energy, Elsevier, vol. 26(2), pages 257-270.
    3. da Silva, A.K. & Lorente, S. & Bejan, A., 2006. "Constructal multi-scale structures for maximal heat transfer density," Energy, Elsevier, vol. 31(5), pages 620-635.
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    5. Xie, Xing & Chen, Xing-ni & Xu, Bin & Fei, Yue & Pei, Gang, 2022. "Study based on “Heat Flux - Energy Saving Pointer”: Exploring why phase change materials is not energy efficient enough on internal wall in cold region," Renewable Energy, Elsevier, vol. 196(C), pages 1308-1324.
    6. Ljuboslav Boskic & Igor Mezic, 2021. "Control-Oriented, Data-Driven Models of Thermal Dynamics," Energies, MDPI, vol. 14(5), pages 1-14, March.
    7. Kočí, Václav & Kočí, Jan & Maděra, Jiří & Černý, Robert, 2016. "Contribution of waste products in single-layer ceramic building envelopes to overall energy savings," Energy, Elsevier, vol. 111(C), pages 947-955.
    8. Yu, Jinghua & Yang, Jian & Xiong, Chao, 2015. "Study of dynamic thermal performance of hollow block ventilated wall," Renewable Energy, Elsevier, vol. 84(C), pages 145-151.
    9. Abdul Mujeebu, Muhammad & Alshamrani, Othman Subhi, 2016. "Prospects of energy conservation and management in buildings – The Saudi Arabian scenario versus global trends," Renewable and Sustainable Energy Reviews, Elsevier, vol. 58(C), pages 1647-1663.
    10. Anandalakshmi, R. & Kaluri, Ram Satish & Basak, Tanmay, 2011. "Heatline based thermal management for natural convection within right-angled porous triangular enclosures with various thermal conditions of walls," Energy, Elsevier, vol. 36(8), pages 4879-4896.
    11. Tsay, Y.L. & Cheng, J.C. & Hong, H.F. & Shih, Z.H., 2011. "Characteristics of heat dissipation from photovoltaic cells on the bottom wall of a horizontal cabinet to ambient natural convective air stream," Energy, Elsevier, vol. 36(7), pages 3959-3967.

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