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Experimental study on the thermal comfort in the room equipped with a radiant floor heating system exposed to direct solar radiation

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  • Li, Tianying
  • Merabtine, Abdelatif
  • Lachi, Mohammed
  • Martaj, Nadia
  • Bennacer, Rachid

Abstract

In buildings with highly glazed facades, the main drawback of radiant floors is the overheating problem when exposed to direct solar radiation. Combined with local climate data from Troyes, an experimental investigation was performed under various exposure duration 2, 4, and 6 h with different solar intensity scenarios that were experimentally realized by a heating film. Indoor air temperatures and floor surface temperature were measured. Obtained results showed that the maximum floor surface temperatures all exceeded the limitation of 29 °C during the sunshine durations. When the sun patch was applied on the floor, the building type changed from category A to category B in terms of the vertical air temperature difference. To sum up, the sun patch indeed gave rise to floor overheating problems in the case of the existing control system, and the case of 6h sunshine duration with an intensity of 718 W/m2 would lead to the worst living conditions taking all factors consideration. The findings and insights of this study will provide an experimental database for designers and engineers.

Suggested Citation

  • Li, Tianying & Merabtine, Abdelatif & Lachi, Mohammed & Martaj, Nadia & Bennacer, Rachid, 2021. "Experimental study on the thermal comfort in the room equipped with a radiant floor heating system exposed to direct solar radiation," Energy, Elsevier, vol. 230(C).
    • Handle: RePEc:eee:energy:v:230:y:2021:i:c:s0360544221010483
    DOI: 10.1016/j.energy.2021.120800
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    References listed on IDEAS

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    1. Guo, Hongshan & Aviv, Dorit & Loyola, Mauricio & Teitelbaum, Eric & Houchois, Nicholas & Meggers, Forrest, 2020. "On the understanding of the mean radiant temperature within both the indoor and outdoor environment, a critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 117(C).
    2. Gwerder, M. & Tödtli, J. & Lehmann, B. & Dorer, V. & Güntensperger, W. & Renggli, F., 2009. "Control of thermally activated building systems (TABS) in intermittent operation with pulse width modulation," Applied Energy, Elsevier, vol. 86(9), pages 1606-1616, September.
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    1. Yang, Zixu & Sun, Hongli & Wang, Baolong & Xiao, Hansong & Dong, Xian & Shi, Wenxing & Lin, Borong, 2022. "Experimental investigation on indoor environment and energy performance of convective terminals," Energy, Elsevier, vol. 251(C).
    2. Xie, Xing & Xia, Fei & Zhao, Yu-qian & Xu, Bin & Wang, Yang-liang & Pei, Gang, 2022. "Parametric study on the effect of radiant heating system on indoor thermal comfort with/without external thermal disturbance," Energy, Elsevier, vol. 249(C).

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