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

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

Energy, 2021, vol. 230, issue C

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.

Keywords: Floor heating system; Sun patch; Thermal comfort; Overheating; Experiments (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:230:y:2021:i:c:s0360544221010483

DOI: 10.1016/j.energy.2021.120800

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