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Refroidissement pour le confort thermique et paramètres d’efficacité des plaques de plafond, des systèmes de refroidissement par le sol, des radiateurs assistés par ventilateurs et des ventilo-convecteurs.

Cooling thermal comfort and efficiency parameters of ceiling panels, underfloor cooling, fan-assisted radiators, and fan coil.

Auteurs : VOSA K-V., FERRANTELLI A., KURNITSKI J.

Type d'article : Article de périodique

Résumé

Climate change has brought a compelling need for cooling living spaces to the attention of researchers as well as construction professionals. The problem of overheating enclosures is now exacerbated in traditionally affected areas and is also affecting countries that were previously less prone to the issue. In this paper, we address measurements of thermal comfort and cooling emission efficiency parameters for different devices: ceiling panels, underfloor cooling, fan-assisted radiators, and fan coil. These devices were tested in low and high cooling capacities of up to 40 W/m2 while also featuring heating dummies to imitate internal heat gains. Air temperatures were measured at different heights, allowing to evaluate the thermal stratification with high accuracy. Thermal comfort differences of the tested systems were quantified by measuring both air velocities and operative temperatures at points of occupancy. In summary, the best-performing cooling devices for the studied cooling applications were the ceiling panels and fan radiators, followed by underfloor cooling, with a limitation of stratification. Because of the strong jet, fan coil units did not achieve thermal comfort within the whole occupied zone. The results can be utilized in future studies for cooling emission efficiency and energy consumption analyses of the different cooling devices.

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Pages : 19 p.

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Détails

  • Titre original : Cooling thermal comfort and efficiency parameters of ceiling panels, underfloor cooling, fan-assisted radiators, and fan coil.
  • Identifiant de la fiche : 30029886
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Energies - vol. 15 - n. 11
  • Éditeurs : MDPI
  • Date d'édition : 06/2022
  • DOI : http://dx.doi.org/10.3390/en15114156

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