The Effect of Ceiling Heating and Mechanical Ventilation on Thermal Comfort

Balázs András-Tövissi, László Kajtár and Árpád Nyers
Additional contact information
Balázs András-Tövissi: Department of Building Services and Process Engineering, Budapest University of Technology and Economics, 1111 Műegyetem rkp. 3-9, D122 Budapest, Hungary
László Kajtár: Department of Building Services and Process Engineering, Budapest University of Technology and Economics, 1111 Műegyetem rkp. 3-9, D122 Budapest, Hungary
Árpád Nyers: Faculty of Engineering and Information Technology, University of Pécs, Boszorkány át 2,, 7624 Pécs, Hungary

Energies, 2021, vol. 14, issue 12, 1-15

Abstract: In the case of public buildings with ceiling heating and mechanical ventilation, radiant temperature asymmetry caused by the warm ceiling and draught occur simultaneously. The currently available literature does not offer an exhaustive description of the comfort conditions resulting from such a thermal environment. This research focuses on complementing the available knowledge, using instrumental measurements, as well as subject measurements carried out on 20 individuals. Relying on these measurements, the purpose of the research is to support the understanding of the combined mechanisms of action of the two local discomfort parameters. The main result of this research is that, if the predicted percentage dissatified is less than 6%, the radiant temperature asymmetry is in an interval of 5–15 °C, and the draught rate is 15% or 25%, the actual mean vote and the predicted mean vote values differ significantly, and the actual mean vote is always lower, with a few exceptions. In addition, the research highlights the changes of the actual mean vote caused by raising the draught rate from 15% to 25%, in the presence of radiant temperature asymmetry caused by warm ceilings.

Keywords: thermal comfort; human subject measurement; actual mean vote; draught; radiant thermal asymmetry; local discomfort parameter; combined effect (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/12/3712/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/12/3712/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:12:p:3712-:d:579163

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().