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AuthorNagham, Ismail
AuthorOuahrani, Djamel
Available date2023-09-28T09:20:30Z
Publication Date2022-01-12
Publication NameEnergy
Identifierhttp://dx.doi.org/10.1016/j.energy.2022.123185
CitationIsmail, N., & Ouahrani, D. (2022). Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates. energy, 244, 123185.
ISSN0360-5442
URIhttps://www.sciencedirect.com/science/article/pii/S0360544222000883
URIhttp://hdl.handle.net/10576/48048
AbstractThe building industry challenges have led researchers to develop a personalized conditioning system aiming to create a microclimate comfort zone around the occupant. Radiant cooling become prevalent due to their potential in affording both comfort and energy saving. Consequently, this study investigates the performance of a personalized cooling radiant cubicle (PCRC) combined with a conventional heating, ventilation, and air-conditioning (HVAC) system in an office room in hot climates. PCRC performance is assessed by introducing a novel model that combines computational fluid dynamics (CFD) and mathematical simulation based on two criteria: the ability in creating a thermal comfort zone near the occupant at high set-point temperatures and the economic feasibility in terms of energy savings and pay-back period. The results demonstrate that PCRC (i) maintains a comfortable personal thermal environment in the desired zone (ii) reduces the thermal asymmetry (iii) improves the corresponding predicted percentage of dissatisfied (PPD) index. When compared to published experiment, it is shown that the developed model is valid with a maximum relative error of 5% underlining its accuracy and eliminating the need of a full-physics based model. Moreover, implementing PCRC reduces cooling energy by 18% compared to conventional system with a payback period between 6 and 7 years.
SponsorThis work was financially supported by Qatar University.
Languageen
PublisherElsevier
SubjectRadiant cooling
Personal thermal comfort
CFD
Mathematical model
Cooling energy
Energy savings
TitleModelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates
TypeArticle
Volume Number244
Open Access user License http://creativecommons.org/licenses/by/4.0/
ESSN1873-6785


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