The impact of internal gains on thermal stratification for public buildings

The indoor temperature in public buildings varies according to its internal loads scenario. In fact, this building typology in temperate climates is generally non-air conditioned and naturally ventilated. In order to improve indoor thermal conditions with appropriate solutions, it is necessary to st...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-09, Vol.609 (4), p.42090
Main Authors: Laghmich, Nisrine, Romani, Zaid, Lapisa, Remon, Draoui, Abdeslam
Format: Article
Language:English
Subjects:
Air conditioners
Mathematical models
Public buildings
Temperature
Temperature profiles
Thermal comfort
Thermal stratification
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Summary:The indoor temperature in public buildings varies according to its internal loads scenario. In fact, this building typology in temperate climates is generally non-air conditioned and naturally ventilated. In order to improve indoor thermal conditions with appropriate solutions, it is necessary to study the vertical temperature profile. The main objective of this study is to show the impact of thermal stratification on thermal comfort of public buildings. The thermo-airodynamic modeling using TRNSYS(C) and CONTAM(C) have been performed in this numerical simulation study. The indoor air volume is vertically subdivided into several levels to evaluate the evolution of temperature profile taking into account the different inside-outside air exchange and air coupling between sub-zones. This study is performed in the city of Morocco that represents Mediterranean climate region with a moderate temperature. The effect of several parameters, such as indoor occupation pattern, internal lighting, sub-zones air exchange and vertical thermal stratification are studied. Numerical simulation results show that thermal stratification of buildings affects the occupant's comfort level
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/609/4/042090