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Numerical Simulation of Forced Convective Heat Transfer Coefficients on the Facade of Low-and High-Rise Buildings
Many commercial and institutional buildings use glazed curtain walls from floor to ceiling, however, glazing has very little ability to control heat flow. Previous studies have shown that the thermal resistance of glazing is usually less than other components of a building’s envelope. In order to evaluate building energy consumption accurately knowledge of the convective heat transfer coefficient (CHTC) distribution over the surface of the building is important. In this paper, high-resolution 3D steady reynolds-averaged navier-stokes (RANS) computational fluid dynamics (CFD) simulations of forced convective heat transfer at the windward facade of five buildings with various building heights having 3, 10, 15, 20 and 30 storeys are presented. The influence of building height on CHTC distribution is investigated at different Reynolds numbers ranging from 0.7x106 to 33x106. It was observed that as H increases from 10m to 101m, the surface average-CHTC on the windward façade increases by about 55%. Moreover, a correlation has been developed as function of building height.
Numerical Simulation of Forced Convective Heat Transfer Coefficients on the Facade of Low-and High-Rise Buildings
Many commercial and institutional buildings use glazed curtain walls from floor to ceiling, however, glazing has very little ability to control heat flow. Previous studies have shown that the thermal resistance of glazing is usually less than other components of a building’s envelope. In order to evaluate building energy consumption accurately knowledge of the convective heat transfer coefficient (CHTC) distribution over the surface of the building is important. In this paper, high-resolution 3D steady reynolds-averaged navier-stokes (RANS) computational fluid dynamics (CFD) simulations of forced convective heat transfer at the windward facade of five buildings with various building heights having 3, 10, 15, 20 and 30 storeys are presented. The influence of building height on CHTC distribution is investigated at different Reynolds numbers ranging from 0.7x106 to 33x106. It was observed that as H increases from 10m to 101m, the surface average-CHTC on the windward façade increases by about 55%. Moreover, a correlation has been developed as function of building height.
Numerical Simulation of Forced Convective Heat Transfer Coefficients on the Facade of Low-and High-Rise Buildings
Kahsay, Meseret T. (author) / Bitsuamlak, Girma (author) / Tariku, Fitsum (author)
AEI 2017 ; 2017 ; Oklahoma City, Oklahoma
AEI 2017 ; 266-278
2017-04-06
Conference paper
Electronic Resource
English
| British Library Online Contents | 2009