Natural ventilation approached on circular courtyard building in hot humid climate
One of the building designs that can provide better thermal condition using natural ventilation and better shading performances is courtyard type building. However, the effectiveness of the natural ventilation and shading performance is determined by prevailing outdoor conditions in the microclimate...
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| Format: | Conference or Workshop Item |
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| Online Access: | http://eprints.uthm.edu.my/2539/ http://eprints.uthm.edu.my/2539/1/Natural_Ventilation_Approached_on_Circular_Courtyard.pdf |
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| Summary: | One of the building designs that can provide better thermal condition using natural ventilation and
better shading performances is courtyard type building. However, the effectiveness of the natural
ventilation and shading performance is determined by prevailing outdoor conditions in the microclimate
and the building design itself. This study investigates the high rise circular courtyard building
performances in the aspect of thermal comfort through naturally ventilated approach. This study was
conducted at UTHM library located at Parit Raja, Batu Pahat, Johor, which has circular courtyard
geometry design with the height of 5 storeys. An objective measurement has been done on several room
conditions by using MetOne E-Sample station, portable 4 in 1 meter kit and Fluke infrared thermometer
to obtain the parameters of air temperature, relative humidity, wind speed and wall, and floor
temperature surfaces. After conducting the measurement for each condition, Predicted Mean Vote
(PMV) and Predicted Percentage of Dissatisfaction (PPD) have been calculated by using ASHRAE
Thermal Comfort Program V1.0. The result shows that courtyard can provide lower air temperature
condition compared to the outside ambient. However, in term of applying natural ventilation strategies,
only night time condition achieved the comfort zone of ISO 7730. The worst room condition was by
using combination of natural ventilation during day but not at night. |
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