A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Heat Flux through Naturally Ventilated Building in Malaysian Climate
Roofs and walls are the main media for heat transfer for typical Malaysian buildings. In order to estimate the duration of uncomfortable periods, the environmental temperature of a building was determined over a period of time. A study of heat flux through a naturally ventilated was conducted by simulation. This study focused on heat transfer through the roof, ceiling and vertical walls. A Thermal Analysis Software was used for the modeling and analyses. A virtual test building model dimension 4m x 4m x 3m was created using conventional construction parameters for roof, ceiling, windows, door, walls and floor which meet the minimum requirement in Malaysian Standards. The results show that heat rate flux mostly peak at east wall before 12:00 hrs and west wall after 12:00 hrs. The heat rate flux through the roof is higher than that through the ceiling during daytime but lower at night as roof was the surface of most exposed to solar radiation. The proportion of heat through roof was 87% by radiation, 11% by convection and 2% by conduction. 97% of heat was transferred by radiation and 3% by conduction for ceiling and heat through wall was 88% by radiation, 8% by convection and 4% by conduction respectively.
Heat Flux through Naturally Ventilated Building in Malaysian Climate
Roofs and walls are the main media for heat transfer for typical Malaysian buildings. In order to estimate the duration of uncomfortable periods, the environmental temperature of a building was determined over a period of time. A study of heat flux through a naturally ventilated was conducted by simulation. This study focused on heat transfer through the roof, ceiling and vertical walls. A Thermal Analysis Software was used for the modeling and analyses. A virtual test building model dimension 4m x 4m x 3m was created using conventional construction parameters for roof, ceiling, windows, door, walls and floor which meet the minimum requirement in Malaysian Standards. The results show that heat rate flux mostly peak at east wall before 12:00 hrs and west wall after 12:00 hrs. The heat rate flux through the roof is higher than that through the ceiling during daytime but lower at night as roof was the surface of most exposed to solar radiation. The proportion of heat through roof was 87% by radiation, 11% by convection and 2% by conduction. 97% of heat was transferred by radiation and 3% by conduction for ceiling and heat through wall was 88% by radiation, 8% by convection and 4% by conduction respectively.
Heat Flux through Naturally Ventilated Building in Malaysian Climate
Applied Mechanics and Materials ; 204-208 ; 4384-4388
2012-10-26
5 pages
Article (Journal)
Electronic Resource
English
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