Mixed mode ventilation system is another focus we are looking at. This mode offer the potential of energy saving by relieving some of the spaces off air conditioning, such as lobby and corridor. However, care must be taken with regards to the mixing of external humidity with the air in air conditioned spaces, which might lead to higher energy consumption by the AC system. Another interesting study is to understand how people perceived comfort in mixed mode buildings. Our team led by Dr Mohamad Fakri Zaky is conducting a survey on the thermal comfort and comfort perception of people staying in mixed mode hotels. Recently the team went to Penang from 11-14th April 2015 to conduct a thermal comfort survey of the visitors and workers.
Daylight factor is a measure of how well your building admit daylight to its interior. It is expressed as the percentage of light level of a particular point inside your building over the light level outside under unobstructed overcast sky.
Acceptable values for a good design is between 1% to 3%. anything below this is considered underlit and would require the assisstance of artificial lighting for task like reading. Have it over 5% and you run the risk of having glare or even heat problem. The photo below is an example of a daylighting strategy we did for an office building. By jacking up the roof for the central open office space, a horizontal band of 450mm window strip were able to provide the interior an average distribution of daylight factor of 2.5%. Note that the internal partition of the adjacent rooms are of full height clear glass, and from the this space one can have direct view towards outside. This also helps in promoting good daylight factor. The fact that the furnishings and wall color are white further enhance the daylight dsitribution, WElcome to the Environmental Design Group Blog. Here you can find articles and issues in the built environment which will help our understanding of green development, sustainability and the like |
AuthorThese are articles published to discuss certain topics and issues pertaining to our services Archives
June 2017
Categories |