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Title: A study on the identification and quantification of sources of VOCs in 5 air-conditioned Singapore office buildings
Authors: Zuraimi, M.S.
Tham, K.W. 
Sekhar, S.C. 
Keywords: Area-specific emission rates
Building materials
Ventilation systems and occupants and their activities
Issue Date: 2004
Citation: Zuraimi, M.S., Tham, K.W., Sekhar, S.C. (2004). A study on the identification and quantification of sources of VOCs in 5 air-conditioned Singapore office buildings. Building and Environment 39 (2) : 165-177. ScholarBank@NUS Repository.
Abstract: Sources of VOCs were identified and quantified in five tropical air-conditioned office buildings in Singapore. A mass balanced model is applied to determine area-specific emission rates and to apportion the sources of VOCs into 3 broad categories of sources-building materials, ventilation systems and occupants and their activities. The highest contributor of TVOCs comes from the ventilation systems at 39.0%. This was followed by occupants and their activities at 37.3% and finally building materials at 23.7%. Ducted supply and return ventilation design has the lowest VOC area-specific emission rates as compared to buildings employing the open space above the false ceiling as return plenum. The TVOC area-specific emission rates from building materials and ventilation systems decreased from 6 to 12 months. However, some VOCs showed increased emission rates over the same period demonstrating sink effects which resulted in secondary emissions. © 2003 Elsevier Ltd. All rights reserved.
Source Title: Building and Environment
ISSN: 03601323
DOI: 10.1016/j.buildenv.2003.08.013
Appears in Collections:Staff Publications

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