Please use this identifier to cite or link to this item:
Title: Positive pressure profiles in drainage stacks - full scale tests
Authors: Wong, ESW
Lau, PWM
Chan, DWT
Zhang, L
Keywords: SARS
ventilation stack
seal lost
pressure profiles
drainage test rigs.
Issue Date: 2008
Source: CIB W062 International Conference on Water Supply and Drainage for Buildings, Hong Kong, 8-10 September 2008 How to cite?
Abstract: After SARS plague in 2003, it is well known that communicable diseases spread fast via the drainage systems in buildings. In Hong Kong, with the flourishing of the economy, building heights are ever increasing. The Building Ordinance for design of drainage system is often interpreted without properly taking into account of the increasing building heights that the sizes of the drainage stacks and ventilation stacks are not adequate in pressure relief. Trap seal lost due to siphonic suction is a well known phenomenon. In Hong Kong, a higher risk of trap seal lost is due to the air pressure profile built up with water discharge flow from heights. This paper illustrates the pressure profiles measured from full scale test rigs and real building. It is important in predicting operation problems and locating air pressure relief devices in drainage stack.
Appears in Collections:Conference Paper

Show full item record

Page view(s)

Last Week
Last month
Checked on Sep 17, 2017

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.