Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13433
Title: Performance of sprinkler in atria
Authors: Chow, WK 
Issue Date: 1996
Publisher: SAGE Publications
Source: Journal of fire sciences, 1996, v. 14, no. 6, p. 466-488 How to cite?
Journal: Journal of fire sciences 
Abstract: The performance of a sprinkler installed in an atrium roof was evaluated in this paper by considering three points: possibility of activating the sprinkler head, thermal response, and water requirement. Crude analysis using the empirical expressions of the fire plume and the zone model CFAST 2.0 were used to study the possibility of activating the sprinkler head. Smoke spreading out from a fire shop to the atrium was discussed. The software DETACT was used to calculate the activation time for the sprinkler heads of different response time indices installed at different ceiling heights under unsteady t-squared fires. Correlation expressions of the activation time with ceiling height, response time indices of the sprinkler head, fire growth coefficients, and ambient temperature were derived. The water requirement at the atrium floor was discussed by calculating the trajectories of water droplets. Higher flow rate and pressure are required for discharging the same water density at the floor level. Results indicated that installing an ordinary sprinkler system in a high headroom atrium would not be effective in controlling a fire.
URI: http://hdl.handle.net/10397/13433
ISSN: 0734-9041
EISSN: 1530-8049
DOI: 10.1177/073490419601400604
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