Examination of performance of water mist fire suppression systems under ventilation conditions

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TypeArticle
Journal titleJournal of Fire Protection Engineering
Volume11
IssueAugust 3
Pages164193; # of pages: 30
Subjectfire suppression, water mist, ventilation; Water mist
AbstractThis paper describes water mist fire suppression effectiveness under various ventilation conditions. The full-scale fire test series were conducted in an empty enclosure and in a simulated machinery space. Fire scenarios in the tests included small and large pool fires, spray fires and wood crib fires that were placed at different locations within the compartment. The ventilation conditions varied from non-ventilation, natural ventilation to forced ventilation. A single-fluid/high pressure and a twin-fluid/low pressure water mist system were used, respectively, in the tests. The test results showed that water mist suppression effectiveness was dependent on ventilation rates, fire size, type and location in the compartment as well as the characteristics of the water mist system used. During tests, both single- and twin-fluid water mist systems effectively extinguished fires under natural ventilation. Under forced ventilation, however, water mist fire suppression effectiveness was substantially reduced due to the strong mass exchange between the room and its surroundings.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number44676
10207
NPARC number20378996
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Record identifiere224c058-4e1c-4846-a16d-0c16820fafe5
Record created2012-07-24
Record modified2016-05-09
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