- Author
-
Kim, A.
|
Liu, Z.
- Title
- Fire Suppression Performance of Water Mist Under Ventilation and Cycling Discharge Conditions.
- Coporate
- National Research Council of Canada, Ottawa, Ontario
- Report
-
NRCC-45383,
- Distribution
- FOR MORE INFORMATION CONTACT: National Research Council of Canada, Institute for Research in Construction, Ottawa, Ontario, K1A 0R6, Telephone (613) 993-2607, Fax: (613) 952-7673, Email: Irc.Client-Services@nrc.ca Website: http://irc.nrc-cnrc.gc.ca/fulltext/nrcc44511/ [FULL DOCUMENT IN PDF]: http://irc.nrc-cnrc.gc.ca/fulltext/nrcc45383/
- Book or Conf
- Water Mist Conference, 2nd Internaitonal. Proceedings. April 10-12, 2002,
Amsterdam, Netherlands,
61-76 p.,
2002
- Keywords
-
water mist
|
fire suppression
|
ventilation
|
test facilities
|
scenarioon
|
fire suppression
- Identifiers
- suppression performance with cycling discharge under foced ventilation; characteristics of the single-fluid and twin-fluid water mist system; summary of full-scale test results under non-ventilaiton (door close); summary of full-scale test results under natural ventilation (door open); test results with continuous and cycling discharge under forced ventilation
- Abstract
- When gaseous agents are used to extinguish fires, ventilation systems in the compartment must be shut down, otherwise the fire protection system can be expected to fail. Recent research [1] showed that water mist fire suppression systems were able to extinguish fires effectively with a definable degree of ventilation, such as with open doors or vents in a compartment, while gaseous agents could not work effectively under such ventilation conditions. In order to systematically investigate the fire suppression performance of water mist systems under ventilation conditions, a series of full-scale fire tests were carried out by the National Research Council of Canada [2]. The fire scenarios used in the tests included small and large pool fires, spray fires and wood crib fires. These fires were placed in different locations within the compartment and some fires were shielded from the direct hit of water mist. The ventilation conditions in the compartment included non-ventilation (door closed), natural ventilation (door opened) and forced ventilation (door opened and an exhaust fan running). Two types of water mist systems (single-fluid and twin-fluid) were used in the tests. Also, the use of cycling discharge mode for the improvement of extinguishing performance of water mist system for ventilated fires was studied [3]. This paper presents the extinguishing performance of two water mist systems under natural and forced ventilation, and the improvement of fire suppression performance by using cycling discharge mode.