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040 |aCaOODSP|beng|erda|cCaOODSP
0861 |aNR24-50/2020E-PDF
1001 |aKo, Yoon J., |eauthor.
24510|aWater mist systems for protection of mass timber structures - phase 2 residential fire suppression tests / |cauthor(s), Yoon J. Ko, Nour Elsagan and Eric Gibbs.
264 1|a[Ottawa] : |bNational Research Council Canada = Conseil national de recherches Canada, |c2020.
264 4|c©2020
300 |a1 online resource (v, 43 pages) : |billustrations (chiefly colour)
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
500 |aAt head of title: Construction.
500 |a"Report no.: A1-016670.1."
500 |a"Report date: Jul. 30th, 2020."
504 |aIncludes bibliographical references (page 38).
520 |a"As an alternative option to conventional sprinkler system, water mist systems are considered for the protection of timber buildings because they use much less amounts of water compared to sprinkler systems. The effectiveness of high pressure water mist (HPWM) and low pressure water mist (LPWM) systems was investigated in comparison to sprinkler systems for a residential fire scenario involving mass timber structures. The most distinct characteristic of the HPWM and LPWM systems was fine water droplets generated from the nozzles, which demonstrated effective smoke cooling in the room. Although the water spray rate of the HPWM was four times lower than that of the sprinkler system, the water mist systems effectively control the fire and maintained the room tenable. Most systems (HPWM, LPWM and sprinklers) tested in this study did not prevent fire damage on the CLT walls, but the HPWM system with a wide spray angle demonstrated rapid fire suppression and protection of the CLT walls. In all tests, a large water pool formed on the floor, which appeared proportional to the total water spray discharge in each test, and the moisture contents measured on the surface and bottom edges of the CLT panels indicated that water can penetrate into the interface between the floor and the wall in a typical CLT assembly"--Executive summary, page 1.
530 |aIssued also in print format
650 0|aFire sprinklers|xTesting.
650 0|aFire extinction|xEquipment and supplies|xTesting.
650 0|aWooden-frame buildings|xFires and fire prevention.
650 6|aExtincteurs automatiques|xEssais.
650 6|aIncendies|xExtinction|xAppareils et matériel|xEssais.
650 6|aConstructions à ossature de bois|xIncendies et prévention des incendies.
7102 |aNational Research Council Canada, |eissuing body.
7760#|tWater mist systems for protection of mass timber structures : |w(CaOODSP)9.889967
85640|qPDF|s2.79 MB|uhttps://publications.gc.ca/collections/collection_2020/cnrc-nrc/NR24-50-2020-eng.pdf