Journal of Japan Society for Safety Engineering
Online ISSN : 2424-0656
Print ISSN : 0570-4480
ISSN-L : 0570-4480
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Volume 35, Issue 4
JOURNAL OF JAPAN SOCIETY FOR SAFETY ENGINEERING_1996_4
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REVIEW
  • A Study on Gas－phase Radicals Produced in the Fires
    Koji Furusawa, Yoshiaki Akutsu, Mitsuru Arai and Masamitsu Tamura
    1996 Volume 35 Issue 4 Pages 283-288
    Published: August 15, 1996
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18943/safety.35.4_283
    JOURNAL FREE ACCESS
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    In　the　combustion　smoke of　various　combustibles，there　are　highly　reactive　and　apparently　long－lived　gas phase radicals、In　order　to　obtaill　some　information　on　the　possibility　for　the　production　of　such　radicals　in　the　actual　fires， we　attempted　to　detect　gas－phase　radicals　in　the　combustion　smoke　from　full- scale fire　experiments．In　consequence，we　observed　oxygen－centered　gas phase　radicals．This　fact　shows　a　possibility　for　the　production　of　highly　reactive and　apparently　long lived　gas-phase　radicals　in　the　actuaI fires． In　addition，we　examined　the　production　of　gas－phase　radicals　from　the　combustion　smoke　of　some　typical polymers　to　clarify　the　infruence　of　combustion　conditions　on　the　production　of　the　gas-phase　radicals，As　a　result，as temperature　and　atmospheric　oxygen　concentration　increased，amounts　of　produced　gas phase　radicals　increased　at first　and　then　decreased．And　the　atmospheric　oxygen　concentration　remarkably　infiuenced　the　production　of　the　gas －phase　radicals　in　the　case　of　the　combustion　of　compounds　not　containing　illtramolecular　oxygen，It　suggests　that　the oxygen　colltained　in　the　gas－phase　radicals　should　be　derived　from　both　of　the　atmospheric　and　intramolecular　oxygen．

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