MATEC Web Conf.
Volume 251, 2018VI International Scientific Conference “Integration, Partnership and Innovation in Construction Science and Education” (IPICSE-2018)
|Number of page(s)||8|
|Section||Reliability and Safety in Construction|
|Published online||14 December 2018|
Influence of the place of the expiration of gases from the placement at the fire for critical time of formation of dangerous factors of the fire
Moscow State University of Civil Engineering, Yaroslavskoe shosse, 26, Moscow, 129337, Russia
* Corresponding author: Kiara_lion@mail.ru
In normative documents for definition of time of approach of critical values of dangerous factors of the fire (DFF) use medium-volume characteristics of temperature, concentration of O2 oxygen, toxiferous gases and smoke. The purpose of this work – to show that for calculating time of approach of dangerous factors of the fire it is necessary to consider the place of the expiration of gases and their initial parameters. The expressions received in work can serve for determination of values of the dangerous factors of the fire parameters indoors depending on time, taking into account the place of the expiration of gases and their initial parameters. From the dependences given in work it is visible that differences in time taking into account the place of the expiration for the room of 5000 m3 are made by not less than 30 c with on reaching critical temperature and critical concentration of O2. Especially it should be noted that at change of height of a working zone the time difference increases to 40 c with in both parameters.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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