A simplified method for establishing safe available evacuation time based on a descending smoke layer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F18%3A10239757" target="_blank" >RIV/61989100:27120/18:10239757 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27200/18:10239757

Výsledek na webu

<a href="https://www.researchgate.net/publication/326108950_A_simplified_method_for_establishing_safe_available_evacuation_time_based_on_a_descending_smoke_layer" target="_blank" >https://www.researchgate.net/publication/326108950_A_simplified_method_for_establishing_safe_available_evacuation_time_based_on_a_descending_smoke_layer</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A simplified method for establishing safe available evacuation time based on a descending smoke layer

Popis výsledku v původním jazyce

Keeping the smoke layer at a safe height is one of the most important tenability criteria in assessment of evacuation from buildings. The basis of this approach is an accurate approximation of the fire and smoke plume, which is formed above the fire source. The major variables affecting smoke filling are the fire growth rate and enclosure geometry, i.e. the floor area and height. This paper deals with the implementation of a new method for establishing safe available evacuation time based on the fundamental principles of smoke generation and flow into the national fire safety design standards in the Czech and Slovak Republic. Some of these calculation methods have also been included in fire safety engineering ISO standards. The devised method is based on the t-squared fire growth model and correlations for smoke production and air entrainment into the rising plume of smoke. Subsequently, the proposed method is validated against a wide range of benchmark scenarios in the two-zone fire model CFAST. The paper compares the differences, comments on their causes and evaluates the applicability of the new method in both countries. The proposed method is not only compatible with the national fire safety design standards, but also allows for a more precise assessment of life safety without the need for overly complicated calculations. (C) 2018 University of Zilina. All rights reserved.

Název v anglickém jazyce

A simplified method for establishing safe available evacuation time based on a descending smoke layer

Popis výsledku anglicky

Keeping the smoke layer at a safe height is one of the most important tenability criteria in assessment of evacuation from buildings. The basis of this approach is an accurate approximation of the fire and smoke plume, which is formed above the fire source. The major variables affecting smoke filling are the fire growth rate and enclosure geometry, i.e. the floor area and height. This paper deals with the implementation of a new method for establishing safe available evacuation time based on the fundamental principles of smoke generation and flow into the national fire safety design standards in the Czech and Slovak Republic. Some of these calculation methods have also been included in fire safety engineering ISO standards. The devised method is based on the t-squared fire growth model and correlations for smoke production and air entrainment into the rising plume of smoke. Subsequently, the proposed method is validated against a wide range of benchmark scenarios in the two-zone fire model CFAST. The paper compares the differences, comments on their causes and evaluates the applicability of the new method in both countries. The proposed method is not only compatible with the national fire safety design standards, but also allows for a more precise assessment of life safety without the need for overly complicated calculations. (C) 2018 University of Zilina. All rights reserved.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/VI20162019034" target="_blank" >VI20162019034: Výzkum a vývoj ověřených modelů požáru a evakuace osob a jejich praktická aplikace při posuzování požární bezpečnosti staveb</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Communications

ISSN

1335-4205

e-ISSN

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Svazek periodika

20

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

7

Strana od-do

28-34

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85048744479