Study on the Effect of Jet Direction of Compound Air Curtain on Smoke Control

High temperature smoke caused by fire is a major cause of casualties. In order to ensure the safety of personnel, it is very important to control the spread of smoke and enable personnel to quickly withdraw from the fire scene. While traditional hard isolation, such as fire doors, may hinder the saf...

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Autores principales:	Zhiyong Zhou, Yao Lu, Yimeng Cui
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fire smoke prevention compound air curtain jet direction the numerical simulation Technology T
Acceso en línea:	https://doaj.org/article/2dbf64df71e5480886a958b167760006
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spelling	oai:doaj.org-article:2dbf64df71e5480886a958b1677600062021-11-11T15:48:12ZStudy on the Effect of Jet Direction of Compound Air Curtain on Smoke Control10.3390/en142169831996-1073https://doaj.org/article/2dbf64df71e5480886a958b1677600062021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/6983https://doaj.org/toc/1996-1073High temperature smoke caused by fire is a major cause of casualties. In order to ensure the safety of personnel, it is very important to control the spread of smoke and enable personnel to quickly withdraw from the fire scene. While traditional hard isolation, such as fire doors, may hinder the safe evacuation of people, the use of an air curtain as a flexible isolation has received more and more attention from researchers. In this paper, the influence of jet direction of compound air curtain on the smoke control effect was studied, and six working conditions were designed. The temperature and smoke isolation of the compound air curtain were numerically simulated by using ANSYS FLUENT software. The parameters such as temperature, velocity pressure and velocity streamline were analyzed, and the smoke control effects of six different jet directions were discussed. The simulation results were verified by Pyrosim fire simulation software simulation software. The results show that the direction of jet flow has a significant influence on the smoke control effect, and the fire smoke control effect under working conditions 4 and 5 is better. The working condition 5 (both air curtain A and air curtain B have outward jet direction) has the best smoke prevention effect, which is suitable for a situation that is close to the fire source. Working condition 4 (outward direction of air curtain A and inward direction of air curtain B) has the second-best effect of smoke prevention, which is suitable for situations far from the fire source.Zhiyong ZhouYao LuYimeng CuiMDPI AGarticlefire smoke preventioncompound air curtainjet directionthe numerical simulationTechnologyTENEnergies, Vol 14, Iss 6983, p 6983 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fire smoke prevention compound air curtain jet direction the numerical simulation Technology T
spellingShingle	fire smoke prevention compound air curtain jet direction the numerical simulation Technology T Zhiyong Zhou Yao Lu Yimeng Cui Study on the Effect of Jet Direction of Compound Air Curtain on Smoke Control
description	High temperature smoke caused by fire is a major cause of casualties. In order to ensure the safety of personnel, it is very important to control the spread of smoke and enable personnel to quickly withdraw from the fire scene. While traditional hard isolation, such as fire doors, may hinder the safe evacuation of people, the use of an air curtain as a flexible isolation has received more and more attention from researchers. In this paper, the influence of jet direction of compound air curtain on the smoke control effect was studied, and six working conditions were designed. The temperature and smoke isolation of the compound air curtain were numerically simulated by using ANSYS FLUENT software. The parameters such as temperature, velocity pressure and velocity streamline were analyzed, and the smoke control effects of six different jet directions were discussed. The simulation results were verified by Pyrosim fire simulation software simulation software. The results show that the direction of jet flow has a significant influence on the smoke control effect, and the fire smoke control effect under working conditions 4 and 5 is better. The working condition 5 (both air curtain A and air curtain B have outward jet direction) has the best smoke prevention effect, which is suitable for a situation that is close to the fire source. Working condition 4 (outward direction of air curtain A and inward direction of air curtain B) has the second-best effect of smoke prevention, which is suitable for situations far from the fire source.
format	article
author	Zhiyong Zhou Yao Lu Yimeng Cui
author_facet	Zhiyong Zhou Yao Lu Yimeng Cui
author_sort	Zhiyong Zhou
title	Study on the Effect of Jet Direction of Compound Air Curtain on Smoke Control
title_short	Study on the Effect of Jet Direction of Compound Air Curtain on Smoke Control
title_full	Study on the Effect of Jet Direction of Compound Air Curtain on Smoke Control
title_fullStr	Study on the Effect of Jet Direction of Compound Air Curtain on Smoke Control
title_full_unstemmed	Study on the Effect of Jet Direction of Compound Air Curtain on Smoke Control
title_sort	study on the effect of jet direction of compound air curtain on smoke control
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/2dbf64df71e5480886a958b167760006
work_keys_str_mv	AT zhiyongzhou studyontheeffectofjetdirectionofcompoundaircurtainonsmokecontrol AT yaolu studyontheeffectofjetdirectionofcompoundaircurtainonsmokecontrol AT yimengcui studyontheeffectofjetdirectionofcompoundaircurtainonsmokecontrol
_version_	1718433819091009536

Study on the Effect of Jet Direction of Compound Air Curtain on Smoke Control

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