CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time

Water sprinkler system is considered one of the main water-based fire suppression systems. Due to the turbulent nature of fire, prediction of water sprinklers activation time required performing numerous experiments and tests to understand the nature of the parameters involved in changing the activa...

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Main Authors: Nasif, M.S., Fekry, M., Ismail, F.B.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.25356 /
Published: Asian Research Publishing Network 2016
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007273692&partnerID=40&md5=f6a848e67b2602b3c8cc11cbe54e9eed
http://eprints.utp.edu.my/25356/
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spelling utp-eprints.253562021-08-27T12:58:57Z CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time Nasif, M.S. Fekry, M. Ismail, F.B. Water sprinkler system is considered one of the main water-based fire suppression systems. Due to the turbulent nature of fire, prediction of water sprinklers activation time required performing numerous experiments and tests to understand the nature of the parameters involved in changing the activation time. It was noticed that the angle where the sprinkler arms are oriented towards the hot gas jet resulting from a fire had a great impact on the activation time of the sprinkler. In this research the orientation of the sprinkler's arm was changed by using Computational Fluid Dynamics (CFD) simulation. It was found that changing the sprinkler arm angle from perpendicular to the flow (90°) to 60°, 30° and parallel to the flow (0°) has resulted in increasing t sprinkler activation time by about 8, 84, and 163 respectively. The effect of sprinkler activation time variation was investigated on stacked wood pallets heat release rate. It was found that with a parallel orientation the fire is allowed to grow 2.5 times more in terms of Heat Release Rate (HRR) than with perpendicular orientation. © 2006-2016 Asian Research Publishing Network (ARPN). Asian Research Publishing Network 2016 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007273692&partnerID=40&md5=f6a848e67b2602b3c8cc11cbe54e9eed Nasif, M.S. and Fekry, M. and Ismail, F.B. (2016) CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time. ARPN Journal of Engineering and Applied Sciences, 11 (22). pp. 12919-12922. http://eprints.utp.edu.my/25356/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Water sprinkler system is considered one of the main water-based fire suppression systems. Due to the turbulent nature of fire, prediction of water sprinklers activation time required performing numerous experiments and tests to understand the nature of the parameters involved in changing the activation time. It was noticed that the angle where the sprinkler arms are oriented towards the hot gas jet resulting from a fire had a great impact on the activation time of the sprinkler. In this research the orientation of the sprinkler's arm was changed by using Computational Fluid Dynamics (CFD) simulation. It was found that changing the sprinkler arm angle from perpendicular to the flow (90°) to 60°, 30° and parallel to the flow (0°) has resulted in increasing t sprinkler activation time by about 8, 84, and 163 respectively. The effect of sprinkler activation time variation was investigated on stacked wood pallets heat release rate. It was found that with a parallel orientation the fire is allowed to grow 2.5 times more in terms of Heat Release Rate (HRR) than with perpendicular orientation. © 2006-2016 Asian Research Publishing Network (ARPN).
format Article
author Nasif, M.S.
Fekry, M.
Ismail, F.B.
spellingShingle Nasif, M.S.
Fekry, M.
Ismail, F.B.
CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time
author_sort Nasif, M.S.
title CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time
title_short CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time
title_full CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time
title_fullStr CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time
title_full_unstemmed CFD investigation on the effect of varying fire sprinkler orientation on sprinkler activation time
title_sort cfd investigation on the effect of varying fire sprinkler orientation on sprinkler activation time
publisher Asian Research Publishing Network
publishDate 2016
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007273692&partnerID=40&md5=f6a848e67b2602b3c8cc11cbe54e9eed
http://eprints.utp.edu.my/25356/
_version_ 1741196961387642880
score 11.62408

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