Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline

The acceleration of flame inside a pipe is a complex phenomenon involving several variables spanning from fuel nature, mixture composition and geometrical characteristics of the pipe itself such as length, wall roughness or presence of obstacles. One of the key parameters governing the process of...

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Main Authors:	Siti Zubaidah, Sulaiman, R. M., Kasmani, A., Mustafa
Format:	Conference or Workshop Item
Language:	English
Published:	2014
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/6116/ http://umpir.ump.edu.my/id/eprint/6116/1/fkksa-2014-zubaidah-Investigation_on_premixed.pdf

id	ump-6116
recordtype	eprints
spelling	ump-61162015-03-03T09:28:15Z http://umpir.ump.edu.my/id/eprint/6116/ Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline Siti Zubaidah, Sulaiman R. M., Kasmani A., Mustafa TP Chemical technology The acceleration of flame inside a pipe is a complex phenomenon involving several variables spanning from fuel nature, mixture composition and geometrical characteristics of the pipe itself such as length, wall roughness or presence of obstacles. One of the key parameters governing the process of flame acceleration is the presence of obstacles in pipe. Extensive studies have been carried out to investigate the profiles of flame propagation and maximum pressure performed in pipe with of 90 degree bend. This work seeks to evaluate the magnitude of the hydrogen-air mixture explosion using 90 degree pipe configuration as a full bore obstacle condition. The data covers a wide range of hydrogen concentration between 13 to 54 % v/v (equivalence ratio, = 0.6-1.4). The experimental work was performed in a closed pipe of length to diameter ratio (L/D) of 51 with a volume of 0.42 m3, operating at ambient conditions. From the result, it was observed that the highest explosion severity occurred at slightly rich concentration (=1.2) or 36% v/v. It is worth to note that the pressure downstream of bend gave about 2 times higher compared to the pressure observed at the bend. This is due to the retonation effect, causing the flame intensification and intense turbulent towards the end wall and this phenomenon is highlighted. 2014 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6116/1/fkksa-2014-zubaidah-Investigation_on_premixed.pdf Siti Zubaidah, Sulaiman and R. M., Kasmani and A., Mustafa (2014) Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline. In: 10th International Symposium on Hazard, Prevention & Mitigation of Industrial Explosion, 10-13 June 2014 , Bergen, Norway. pp. 1-10..
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Siti Zubaidah, Sulaiman R. M., Kasmani A., Mustafa Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline
description	The acceleration of flame inside a pipe is a complex phenomenon involving several variables spanning from fuel nature, mixture composition and geometrical characteristics of the pipe itself such as length, wall roughness or presence of obstacles. One of the key parameters governing the process of flame acceleration is the presence of obstacles in pipe. Extensive studies have been carried out to investigate the profiles of flame propagation and maximum pressure performed in pipe with of 90 degree bend. This work seeks to evaluate the magnitude of the hydrogen-air mixture explosion using 90 degree pipe configuration as a full bore obstacle condition. The data covers a wide range of hydrogen concentration between 13 to 54 % v/v (equivalence ratio, = 0.6-1.4). The experimental work was performed in a closed pipe of length to diameter ratio (L/D) of 51 with a volume of 0.42 m3, operating at ambient conditions. From the result, it was observed that the highest explosion severity occurred at slightly rich concentration (=1.2) or 36% v/v. It is worth to note that the pressure downstream of bend gave about 2 times higher compared to the pressure observed at the bend. This is due to the retonation effect, causing the flame intensification and intense turbulent towards the end wall and this phenomenon is highlighted.
format	Conference or Workshop Item
author	Siti Zubaidah, Sulaiman R. M., Kasmani A., Mustafa
author_facet	Siti Zubaidah, Sulaiman R. M., Kasmani A., Mustafa
author_sort	Siti Zubaidah, Sulaiman
title	Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline
title_short	Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline
title_full	Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline
title_fullStr	Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline
title_full_unstemmed	Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline
title_sort	investigation on premixed hydrogen/air explosion in closed pipeline
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/6116/ http://umpir.ump.edu.my/id/eprint/6116/1/fkksa-2014-zubaidah-Investigation_on_premixed.pdf
first_indexed	2023-09-18T22:01:36Z
last_indexed	2023-09-18T22:01:36Z
_version_	1777414435144466432

Investigation on Premixed Hydrogen/air Explosion in Closed Pipeline

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