Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position

Gas explosions in obstructed vessels have been investigated for many years. However, the flame acceleration mechanism of enriched-hydrogen fuels with diluents in the piping system has received little systematic study in the literature. This particular study aimed to analyse the flame front mechanism...

Full description

Bibliographic Details
Main Authors:	Sina Davazdah, Emami, Rafiziana, Md. Kasmani, Zahra, Naserzadeh, Che Rosmani, Che Hassan, Mahar Diana, Hamid, Siti Zubaidah, Sulaiman, Norazana, Ibrahim, Mohd Dinie Muhaimin, Samsudin
Format:	Article
Language:	English
Published:	Elsevier Ltd 2017
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/16552/ http://umpir.ump.edu.my/id/eprint/16552/ http://umpir.ump.edu.my/id/eprint/16552/ http://umpir.ump.edu.my/id/eprint/16552/1/Effectiveness%20of%20diluent%20gases%20on%20hydrogen%20flame%20propagation%20in%20tee%20pipe%20%28part%20II%29%20%E2%80%93%20Influence%20of%20tee%20junction%20position.pdf

id	ump-16552
recordtype	eprints
spelling	ump-165522017-04-26T02:22:03Z http://umpir.ump.edu.my/id/eprint/16552/ Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position Sina Davazdah, Emami Rafiziana, Md. Kasmani Zahra, Naserzadeh Che Rosmani, Che Hassan Mahar Diana, Hamid Siti Zubaidah, Sulaiman Norazana, Ibrahim Mohd Dinie Muhaimin, Samsudin TP Chemical technology Gas explosions in obstructed vessels have been investigated for many years. However, the flame acceleration mechanism of enriched-hydrogen fuels with diluents in the piping system has received little systematic study in the literature. This particular study aimed to analyse the flame front mechanism of hydrogen-diluents/air explosion inside the pipe by considering the influence of tee junction distance from the ignition points. The tests were performed using H2/diluents-air at different concentrations and ignition positions, in two different tee junction pipe configurations. From the results, the worst case of explosion severity was found in 95% H2–2.5% Ar–2.5% N2/air for all ignition positions. In general, if ignition happened at the tee junction, the overpressure and rate of pressure rise profiles showed almost a similar trend on both configurations. Similar trend was also observed for the flame flow characteristic analysis. Overall, it was clearly demonstrated that a shorter distance between ignition point and obstacles resulted in higher explosion severity. Elsevier Ltd 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/16552/1/Effectiveness%20of%20diluent%20gases%20on%20hydrogen%20flame%20propagation%20in%20tee%20pipe%20%28part%20II%29%20%E2%80%93%20Influence%20of%20tee%20junction%20position.pdf Sina Davazdah, Emami and Rafiziana, Md. Kasmani and Zahra, Naserzadeh and Che Rosmani, Che Hassan and Mahar Diana, Hamid and Siti Zubaidah, Sulaiman and Norazana, Ibrahim and Mohd Dinie Muhaimin, Samsudin (2017) Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position. Fuel, 190. pp. 260-267. ISSN 0016-2361 http://doi.org/10.1016/j.fuel.2016.11.018 DOI: 10.1016/j.fuel.2016.11.018
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 Sina Davazdah, Emami Rafiziana, Md. Kasmani Zahra, Naserzadeh Che Rosmani, Che Hassan Mahar Diana, Hamid Siti Zubaidah, Sulaiman Norazana, Ibrahim Mohd Dinie Muhaimin, Samsudin Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position
description	Gas explosions in obstructed vessels have been investigated for many years. However, the flame acceleration mechanism of enriched-hydrogen fuels with diluents in the piping system has received little systematic study in the literature. This particular study aimed to analyse the flame front mechanism of hydrogen-diluents/air explosion inside the pipe by considering the influence of tee junction distance from the ignition points. The tests were performed using H2/diluents-air at different concentrations and ignition positions, in two different tee junction pipe configurations. From the results, the worst case of explosion severity was found in 95% H2–2.5% Ar–2.5% N2/air for all ignition positions. In general, if ignition happened at the tee junction, the overpressure and rate of pressure rise profiles showed almost a similar trend on both configurations. Similar trend was also observed for the flame flow characteristic analysis. Overall, it was clearly demonstrated that a shorter distance between ignition point and obstacles resulted in higher explosion severity.
format	Article
author	Sina Davazdah, Emami Rafiziana, Md. Kasmani Zahra, Naserzadeh Che Rosmani, Che Hassan Mahar Diana, Hamid Siti Zubaidah, Sulaiman Norazana, Ibrahim Mohd Dinie Muhaimin, Samsudin
author_facet	Sina Davazdah, Emami Rafiziana, Md. Kasmani Zahra, Naserzadeh Che Rosmani, Che Hassan Mahar Diana, Hamid Siti Zubaidah, Sulaiman Norazana, Ibrahim Mohd Dinie Muhaimin, Samsudin
author_sort	Sina Davazdah, Emami
title	Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position
title_short	Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position
title_full	Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position
title_fullStr	Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position
title_full_unstemmed	Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position
title_sort	effectiveness of diluent gases on hydrogen flame propagation in tee pipe(part ii) – influence of tee junction position
publisher	Elsevier Ltd
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/16552/ http://umpir.ump.edu.my/id/eprint/16552/ http://umpir.ump.edu.my/id/eprint/16552/ http://umpir.ump.edu.my/id/eprint/16552/1/Effectiveness%20of%20diluent%20gases%20on%20hydrogen%20flame%20propagation%20in%20tee%20pipe%20%28part%20II%29%20%E2%80%93%20Influence%20of%20tee%20junction%20position.pdf
first_indexed	2023-09-18T22:22:19Z
last_indexed	2023-09-18T22:22:19Z
_version_	1777415739045576704

Effectiveness of Diluent Gases on Hydrogen Flame Propagation in Tee Pipe(part II) – Influence of Tee Junction Position

Similar Items