Cover Image

The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG)

Hydrogen- enriched natural gas has been widely used in all over the world for application in gas turbine and internal combustion engine. The theory behind this concept is the addition of hydrogen in natural gas can extend the lean operation limit, improve the lean burn ability, and decrease the emis...

Full description

Saved in:
Bibliographic Details
Main Author: Azza Nurain, Kairallah
Format: Undergraduates Project Papers
Language:English
Published: 2010
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/3096/1/CD5582_AZZA_NURAIN.pdf
http://umpir.ump.edu.my/id/eprint/3096/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.ump.umpir.3096
record_format eprints
spelling my.ump.umpir.30962021-07-05T03:36:29Z http://umpir.ump.edu.my/id/eprint/3096/ The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG) Azza Nurain, Kairallah TP Chemical technology Hydrogen- enriched natural gas has been widely used in all over the world for application in gas turbine and internal combustion engine. The theory behind this concept is the addition of hydrogen in natural gas can extend the lean operation limit, improve the lean burn ability, and decrease the emission of NOx, CO and unburned hydrocarbon. The aims of this study are to determine the effect of vacuum pressures on the flammability limits of hydrogen enrichment in natural gas. In this experiment, methane is use to replace the natural gas. The experiments were performed in a 20 L closed explosion vessel. The mixtures were ignited by using spark permanent wire that placed at the centre of the vessel. The explosion pressure data is used to determine the flammability limits, when the low pressure is used in the explosion, the explosion limit will become wide. In this study, the result shows the flammability limits of methane is from 5 % volume to 15 % volume of methane and have revealed that the addition of hydrogen in methane /air mixture will reduce the lower flammability limit initially at 5 % volume to 1 % volume of methane at 0.98 bar. As the conclusion, we can come out that explosion of methane at lower pressure with addition of hydrogen has proven benefit of widen the flammability limit of methane, improving the combustion stability, reduce the emission of NOx, CO and unburned hydrocarbon and decreasing the spark timing. Hence, the cold start phenomenon that usually occurs at the initial stage of combustion could be overcome by adding hydrogen at low pressure. 2010-12 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/3096/1/CD5582_AZZA_NURAIN.pdf Azza Nurain, Kairallah (2010) The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG). Faculty of Chemical & Natural Resources Engineering , Universiti Malaysia Pahang .
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Azza Nurain, Kairallah
The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG)
description Hydrogen- enriched natural gas has been widely used in all over the world for application in gas turbine and internal combustion engine. The theory behind this concept is the addition of hydrogen in natural gas can extend the lean operation limit, improve the lean burn ability, and decrease the emission of NOx, CO and unburned hydrocarbon. The aims of this study are to determine the effect of vacuum pressures on the flammability limits of hydrogen enrichment in natural gas. In this experiment, methane is use to replace the natural gas. The experiments were performed in a 20 L closed explosion vessel. The mixtures were ignited by using spark permanent wire that placed at the centre of the vessel. The explosion pressure data is used to determine the flammability limits, when the low pressure is used in the explosion, the explosion limit will become wide. In this study, the result shows the flammability limits of methane is from 5 % volume to 15 % volume of methane and have revealed that the addition of hydrogen in methane /air mixture will reduce the lower flammability limit initially at 5 % volume to 1 % volume of methane at 0.98 bar. As the conclusion, we can come out that explosion of methane at lower pressure with addition of hydrogen has proven benefit of widen the flammability limit of methane, improving the combustion stability, reduce the emission of NOx, CO and unburned hydrocarbon and decreasing the spark timing. Hence, the cold start phenomenon that usually occurs at the initial stage of combustion could be overcome by adding hydrogen at low pressure.
format Undergraduates Project Papers
author Azza Nurain, Kairallah
author_facet Azza Nurain, Kairallah
author_sort Azza Nurain, Kairallah
title The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG)
title_short The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG)
title_full The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG)
title_fullStr The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG)
title_full_unstemmed The effect of vacuum pressure on the flammability limits of H2 enrichment in natural gas (NG)
title_sort effect of vacuum pressure on the flammability limits of h2 enrichment in natural gas (ng)
publishDate 2010
url http://umpir.ump.edu.my/id/eprint/3096/1/CD5582_AZZA_NURAIN.pdf
http://umpir.ump.edu.my/id/eprint/3096/
_version_ 1705056903141261312
score 13.211869

Similar Items