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The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG)

The Liquefied Petroleum Gas (LPG) is a flammable mixture of hydrocarbon gases. In transportation or handling the LPG gases, it is very important to know the flammability limits and the pressure of the gas to avoid any accident or explosion occurred. The pressure of LPG takes part in the flammability...

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Main Author: Norazma, Mukhtar
Format: Undergraduates Project Papers
Language:English
Published: 2010
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/3348/1/CD5578_NORAZMA_MUKHTAR.pdf
http://umpir.ump.edu.my/id/eprint/3348/
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spelling my.ump.umpir.33482021-07-05T03:26:23Z http://umpir.ump.edu.my/id/eprint/3348/ The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG) Norazma, Mukhtar TP Chemical technology The Liquefied Petroleum Gas (LPG) is a flammable mixture of hydrocarbon gases. In transportation or handling the LPG gases, it is very important to know the flammability limits and the pressure of the gas to avoid any accident or explosion occurred. The pressure of LPG takes part in the flammability limits either Upper Flammability Limit (UFL) or Lower Flammability Limit (LFL). So, the aims of this research are to investigate the effect of vacuum pressure on the flammability limits of LPG/air. The experiments are performed in a 20 L spherical explosion vessel. The mixtures are ignited using spark permanent wire that place at the centre of the vessel. The pressures are used starting from 0.96 bar up to 1.0 bar. The pressure-time variations during explosions of LPG/air mixtures in explosion vessel are recorded. The explosion pressure data is used to determine the flammability limits which flame propagation is occurred if explosion pressure greater than 0.96 bar. In this experiment, the result shows the LFL is decrease when the pressure decreasing but, UFL is increasing with the increasing of pressure. The LFL for 0.98 bar is 2 volume % of LPG and for 0.96 bar is 1 volume % of LPG. The UFL for 0.98 bar and 0.96 bar are the same which is 8 volume % of LPG. But the Pm for UFL for 0.98 bar is 0.7 bar and Pm for UFL for 0.96 bar is 0.9 bar. 2010-11 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/3348/1/CD5578_NORAZMA_MUKHTAR.pdf Norazma, Mukhtar (2010) The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG). Faculty of Chemical and 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
Norazma, Mukhtar
The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG)
description The Liquefied Petroleum Gas (LPG) is a flammable mixture of hydrocarbon gases. In transportation or handling the LPG gases, it is very important to know the flammability limits and the pressure of the gas to avoid any accident or explosion occurred. The pressure of LPG takes part in the flammability limits either Upper Flammability Limit (UFL) or Lower Flammability Limit (LFL). So, the aims of this research are to investigate the effect of vacuum pressure on the flammability limits of LPG/air. The experiments are performed in a 20 L spherical explosion vessel. The mixtures are ignited using spark permanent wire that place at the centre of the vessel. The pressures are used starting from 0.96 bar up to 1.0 bar. The pressure-time variations during explosions of LPG/air mixtures in explosion vessel are recorded. The explosion pressure data is used to determine the flammability limits which flame propagation is occurred if explosion pressure greater than 0.96 bar. In this experiment, the result shows the LFL is decrease when the pressure decreasing but, UFL is increasing with the increasing of pressure. The LFL for 0.98 bar is 2 volume % of LPG and for 0.96 bar is 1 volume % of LPG. The UFL for 0.98 bar and 0.96 bar are the same which is 8 volume % of LPG. But the Pm for UFL for 0.98 bar is 0.7 bar and Pm for UFL for 0.96 bar is 0.9 bar.
format Undergraduates Project Papers
author Norazma, Mukhtar
author_facet Norazma, Mukhtar
author_sort Norazma, Mukhtar
title The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG)
title_short The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG)
title_full The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG)
title_fullStr The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG)
title_full_unstemmed The effect of vacuum pressure on the flammability limits of liquefied petroleum gas (LPG)
title_sort effect of vacuum pressure on the flammability limits of liquefied petroleum gas (lpg)
publishDate 2010
url http://umpir.ump.edu.my/id/eprint/3348/1/CD5578_NORAZMA_MUKHTAR.pdf
http://umpir.ump.edu.my/id/eprint/3348/
_version_ 1705056919235854336
score 13.211869

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