Effect Of H2 Enrichment On The Explosive Limits Of Liquefied Petroleum Gas (LPG) In Conventional Combustion
Author(s)
I. Izirwan, S. Noor Shahirah, S. Siti Zubaidah, M. N. Mohd Zulkifli & A. R. Abdul Halim
Abstract
Effect of H2 enrichment on the explosive
limits of Liquefied Petroleum Gas (LPG) in conventional combustion
I. Izirwan, S. Noor Shahirah, S. Siti Zubaidah, M. N. Mohd Zulkifli & A. R. Abdul Halim
Faculty of Chemical Engineering and Natural Resources,
Universiti Malaysia Pahang, Malaysia
Abstract
The use of hydrogenated fuels shows a considerable promise for the applications
in gas turbines and internal combustion engines. Hydrogen holds a significant
promise as a supplemental fuel to improve the performance and emissions of
ignited spark and compression ignited engines. Hydrogen has the ability to burn
at extremely lean equivalence ratios. In addition, it is important to analyze the
explosive limits for safety reasons and to increase the efficiency in operation of
many industrial and domestic applications that use the explosion concept. The
aims of this study are to determine the explosive limits of liquefied petroleum
gas/air mixture and to investigate the effect on the explosive limits of liquefied
petroleum gas/air mixture enriched up to 8% vol of hydrogen at atmospheric
pressure and ambient temperature. The experiments were performed in a
constant volume of 20 liter closed spherical vessel. The mixtures were ignited by
using a spark permanent wire that was placed at the centre of the vessel. The
pressure-time variations during the explosion of liquefied petroleum gas/air
mixture in explosion vessel were recorded. The explosion pressure data is used
to determine the explosive limits which flame propagation is considered to occur
if the explosion pressure is greater than 0.1 bar. In this study, the result shows
the explosive limits range from 2 to 8% vol of liquefied petroleum gas/air
mixture and has revealed that the addition of hydrogen in liquefied petroleum
gas/air mixture decreases the lower explosive limit from 2 to 1% vol and for the
upper explosive limit, the limit is also decrease from 8 to 7% vol.
Keywords: explosive limits, hydrogen enrichment, liquefied petroleum gas,
closed explosion vessel.
Keywords
explosive limits, hydrogen enrichment, liquefied petroleum gas,
closed explosion vessel
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