@article{ref1,
title="Effect of spark duration on explosion parameters of methane/air mixtures in closed vessels",
journal="Safety science",
year="2012",
author="Zhang, Qi and Li, Wei and Liang, Hui-Min",
volume="50",
number="9",
pages="1715-1721",
abstract="The paper outlines an experimental study on influence of the spark duration and the vessel volume on explosion parameters of premixed methane-air mixtures in the closed explosion vessels. The main findings from these experiments are: For the weaker ignition the spark durations in the range from 6.5 μs to 40.6 μs had little impact on explosion parameters for premixed methane-air mixtures in the 5 L vessel or 20 L vessel; For the same ignitions and volume fractions of methane in air the explosion pressures and the flame temperatures in both vessels of 5 L and 20 L were approximately the same, but the rates of pressure rises in both vessels of 5 L and 20 L were different; The explosion indexes obtained from the measured pressure time histories for both vessels of 5 L and 20 L were approximately equal; For the weaker ignition with the fixed spark duration 45 μs the ignition energies in the range from 54 mJ to 430 mJ had little impact on the explosion parameters; For the same ignition and the volume fractions of methane in air, the vessel volumes had a significant impact on the flame temperatures near the vessel wall; The flame temperatures near the vessel wall decreased as the vessel volumes increased.<p />",
language="en",
issn="0925-7535",
doi="10.1016/j.ssci.2012.04.004",
url="http://dx.doi.org/10.1016/j.ssci.2012.04.004"
}