https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32400 -1 for the range of methane mixtures exploded. The severity of the explosions increased with increasing igniter energy. The maximum pressure rise rate increased from 83 bar.s ^-1 for 1 kJ igniter to 90 bar.s^-1 for 2 kJ igniter, to 155 bar.s^-1 for 5 kJ igniter and to 222 bar.s^-1 for 10 kJ igniter. The severity of the explosions increased with increased coal dust concentration. At 2.5% methane-air mixture, the pressure rise rate increased from 4 bar.s^-1 to 114 bar.s^-1 when the coal dust concentration increased from 50 g.m^-3 to 100 g.m^-3, respectively.]]> Thu 31 May 2018 09:05:09 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34978 3 spherical explosion chamber. The effects of turbulence and explosive powders on explosion parameters such as the deflagration index, maximum explosion pressure and burning velocity were examined. Theoretical calculations were conducted and are presented alongside the experimental data. The study suggests that the presence of turbulence increases the maximum explosion pressure. The values of the deflagration indices and burning velocities were found to be increased by the turbulence. The presence of an explosive powder provides similar effects to turbulence, and the values of the maximum explosion pressure, deflagration index and burning velocities increased with increases of the mass of the explosive powders. The magnitude of the turbulence generated in the explosion chamber was determined theoretically by employing Damköhler’s correlation.]]> Mon 02 Mar 2020 11:49:31 AEDT ]]>