The University of Newcastle, Australia

Experimental process and facilities

Below is a selection of the apparatus used in testing throughout the project. A range of gas, gas-dust and gas particulate explosions were ignited in varying concentrations and conditions. Data from this research has culminated in the design and construction of an at-scale VAM Capture Duct.

  • Determination of the minimum explosive concentration of gas, dust, and hybrid
  • Determination of the maximum explosion pressure Pmax of dust clouds
  • Determination of the maximum rate of explosion pressure rise (dp/dt) max of dust clouds
  • Determination of the lower explosion limit LEL of dust clouds
  • Determination of the limiting oxygen concentration LOC of dust clouds

  • Determination of the minimum explosive concentration of gas, dust, and hybrid
  • Determination of the maximum explosion pressure Pmax of dust clouds
  • Determination of the maximum rate of explosion pressure rise (dp/dt) max of dust clouds
  • Determination of the lower explosion limit LEL of dust clouds
  • Determination of the limiting oxygen concentration LOC of dust clouds

  • Determination of minimum ignition energy of dust/air mixtures
  • Applicable for all types of combustible dusts
  • Applicable for all types of flammable gases (methane, propane, etc.)

  • Determining the minimum ignition temperatures of combustible dust layer on a heated surface at a constant temperature.
  • Applicable for all types of combustible dusts

  • Determining the minimum ignition temperatures of combustible dust cloud at a constant temperature.
  • Applicable for all types of combustible dusts
  • Applicable for all types of flammable gases (methane, propane, etc.)

  • Determining the lower and upper concentration limits of flammability of chemicals having sufficient vapour pressure to form flammable mixtures in air at one atmosphere pressure at test temperature.
  • Determining the lower and upper concentration limits of flammability of chemicals in the presence of inert dilution gas.

  • Determine blast pressure and pressure wave velocity
  • Investigate the occurrence of DDT (Deflagration-to-Detonation Transition)
  • Examine flame front velocity
  • Determine pressure piling
  • Define the minimum explosive concentration of gas, dust, and hybrid
  • Determine the maximum explosion pressure Pmax of gas and/or combustible dust
  • Determine the maximum rate of explosion pressure rise (dp/dt) max
  • Determination of the lower explosion limit (LEL) of gas/dust or hybrid fuel
  • Examine flame front velocity
  • Determine blast pressure and pressure wave velocity within the pipe
  • Determine the rate of energy release
  • Investigate the occurrence of direct detonation
  • Determine pressure piling

  • Assessment of class of materials flame retardants
  • Determine heat release rate from materials during combustion process
  • Define flammability parameters of solid fuels