Equations developed previously, which related the maximum pressure in a
vented dust explosion to the properties of the dust and the geometry of the
explosion vessel, have been checked against further experimental data, and
their theoretical basis has been extended. The following industrial plant
systems were considered: vent ducting, a cyclone, and relatively large vessels
with small vents. Attention was also paid to maximum rates of pressure rise
in closed vessels of different volumes.
The application of the equations to the plant systems was generally adequate
and gave further insight into the processes involved in vented dust explosions.
There is still a serious shortage of experimental data for dust explosion
venting, requiring the continued use of unconfirmed basic assumptions.
