
114 Oxygen-Enhanced Combustion
oxygen enrichment is a function of the existing materi-
als within the air main pipe, the cleanliness of the air
main pipe, and the design of the pipe line and compo-
nents located downstream of the oxygen injection point.
The percentage of oxygen enrichment can also be cal-
culated (and interlocked to the oxygen safety shutoff
valves) based on a measured air ow rate and a mea-
sured oxygen ow rate.
6.6 Ignition Control
Ignition of a fuel and an oxidant mixture that is within
the ammability limits has many possible causes, which
include elevated temperature, particle impact, electrical
discharge (arc or spark), rap ...