The input rate of a burner at or near maximum.


Related Terms

NOZZLE-MIX GAS BURNER

Aburnerinwhich injection nozzles mix air and fuel gas at the 374 burner tile. nozzle throat with the

MULTIPORT BURNER

A burner having several nozzles which discharge fuel and air.

LOWEST SAFE WATERLINE

The lowest water level in a boiler drum at which the burner may safely operate.

INTERTUBE BURNER

A burner which utilizes a nozzle that discharges between adjacent tubes.

INDUCTION BURNER

Fuel-air burner into which the fuel is fed under pressure to entrain needed air into the combustion nozzle area.

PRIMARY AIR

Air introduced with fuel at the burners.

EXCESS AIR

The amount of air needed by a burner which is in excess of the amount required for perfect or stoichiometric combustion. Some amount of excess air, depending on the available fuel/air mixing energy, is required to assure through mixing of the fuel and air for complete combustion.

GAS TIP

The part of a burner which discharges the gas fuel via one or more openings into the furnace. The size, arrangement, and angular disposition of the openings in the tip have a major effect on the size and shape of the flame.

FLAME SPEED

The rate at which a flame can propagate in a combustion mixture. If the flame is lower than the speed of the reacting flow, the flame may lift off the burner. If the flame speed is higher than the speed of the reacting flow the flame may flash back into the burner.

LOW GAS PRESSURE SWITCH

A control to stop the burner if gas pressure is too low.

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