Flare
Flare
(OP)
Hello,
I have a simple question about flare. What could cause a flame out (in a steam smokeless refinery flare)?
I know that if steam to gas ratio is more than required (more steam or less gas) it would cause the flame out. But is there any other possible reason?
I have a simple question about flare. What could cause a flame out (in a steam smokeless refinery flare)?
I know that if steam to gas ratio is more than required (more steam or less gas) it would cause the flame out. But is there any other possible reason?





RE: Flare
High velocities (say, 1000 fps) of low gas heating value (~300 Btu/ft3) can extinguish a flame. Flare tip diameters for normal operation (not emergency flaring) are designed on basis of the maximum allowable (regulated) velocities and the total actual volumetric flow.
I pressume the following site may provide more information:
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RE: Flare
RE: Flare
RE: Flare
John
RE: Flare
According to EPA a flare handling gases with heat content greater than 1,000 Btu/std. ft3 can have a stable flame as long as the exit velocity of the flare gas is below 400 ft/s. Read [b]Design and Operate Flares Safely[/b by Ajay Kumar in the Environmental Manager section of ChE, December 1998.
RE: Flare
RE: Flare