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Flare Stack Air Assist Blower Sizing


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#1 KeJoSa2010

KeJoSa2010

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Posted 05 August 2020 - 10:14 AM

What methods are used to size air assist blowers for flare stacks (assuming smokeless design)?



#2 Bobby Strain

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Posted 05 August 2020 - 02:14 PM

One provides a duty specification to vendors of such equipment.



#3 KeJoSa2010

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Posted 05 August 2020 - 02:52 PM

How do you determine the required duty for smokeless design? Smokeless design depends on the Ringlemann number requirement. Some regulations require Ringelmann 1 (20% opacity) while others require Ringlemann 0 (0% opacity). Are there methods to calculate the air required to produce a particular Ringelmann number given the flare gas composition/flow rate. This isn't so straight forward because there are so many factors (i.e., tip efficiency, background lighting, light scattering, etc.).

 

This is something I am being asked to do. I can't find much in the literature and obviously vendors have proprietary methods. Are there general methods to estimate the blower duty?


Edited by KeJoSa2010, 05 August 2020 - 03:22 PM.





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