Air Flow through a choke calculation
Air Flow through a choke calculation
(OP)
What would be the airflow through a 4/1000" choke at 60 psi air pressure?
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Air Flow through a choke calculation
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RE: Air Flow through a choke calculation
RE: Air Flow through a choke calculation
I got 0.786scfh (density at 74.7 psia and 100 deg.F is 0.4322 lb/cu.ft and at std. conditions it is 0.0763 lb/cu.ft). What are your values? I think there may be mathematical errors due to unit conversion and rounding up in my calculation.
Daewoo! Here is a link for you.
http://www.air-dispersion.com/usource.ht...
Regards,
Believe it or not : Goldbach's conjecture says any even number can be written as a sum of two prime numbers. Postulated in 16th century, nobody could, so far, prove it nor disproove it.
RE: Air Flow through a choke calculation
RE: Air Flow through a choke calculation
That still doesn't explain though why you are getting a lower flow rate since that higher fluid density 'should' make your flow rate higher. In any event, I'm pushing my spreadsheet, I should do a manual calc as a check.
Plus, since the Reynold's number is going to be low in the upstream piping (and the OP doesn't give the pipe ID), my estimate of the orifice coefficient is suspect.
RE: Air Flow through a choke calculation
http://www.cleandryair.com/air_density_3...
BTW, can you tell me whether the density data given in the above link is correct?
Regards,
Believe it or not : Pythagorus theorem was used 2500 years before Pythagorus was born.
RE: Air Flow through a choke calculation
density = lb/ft3
MW = lb/lbmole, 28.96 for dry air.
Z, unitless, taken as 1.0 for this example
T = absolute temperature, deg R
RE: Air Flow through a choke calculation
RE: Air Flow through a choke calculation
Would you please detail me your assumptions and method.
Regards,
Believe it or not : Pythagorus theorem was used 2500 years before Pythagorus was born.