The pressure at the start of a 180km stainless steel natural gas pipeline is 4MPa and at the end is 2MPa. if the diameter is 0.4m, what will be the gas flow rate through the system?(adsbygoogle = window.adsbygoogle || []).push({});

(ignore losses other than friction, ρ= 40 kg/m^3, μ= 11x10^-6 Pa)

Could anybody please point me in the right direction on how I actually do this question?

I have done questions where we were asked the mass flow rate before but we were not given values for pressure etc in them. I know that i have to use the moody diagram but do not know what to do with the pressure values given.

Also came across this formula in my notes: μ = [(∏*d^4)/(128*Q*l)]*(P1-P2) but surely it could not be that easy?

Thanks for any help in advance!

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# How to calculate gas flow rate through a system?

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