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discharge time from compressed tank

Posted: Fri May 20, 2011 1:41 am
by spvega
Thank you for receiving me in this forum.
Need help to determine the time required to drain a pressurized tank.
It's a 5 cubic meters tank, with air at 100 psi and need to drain to atmosphere through a 12 mm orifice.
Problem is that the tank pressure will be gradually reduced as it is being drained, so I assume the flow is being reduced, and cannot find the rationale (formula) to determine the time used to fully drain the tank (to 0 psi).
Thank you for the help.
Sergio

Re: discharge time from compressed tank

Posted: Fri May 20, 2011 6:22 pm
by admin
In order to solve this problem you should use equations for non steady flow which is differential equation. At the moment I do not have the solution but will try to answer it later.

Re: discharge time from compressed tank

Posted: Fri May 20, 2011 7:11 pm
by spvega
Thank you for your assistance. Hope you can find it. Will try on my side as well.

Re: discharge time from compressed tank

Posted: Thu Mar 22, 2012 4:01 am
by pedrosydow
I have the same problem.. Anyone can help us?