Compressible air flow into chamber over tube and valve
Compressible air flow into chamber over tube and valve
(OP)
Hello together,
I'm trying to calculate the mass flow of air out of a chamber and also back into it. It works well for the outflow, but not for the inflow.
I prepared and attached a pdf that shows the problem and the derivation of equations used. I hope you can well understand the problem and help with your comments.
Thank you,
pjer
I'm trying to calculate the mass flow of air out of a chamber and also back into it. It works well for the outflow, but not for the inflow.
I prepared and attached a pdf that shows the problem and the derivation of equations used. I hope you can well understand the problem and help with your comments.
Thank you,
pjer





RE: Compressible air flow into chamber over tube and valve
RE: Compressible air flow into chamber over tube and valve
RE: Compressible air flow into chamber over tube and valve
Why are you discharging the cylinder to a volume?
RE: Compressible air flow into chamber over tube and valve
I think the error is for phase 2 where you seem to be trying to do the reverse of Phase 1, but in fact it is the same thing as Phase 1, only with different pressures and volumes.
I think in essence what is happening is that you're blowing air from high pressure into the actuator, but "sucking" the low pressure chamber from the actuator.
I've read this a couple of time now and think this is not the way to do it.
I don't understand what temperature has to do with this - all rather opaque at the moment, at least to me....
Remember - More details = better answers
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RE: Compressible air flow into chamber over tube and valve
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.
RE: Compressible air flow into chamber over tube and valve
Seems to me strange that Cp for instance has the same value in the tube and in the chambers as for real gas it is dependent upon gas conditions.