Gas Turbine Inlet Flow with Static Pressure Taps
Gas Turbine Inlet Flow with Static Pressure Taps
(OP)
Good day,
I've trying to figure out something that I would like to request your help with. For a converging nozzle in a single inlet and single exit control volume; if you know the static pressure at the inlet to the nozzle and the outlet to the nozzle, how would you go about determining the mass flow. Assume ideal air conditions non compressible flow. Is there a simple equation for that? I'm trying to figure out how one would be able to instrument such nozzle to determine if there are obstructions downstream of the nozzle.
Thank you!
I've trying to figure out something that I would like to request your help with. For a converging nozzle in a single inlet and single exit control volume; if you know the static pressure at the inlet to the nozzle and the outlet to the nozzle, how would you go about determining the mass flow. Assume ideal air conditions non compressible flow. Is there a simple equation for that? I'm trying to figure out how one would be able to instrument such nozzle to determine if there are obstructions downstream of the nozzle.
Thank you!
RE: Gas Turbine Inlet Flow with Static Pressure Taps
"...when logic, and proportion, have fallen, sloppy dead..." Grace Slick
RE: Gas Turbine Inlet Flow with Static Pressure Taps
You need to check this reference and look at the nozzle type of geometry for flow element:
Flow Measurement Engineering Handbook, by Richard W. Miller.
Otherwise, my guess is that if there is an obstruction downstream, it would create a back pressure which can be detected by reduction of flow thru the nozzle from a departing value. But if your pressure upstream increases at the same time, say because you can control an equipment that does this, then the flow would go up again even in presence of the obstruction. Would that make sense?
RE: Gas Turbine Inlet Flow with Static Pressure Taps
Are you referring to the main inlet of turbine or just doing a flow measurement on a certain pipe equipped with a nozzle?
RE: Gas Turbine Inlet Flow with Static Pressure Taps