Problem: Starting with an air compressor with a known free air displacement, how long would it take to fill a 5 gallon air tank to 95psig? See below for more detail.
Method: Use (PV^n = constant) to convert free air displacement (in standard atmosphere units SCFM) into resulting pressure built...
I need to size a valve to relieve air from a pressurized tank to drop pressure from 16psia to 14.76psia within 5 seconds. As the outlet pressure is greater than .5283 of the inlet pressure, this will occur as non-choked (i.e. sub-critical) flow. (Note that specification is not critical to...
Does orifice diameter affect critical pressure through a converging nozzle, or is it entirely dependent on the ratio of inlet and outlet pressure? (assume Isentropic flow of air). References from other forum posts listed at the bottom.
I've seen many references for testing for choked flow...
I'd like advice on using fixed-alignment bushings in a parallel shaft application.
McMaster says that fixed-alignment bushings are used in parallel shaft applications, but I don't see how that can be done. I end up with a positional tolerance of .0006" for a 3/16" shaft...
This is a question about design intent vs. matching the steps a shop would use to create the part.
The example is a pin used to support a "table". The pin has a shoulder that is cut short to prevent it from showing through the top of the "table".
As the attached drawing shows, i've...
