Recent content by engineer-1

... bear in mind that the term -k/(k − 1).. in the expression [ 2/(k + 1) ]-k/(k − 1) means "to the power of". It just didn't paste correctly.

Thanks for the input. Now. We know the flow will be choked based on [ 2/(k + 1) ]-k/(k − 1) which for say air (k=1.4) yields 1.89. This is the minimum pressure ratio (e.g. upstream P to P discharge) when we model using nozzle theory. In this case this pressure ratio is 12. Now typically...

Greetings to all in this fine community, If you are familiar with Crane Tech Paper 410, there's an equation to calculate gas flow rate in SCFH. It takes into account pipe losses, pipe diameter, and inlet and outlet pressures. q'h = 40,700*Y*(d^2)*((DP*P'1)/(K*T1*Sg))^0.5 q'h = SCFH d = pipe...