Calculate optimal pipe diameters for natural gas distribution systems
Featured: AGA Flow Equation, Panhandle A, and Weymouth Equation methods
The AGA (American Gas Association) flow equation is widely used for calculating gas flow through pipelines:
Q = C × (Tb/Pb) × (P12 - P22)0.5 × D2.5 × (1/√f)
Where:
Q = flow rate
C = constant
Tb = base temperature
Pb = base pressure
P1, P2 = inlet and outlet pressures
D = pipe diameter
f = friction factor
The Panhandle A equation is an empirical relationship for turbulent flow:
Q = 435.87 × (Tb/Pb)1.0788 × (P12 - P22)0.5394 × D2.6182 × E
Where:
E = efficiency factor
Other variables same as AGA equation