Natural Gas Pipeline Flow Calculations

Natural gas pipeline flow calculations are discussed and illustrated with examples. The Weymouth equation, Panhandle A equation, Panhandle B equation, and Darcy-Weisbach friction factor equation are discussed for use in natural gas pipeline flow calculations. Natural gas properties needed for the calculations are presented and discussed, including equations for calculating the properties. The properties discussed include density, viscosity, specific gravity, average pipeline pressure, and compressibility factor (as calculated by the CNGA equation). Numerous worked examples are included for gas property calculations and for pipeline flow calculations using all four equations.