Friction Drop for Compressible Natural Gas in Long Pipe Lines

Friction Drop for Compressible Natural Gas in Long Pipe Lines 

Weymouth s formula [57] has friction established as a function of diameter and may be solved by using alignment charts. 

The Weymouth formula is also expressed (at standard conditions) as  

Dunning [40] recommends this formula (from Reference [43]) for 4 to 24-inch diameter lines with specific gravity of gas near 0.60, and actual mean velocities from 15 to 30 feet per second at temperature near 60°F. 

The Bureau of Mines report states that minor corrections for bends, tees, and even compressibility are unnecessary due to the greater uncertainties in actual line conditions. Their checks with the Weymouth relation omitted these corrections. The relation with pres- 

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