The Colebrook-White equation is recommended for use by those unfamiliar with pipeline flow equations. It will produce the greatest consistency of accuracy over the widest possible range of variables. The Colebrook Equation has good accurate results for lower flow rates (150-250 MMSCFD); However, larger errors exist above a 250 MMSCFD flow rate.
The friction factor is solved using the Newton-Raphson method.
๐ โ Friction Factor
D โ Inside Pipe Diameter[in]
๐ โ Pipe Roughness[in]
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๐น โ Transmission Factor
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๐ โ Flow Rate (FT3/day)
๐ถ๐ โ 38.774
๐๐ โTemperature Base (ยฐR)
๐๐ โ Pressure Base (psi)
๐๐ โ Gas Flowing Temperature (ยฐR)
๐ท โ Internal Diameter (in)
๐น โ Transmission Factor
๐ โ Pipe Roughness
๐1 โ Upstream Pressure (psi)
๐2 โ Downstream Pressure (psi)
๐บ โ Gas Specific Gravity
๐ โ Compressibility Factor
Le โ Pipe Segment Length including Expansion (mi)
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๐ โ Elevation adjustment parameter
CS โ 0.0375
๐ โ Compressibility Factor
๐๐ โ Gas Flowing Temperature (ยฐR)
โ๐ป๐บ โ Change in Elevation (ft)
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๐ฟ๐ โ Pipe Segment Length including Expansion (mi)
๐ โ Elevation adjustment parameter
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๐ โ Velocity (ft/sec)
๐โ โ Volumetric flow rate (scf/hr)
๐ท โ Internal Diameter (in)
๐๐๐ฃ๐ โ Average Pipeline Pressure (psia)
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