Gas release rate is from peak initial release rate from single side and both sides. Some of the limiting factors include effective hole diameter and pressure differential.
ππ β Peak Initial Release Rate from Single Side of Pipeline Rupture[lbm/sec]
πΆπ β Discharge Coefficient
π β Specific Heat Ratio of Gas
π
β Universal Gas Constant=1545.3[ft β lb/lb β mol βΒ°R]
π β Gas Temperature[Β°R]
π β Gas Molecular Weight
π β Effective Hole Diameter β LineDiameter[in]
π β Pressure DifferentialβLine Pressure[psi]
For the guillotine-type failure of pipeline rate release, the effective release:
πβRelease Rate Decay Factor = 0.25β0.
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