Gas Pipeline Fluid Velocity And Flow Rate

Calculate single phase gas pipeline density and flowrate.

The gas specific gravity is the ratio of gas density over the density of dry air at base temperature and pressure. The compressibility factor is assumed to equal 1 at the base conditions. The gas specific gravity is proportional to the gas molar mass.

Tool Input

• schdtype : Pipe Schedule Type
• diamtype : Pipe Diameter Type
  • ODu : User Defined Outside Diameter
  • IDu : User Defined Inside Diameter
• wtntype : Wall Thickness Type
  • tnu : User Defined Wall Thickness
• fluidtype : Gas Type
  • SGu : User Defined Gas Specific Gravity
• voltype : Gas Flowrate Type
  • Qfu : User Defined Gas Volume Flow Rate
  • Mfu : User Defined Gas Mass Flow Rate
  • Ngu : User Defined Gas Mole Flow Rate
  • Vfu : User Defined Gas Velocity
• P : Gas Pressure
• T : Gas Temperature
• Z : Gas Compressibility Factor

Tool Output

• ρ : Gas Density
• ID : Inside Diameter
• M : Gas Molar Mass
• Mf : Gas Mass Flowrate
• Ng : Gas Mole Flowrate
• Qf : Gas Volume Flowrate (At T P)
• R : Gas Constant
• SG : Gas Specific Gravity
• Vf : Gas Velocity
• vg : Gas Mole Volume (At T P)

Calculate single phase gas properties for common gases: argon Ar, n-decane C10H22, ethylene C2H4, ethyl chloride C2H5Cl, ethane C2H6, propene C3H6, propane C3H8, iso-butane C4H10, n-butane C4H10, iso-pentane C5H12, n-pentane C5H12, n-hexane C6H14, n-heptane C7H16, n-octane C8H18, n-nonane C9H20, methyl chloride CH3Cl, methane CH4, chlorine Cl2, carbon monoxide CO, carbon dioxide CO2, hydrogen H2, steam H2O, hydrogen sulphide H2S, hydrogen chloride HCl, helium He, krypton Kr, nitrogen N2, air N2+O2, ammonia NH3, oxygen O2, sulphur dioxide SO2, xenon Xe.

Properties include specific heat constant pressure, specific heat constant volume, specific heat ratio, molar mass, gas constant, gas specific gravity, critical point temperature, critical point pressure, and accentric factor.

Use the Result Table option to display a table of properties versus gas type.

Tool Input

• fluidtype : Fluid Type
  • Cpu : User Defined Specific Heat Constant Pressure
  • Cvu : User Defined Specific Heat Constant Volume
  • γu : User Defined Specific Heat Ratio
  • SGu : User Defined Specific Gravity
  • Pcu : User Defined Critical Point Pressure
  • Tcu : User Defined Critical Point Temperature
  • ωu : User Defined Accentric Factor

Tool Output

• γ : Specific Heat Ratio
• ω : Accentric Factor
• Cp : Fluid Heat Capacity Constant Pressure
• Cv : Fluid Heat Capacity Constant Volume
• Pc : Critical Point Pressure
• R : Gas Constant
• SG : Gas Specific Gravity Relative To Air
• Tc : Critical Point Temperature
• mm : Fluid Molar Mass