Pipeng Toolbox : Gas Pipe Dose Rate Calculators Blank User
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Gas Pipeline Chemical Dose Rate

Calculate single phase gas pipeline, liquid chemical dose volume fraction, mass fraction, dose volume over gas mole ratio, dose mass over gas mole ratio, and average fluid density.

`Xv = (Vd) / (Vf) `
`Mv = (Md) / (Mf) `
`Rv = (Vg.Xv) / (1 - Xv) `
`Rm = Rv.ρd `
`Vf = Vd + Vg `
`Mf = Md + Mg `
`ρf = Xv.ρd + (1-Xv) ρg `
`Vg = (m Z Ro T) / P `

where :

Xv = dose volume fraction
Mv = dose mass fraction
Rv = dose volume ratio (dose volume:liquid volume)
Rm = dose mass ratio (dose mass:liquid mass)
Vf = total fluid volume
Vd = dose volume
Vg = gas volume (before dosing)
Mf = total fluid mass
Md = dose mass
Mg = gas mass (before dosing)
Vg = gas volume
m = gas moles
P = gas pressure
T = gas temperature
ρf = average fluid density (dosed)
ρd = dose chemical density
ρg= gas density (before dosing)

The average fluid density includes the dosing chemical (combined undosed liquid and dose chemical). The dose chemical is assumed to remain in the liquid phase. The dose quantity can be calculated from either the gas quantity (before dosing), or the total fluid quantity (after dosing). The dose rate can be calculated from either the gas flowrate (before dosing), or the total fluid flowrate:

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CALCULATOR : Single Phase Gas Pipeline Dose Rate [FREE]   ±

Calculate the liquid dose rate in a single phase gas.

The dose rate can be calculated from the dose volume fraction, the dose mass fraction or the liquid to gas ratio. The average fluid density includes the dose chemical.

Tool Input

  • dosetype : Dose Rate Type
    • Xvu : User Defined Dose Volume Fraction
    • Xmu : User Defined Dose Mass Fraction
    • Rvu : User Defined Dose Volume Over Gas Moles Ratio
    • Rmu : User Defined Dose Mass Over Gas Moles Ratio
  • ρd : Dose Chemical Density
  • P : Fluid Pressure
  • T : Fluid Temperature
  • Z : Gas Compressibility Factor
  • SG : Gas Specific Gravity

Tool Output

  • ρf : Fluid Average Density
  • ρg : Gas Density (At T P)
  • Rm : Dose Mass Over Gas Moles Ratio
  • Rv : Dose Volume Over Gas Moles Ratio
  • Xm : Dose Mass Fraction
  • Xv : Dose Volume Fraction
  • vg : Gas Mole Volume (At T P)

CALCULATOR : Single Phase Gas Pipeline Dose Rate And Volume [FREE]   ±

Calculate the liquid dose rate and volume in a single phase gas pipeline.

The dose rate can be calculated from the dose volume fraction, the dose mass fraction or the liquid to gas ratio. The average fluid density includes the dose chemical. The dose volume can be calculated for the gas phase, the total fluid (including the dose chemical), or the pipeline length.

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
  • dosetype : Dose Rate Type
    • Xvu : User Defined Dose Volume Fraction
    • Xmu : User Defined Dose Mass Fraction
    • Rvu : User Defined Dose Volume Over Gas Moles Ratio
    • Rmu : User Defined Dose Mass Over Gas Moles Ratio
  • voltype : Fluid Volume Type
    • Vgu : User Defined Gas Volume
    • Mgu : User Defined Gas Mass
    • Ngu : User Defined Gas Moles
    • Vfu : User Defined Total Fluid Volume
    • Mfu : User Defined Total Fluid Mass
    • Lu : User Defined Pipeline Length
  • ρd : Dose Chemical Density
  • P : Fluid Pressure
  • T : Fluid Temperature
  • Z : Gas Compressibility Factor
  • SG : Gas Specific Gravity

Tool Output

  • ρf : Fluid Average Density
  • ρg : Gas Density (At T P)
  • ID : Inside Diameter
  • L : Pipe Length
  • Md : Dose Mass
  • Mf : Total Fluid Mass
  • Mg : Gas Mass
  • Ng : Gas Moles
  • Rm : Dose Mass Over Gas Moles Ratio
  • Rv : Dose Volume Over Gas Moles Ratio
  • Vd : Dose Volume
  • Vf : Total Fluid Volume
  • Vg : Gas Volume
  • Xm : Dose Mass Fraction
  • Xv : Dose Volume Fraction
  • vg : Gas Mole Volume (At T P)

CALCULATOR : Single Phase Gas Pipeline Dose Rate And Flow Rate [PLUS]   ±

Calculate the liquid dose rate and volume flowrate in a single phase gas pipeline.

The dose rate can be calculated from the dose volume fraction, the dose mass fraction or the liquid to gas ratio. The average fluid density includes the dose chemical. The dose volume flowrate can be calculated for the gas phase or the total fluid (including the dose chemical).

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
  • dosetype : Dose Rate Type
    • Xvu : User Defined Dose Volume Fraction
    • Xmu : User Defined Dose Mass Fraction
    • Rvu : User Defined Dose Volume Over Gas Moles Ratio
    • Rmu : User Defined Dose Mass Over Gas Moles Ratio
  • voltype : Fluid Volume Type
    • Qgu : User Defined Gas Volume Flow Rate
    • Mgu : User Defined Gas Mass Flow Rate
    • Vgu : User Defined Gas Superficial Velocity
    • Ngu : User Defined Gas Mole Flow Rate
    • Qfu : User Defined Total Volume Flow Rate
    • Mfu : User Defined Total Mass Flow Rate
    • Vlu : User Defined Total Fluid Velocity
  • ρd : Dose Chemical Density
  • P : Fluid Pressure
  • T : Fluid Temperature
  • Z : Gas Compressibility Factor
  • SG : Gas Specific Gravity

Tool Output

  • ρf : Fluid Average Density
  • ρg : Gas Density (At T P)
  • ID : Inside Diameter
  • Md : Dose Mass Flowrate
  • Mf : Total Fluid Mass Flowrate
  • Mg : Gas Mass Flowrate
  • Ng : Gas Mole Flowrate
  • Qd : Dose Volume Flowrate
  • Qf : Total Fluid Volume Flowrate
  • Qg : Gas Volume Flowrate
  • Rm : Dose Mass Over Gas Moles Ratio
  • Rv : Dose Volume Over Gas Moles Ratio
  • Vd : Superficial Dose Chemical Velocity
  • Vf : Total Fluid Velocity
  • Vg : Superficial Gas Velocity
  • Xm : Dose Mass Fraction
  • Xv : Dose Volume Fraction
  • vg : Gas Mole Volume (At T P)

CALCULATOR : Single Phase Gas Compressibility Factor [FREE]   ±

Calculate single phase gas density and compressibility factor from temperature and pressure, and gas properties for selected gases.

The gas compressibility factor is calculated from the critical point temperature, critical point temperature, and the accentric factor using either the Peng Robinson, Soave, Redlich Kwong or Van Der Waals equations of state (EOS). The compressibility factor calculation is valid for gas phase only. Use the Result Plot option to plot compressibility factor versus pressure and temperature, compressibility factor versus pressure and equation of state type, or compressibility factor versus temperature and equation of state type.

Tool Input

  • fluidtype : Fluid Type
    • SGu : User Defined Gas Specific Gravity
    • ωu : User Defined Acentric Factor
    • Pcu : User Defined Critical Pressure
    • Tcu : User Defined Critical Temperature
  • eostype : Equation Of State
    • Zu : User Defined Compressibility Factor
  • P : Fluid Pressure
  • T : Fluid Temperature

Tool Output

  • ρ : Fluid Density
  • ω : Accentric Factor
  • Pc : Critical Point Pressure
  • Pr : Reduced Pressure
  • SG : Gas Specific Gravity Relative To Air
  • Tc : Critical Point Temperature
  • Tr : Reduced Temperature
  • Vm : Molar Volume
  • Z : Compressibility Factor
  • cvg : Convergence Check
  • mw : Fluid Molar Mass

CALCULATOR : Single Phase Gas Property [FREE]   ±

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