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| HOW IS IT USED? |
Explanation |
| User Interface |
Excel in Windows |
| Customizable by User? |
Yes |
| Suggested User Level |
Engineer / Supervisor |
| English and SI Units |
Yes |
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| STANDARDS COVERED |
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| AGA Report No. 8 |
Yes |
| AGA Report No. 10 |
Yes |
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| CALCULATION |
Common Applications |
| Speed of Sound |
Ultrasonic meter verification calculations |
| Critical Flow Factor |
Critical flow prover calculations |
| Isentropic Exponent
Kappa |
Calculations of isentropic compression and expansion of
gas |
| Specific Enthalpy |
Heat exchanger calculations |
| Specific Entropy |
Compressor calculations |
| Molar Density D at Tf,Pf |
Conversion of volume flow rate at Tf,Pf to molar flow
rate |
| Mass Density Rho at Tf,Pf |
Conversion of mass flow rate to volume flow rate at Tf,Pf |
| Relative Density (ideal
gas) Gr (ideal gas) |
Molecular weight of gas divided by molecular weight of
air |
| Relative Density (real
gas) Gr (real gas) |
Density of gas divided by density of air at Tb,Pb |
| Zb Compressibility Factor
at Tb,Pb |
Flow rate conversions from flowing to base conditions |
| Zf Compressibility Factor
at Tf,Pf |
Flow rate conversions from flowing to base conditions |
| Square Root of (Zb/Zf)
Supercompressibility |
Orifice meter flow rate equation factor |
| Molecular Weight Molar
Mass |
Moles to mass units conversion factor (mass/mole) |
| Cp (ideal) Ideal Gas
Const. P, Heat Capacity |
Calculation of ideal gas enthalpy changes |
| Cp Const. Pres. Heat
Capacity |
Calculation of enthalpy changes at constant pressure |
| Cv Const. Vol. Heat
Capacity |
Calculation of enthalpy changes at constant volume |
| Cp/Cv Heat Capacity Ratio |
Used for adiabatic process calculations (no heat
transferred) |
| Specific Enthalpy (ideal
gas) |
Calculation of ideal gas enthalpy changes |
| Molar Density at TbPb |
Conversion of volume flow rate at Tb,Pb to molar flow
rate |
| Mass Density at TbPb |
Conversion of mass flow rate to volume flow rate at Tb,Pb |
| Joule-Thomson Coefficient |
Temperature drop for regulator and valve calculations. |
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