How GasProps2008.DLL can help you solve problems
- Sonic Prover Calculations --- the calculated speed of sound times the cross-sectional area at the minimum diameter of a sonic prover is the volume flow rate
- Ultrasonic Meter Speed of Sound Validation --- check the calculations of the speed of sound used by the ultrasonic meter to calculate flow rate
- Flow Computer Properties Validation --- check the gas properties calculations of an electronic flow meter
- Joule-Thomson Temperature Drop Calculations --- – calculate temperature drops across valves and pressure regulators to assess the potential for liquid water and hydrates
- Compressor Troubleshooting Calculations --- compare actual operating conditions versus design conditions to determine deterioration in efficiency, increased power requirements, increased internal recycle, and if discharge temperature exceeds lubricant maximum
- Heat Exchanger Design Calculations --- calculate natural gas heat exchanger duties and temperature profiles (GasProps2008 also can be used for air properties, and so for air coolers, and also for combustion gas, and so for heaters using combustion gas)
- Heat Exchanger Operation and Troubleshooting Calculations --- monitor heat exchanger efficiency, determine changes in heat transfer coefficient and fouling factor, detect leaks
GasProps2008 Key Features
Outputs- Speed of Sound
- Nozzle Critical Flow Factor
- Joule-Thomson coefficient
- Isentropic Exponent
- Specific Enthalpy
- Specific Entropy
- Molar Density
- Mass Density
- Relative Density (ideal gas)
- Relative Density (real gas)
- Zb, Compressibility factor at Tb,Pb
- Zf, Compressibility factor at Tf,Pf
- Square Root of (Zb/Zf)
- Molecular Weight
- Cp, (ideal gas), Ideal Gas Heat Capacity
- Cp, Const. Pres. Heat Capacity
- Cv, Const. Vol. Heat Capacity
- Cp/Cv, Heat Capacity Ratio
- Specific Enthalpy (ideal gas)
- Molar Density at Tb,Pb
- Mass Density at Tb,Pb
GasProps2008.DLL replaces the product GasProps.DLL, which originally was released in 2003. GasProps2008.DLL is computationally more efficient that the original GasProps.DLL and provides more accurate Joule-Thomson coefficient calculations. Users accustomed to spreadsheet calculations using GasProps.DLL can easily convert an existing spreadsheet to GasProps2008.DLL simply by replacing the old macro with a new macro which is provided.
Note: GasProps2008.DLL was developed explicitly for use with Excel XP and has been used successfully with Excel 2007. GasProps2008 can be used with PCs using Windows versions Vista, XP, or 2000
Why GasProps2008 was developed
The suggestion to provide gas properties calculations in a spreadsheet format was made in 2002 by Jim Witte of El Paso Corporation to Ali Quraishi of the American Gas Association around the time that AGA Report No. 10 was in final draft. Starting with the source code developed by Warren Peterson of Transcanada Pipelines, Ken Starling, SAI founder, developed the GasProps software. Because of Jim Witte’s desire to have the Joule-Thomson coefficient included, a JT algorithm was developed for GasProps.
Buy Now
| Number of computers in one company | Fee | Buy Now |
|---|---|---|
| 1 Computer | $2,000 |  |
| 2 Computers | $3,000 | |
| 3 Computers | $4,000 | |
| 4 Computers | $5,000 | |
*Licenses for 5 or more licensees (or company-wide site licenses at $16,000) can be purchased upon request to sai@starlingassoc.com.