Turbomachinery Engineers

Gas Flex
A BWR Gas Properties Program for Gas Compressor Performance
Gas Flex is an easy to use PC based Windows program that  uses Benedict-Webb-Rubin (BWR) equations of state for accurate compressor performance analysis.

Gas Flex is a subprogram of Flex Live

Program features include:
State Point Calculation - Input a pressure and temperature, Gas Flex calculates enthalpy, entropy, saturation point, specific volume, sonic velocity, Cp , K value, and dynamic viscosity.
Saturation Point Calculation - Input a pressure or temperature, Gas Flex calculates the corresponding saturation temperature or pressure.
Compressor Estimation - Input flow rate, inlet conditions, & discharge pressure, Gas Flex calculates inlet and discharge volume flow, polytropic head, discharge temperature, and gas power for multi-section compressors including sideloads.
Compressor Test Data - Input field or factory test data, Gas Flex calculates overall compressor performance including flow rates, power, and efficiency. Note - this option can also be used to verify compressor performance in new proposals.
Detailed Printout - includes all relevant pressures, temperatures, enthalpies, specific volume, performance calculations and field test results.
Control of Units - for any input or output item. All of the commonly used units (e. g. psia, Bar a, kg/cm2 a, etc.) are available.
Pull Down Windows are used for ease of program operation.

Presently, more than 90 gases are included in Gas Flex.  Most of the commonly used hydrocarbons plus nitrogen, oxygen, air, refrigerants including R-134, and water vapor are available.

Data Analysis
For manual plotting of the data, use the following Excel Worksheet for plotting the results of your analysis. The worksheet uses 5 points from the compressor manufacturers curve as a base line. The operating data is fan law corrected for comparison to the design curve.
Excel Worksheet Download

Gas Flex
Computer System Requirements:
Windows based Server, PC or compatible computer.
Windows 10.

Gas Flex Troubleshooting

For help in resolving any difficulties with Gas Flex, or any questions regarding the Gas Flex or any other Flex program, contact the Flexware, Inc. Service Office (This email address is being protected from spambots. You need JavaScript enabled to view it.) or your nearest Distributor.

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