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.

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
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 XP, Vista, or 7.

Gas Flex® Troubleshooting

Gas Flex® will not install
Verify that all programs other than Program Manager are turned off.
If you are on a network, reboot your computer and do not connect until the install is complete.

Gas Flex® will not execute or run
Verify that the Hasp Key is properly installed in the USB port. Remove and reinstall to assure good contact is made.
Follow directions in the installation directions.
Be sure that your computer has the proper hardware requirements. See the Introduction section for details.

Printer does not function
Further help
For further 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. Please have your software serial number available prior to calling. The serial number can be found in the product literature, or on the Hasp key attached to the USB port.

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