System and method for leak rate testing during adiabatic cooling
The present invention is related to leak rate testing, and is more specifically related to determining the leak rate of a pressurized device during the period where the pressurized gas in the device is undergoing adiabatic cooling. A system for determining a leak rate of a device during an adiabatic...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
25.05.2004
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| Online Access | Get full text |
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| Summary: | The present invention is related to leak rate testing, and is more specifically related to determining the leak rate of a pressurized device during the period where the pressurized gas in the device is undergoing adiabatic cooling.
A system for determining a leak rate of a device during an adiabatic cooling phase is provided. The system includes a leak rate training system receiving leak rate calibration data, such as pressure data or mass flow data for a device having a known leakage rate. The leak rate training system generates an adiabatic cooling model from the leak rate calibration data, such as by solving a finite difference equation for one or more unknown process variables that are dependent on the adiabatic cooling parameters of the device. The system further includes a leak rate detection system receiving the adiabatic cooling model and leak rate data and determining a leak rate component of the leak rate data using the adiabatic cooling model, such as by using the variable values determined through solving the finite difference model to interpolate between the leak rate calibration data that was gathered using known leakage rates. |
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