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Barrel Pressure Drop Measurements

Barrel Pressure Drop Measurements. Purpose: Measure pressure in module due to purging gas flow Module could bulge if pressure too high Method: Module has 4 purging gas holes: Use 2 for gas flow, 2 for pressure sensors Measure pressure near input and output at 3 fixed flow rates of N 2

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Barrel Pressure Drop Measurements

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  1. Barrel Pressure Drop Measurements • Purpose: • Measure pressure in module due to purging gas flow • Module could bulge if pressure too high • Method: • Module has 4 purging gas holes: • Use 2 for gas flow, 2 for pressure sensors • Measure pressure near input and output at 3 fixed flow rates of N2 • ~0.9 l/min, 3.5 l/min, 6.6 l/min

  2. Barrel Pressure Drop Measurements • Duke setup:

  3. Barrel Pressure Drop Measurements • Duke setup – detail of pressure sensor:

  4. Barrel Pressure Drop Measurements • Results:

  5. Barrel Pressure Drop Measurements • Interpolate to 1.5 liters/min N2: • (with CO2, pressures ~ 15% lower) • Type 3 module with nothing on output: • 0.54 mbar near input • 0.04 mbar near output • Effect of button attached to output: • +0.20 mbar near input • +0.22 mbar near output • Effect of gas fitting attached to output: • +0.24 mbar near input • +0.32 mbar near output

  6. Barrel Pressure Drop Measurements • Example of stackup:

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