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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
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



Barrel pressure drop measurements2
Barrel Pressure Drop Measurements

  • Duke setup – detail of pressure sensor:



Barrel pressure drop measurements4
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



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