• demesisx
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    5 days ago
    the real answer from reddit

    This is a differential flowmeter used for measuring CO2 emissions in Lowstream Refinery. Its a DN1400 pipe with flow disturbing element, and measures pressure difference infront of and behind the cone, pressure difference is then electronically calculated into flow rate. Accuracy is 0,5% and saves milions of euros every year on emission allowances. All you need to do is input the density of the gas.

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