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GPS-X Technical Reference

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Suspended Growth Models 200<br />

Entering Airflow<br />

The gas flow rate is entered at a given standard condition of 1 atm and 20°C.<br />

Standard Oxygen Transfer Rate (SOTE) in g/d<br />

The SOTR is calculated using Equation 6.65:<br />

Equation 6.65<br />

where:<br />

molfr O2 = mole fraction of O 2 in feed gas (mole O 2/mole gas)<br />

MW O2 = molecular weight of O 2 (32 g/mole O 2)<br />

P gas = density of feed gas (g/m 3 )<br />

MW gas<br />

= average molecular weight of gas (g/mole gas)<br />

Estimate OTR<br />

The OTR is calculated using Equation 6.24:<br />

Equation 6.24<br />

Estimate K La at Standard Condition<br />

Equation 6.66<br />

<strong>GPS</strong>-X <strong>Technical</strong> <strong>Reference</strong>

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