17.01.2015 Views

GPS-X Technical Reference

GPS-X Technical Reference

GPS-X Technical Reference

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

201 Suspended Growth Models<br />

Estimate K La at Field Condition<br />

Equation 6.67<br />

Airflow at Standard Conditions in m 3 /d<br />

The gas flow is calculated using the following expression:<br />

Equation 6.68<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 Airflow Rate at Field Conditions<br />

The airflow at standard conditions is converted to field conditions using the ideal gas law:<br />

Equation 6.16<br />

where:<br />

T standard<br />

T field<br />

= air temperature at standard conditions<br />

= air temperature at field conditions (°C)<br />

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

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!