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16 TRG-TRC013-EN
notes
period one
Fan Performance
Fan manufacturers may present their performance data in graphical and/or
tabular form. Similar to using the fan curve, by knowing the desired airflow and
pressure-producing capability of the fan, the table can be used to determine the
fan’s speed and input power requirement.
For example, assume an application requires 6,800 cfm [3,210 L/s] at a static
pressure of 2.5 in. H
2
O [622.75 Pa]. Using this sample table, this particular fan
requires a rotational speed of 821 rpm and 4.25 hp [3.17 kW] of power to meet
the requirements.
Tabular Performance Data
Figure 24