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12 TRG-TRC013-EN
notes
period one
Fan Performance
When a series of points is plotted, a curve can be drawn. The resulting curve
graphically illustrates the performance of this fan when it is operated at a
constant speed.
Notice that the curve extends from blocked-tight static pressure, with a
corresponding zero airflow, to wide-open airflow, with a corresponding zero
static pressure.
blocked-tight
blocked-tight
static pressure
static pressure
wide-open
wide-open
airflow
airflow
1
,
1
0
0
r
p
m
1
,
1
0
0
r
p
m
airflow
airflow
static pressure
static pressure
Fan Performance Curve
Figure 18