Dantherm BasX, Руководство по обслуживанию

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Flow calculation for plug fans
Flow calculation BasX modules with plug fans are fitted with a measuring device on the suction side and
the inlet ring of the fan.
The flow through the fan can be calculated by measuring the differential pressure
between these two points. The formula is shown below.
Flow calculation The connexion between flow and differential pressure is as follows:
w
p K V
∆ ∗ =
Symbol Description Unit
V Measured flow [m
3
/h]
w
p
∆
Pressure difference [Pa]
K Constant specifically valid for each single unit size
(see table below under ”K-factor”) -
K-factor K for each single unit size can be found in the table below:
Type K-Factor
BasX 2 60
BasX 4 121
BasX 6 154
BasX 10 252
BasX 14 381