1 symbols used, 2 data for the entry, 1 volume flow – Lenze DSD User Manual
Page 179: 2 pressure increase, 3 efficiency of the fan, 4 fan rated speed, 7applications
Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
179
7
Applications
7.19
Fan
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7.19.1.1
Symbols used
7.19.2
Data for the entry
7.19.2.1
Volume flow
7.19.2.2
Pressure increase
7.19.2.3
Efficiency of the fan
7.19.2.4
Fan rated speed
Symbol
Description
Dimension unit
J
add
Additional moment of inertia
kgm
2
M
App
Torque of the application
Nm
M
rated
Rated torque of the fan
Nm
n
rated
Rated speed of the fan
rpm
P
Power of the medium
kW
P
Vlt
Required power of the fan
kW
Q
Volume flow
m
3
/s
Δp
Pressure increase
N/m
2
η
Vlt
Efficiency of the fan
Symbol
Description
Q
Volume of the fluid to be transported per time unit
Symbol
Description
Δp
Pressure difference between intake and outlet
Symbol
Description
η
Vlt
Fan efficiency (see fan data sheet)
Symbol
Description
n
rated
Rated speed of the fan (see fan data sheet)