Technical data
9-8 Notes Regarding Application Rexroth IndraDyn H
DOK-MOTOR*-MBS-H******-PR02-EN-P
Zeit
Übertemperatur
Erwärmung mit
Anfangsübertemperatur = 0
Erwärmung mit Anfangsübertemperatur > 0
Abkühlung
ERWAERMUNG LSF.XLS
Endübertemperatur
t
th
63 %
Fig. 9-2: Heating up and cooling down of an electrical machine
Sizing the Cooling Circuit
Q
T
1
,
p
1
T
2
,
p
2
P
v
Q: Flow quantity
T
1
: Coolant inlet temperature
T
2
: Coolant outlet temperature
p
1
: Inlet pressure
p
2
: Outlet pressure
Fig. 9-3: Liquid-cooled component
12
TTT −=∆
T
1
: Coolant inlet temperature in K
T
2
: Coolant outlet temperature in K
∆T: Coolant temperature rise in K
Fig. 9-10: Coolant temperature rise in K
21
ppp −=∆
p
1
: Inlet pressure
p
2
: Outlet pressure
∆p: Pressure drop
Fig. 9-11: Pressure drop across traversed component
Coolant temperature rise
Pressure drop