Parker NX Series, Technical Manual

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83 - PVD 3663_GB_NX_March 2017.Docx
Main formulas
p
C
n dissipatio Power
rate Flow
*
60 * _
_
 


With:
Flow rate [l/min]
Power_dissipation [W]

° Gradient inlet-outlet [°C]
Cp thermal specific capacity of the water as coolant [J/kg°K]
( Cp depends on the % glycol concentration please see below)
Thermal specific capacity Cp according to % glycol concentration and
temperature
We have considered an average temperature of the coolant of 30°C.
Glycol concentration
[%]
Average temperature of the water as
coolant [°C]
Thermal specific capacity of the
water Cp [J/kg°K]
0 30 4176
30 30 3755
40 30 3551
50 30 3354