RAAL Brazed Plates Heat Exchangers - RAAL - #9

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Text version of the page
Oil-Water Brazed Plates Cooler Type - RP 310x250 Series Performance Charts
310x250 Performance chart
9.5 8.5 7.5 6.5 5.5 4.5 3.5 2.5 1.5
a Q 1 /rvi
♦ 3 l/min 8 l/min
^^^^
• 16 l/min A 24 l/min
----
-—
3
o
u
OH
«
3
8
13 18
Oil [l/min/tube]
23
28
Selection procedure
The diagrams have been issued in the ETD=400C condition (oil inlet 1300C and water 900C) The configuration of the channels is 1:1
The heat rejection for a plate heat exchanger with "no_of_tube" oil tubes can be determined following the steps described below:
1. first determine the water flow rate per tube ( water_flow / (no_of_tube+1) )
2. second determine the oil flow rate per tube ( oil_flow / no_of_tube )
3. from the chart select the equivalence heat rejection per tube
4. multiply the heat rejection with the no. of oil tubes (heat x no_of_tube) to give the actual heat rejection.
Oil Pressure drop
Water Pressure drop
700 600 500 400 300
70 60 50 40 30 20 10
0
/
/
/
/
/
/
re n
E
Q.
O i_
3
in in
0.
a
n E
p o
r
d
re
u s s
re
P
0
10
20
30
1020
Oil [l/min/tube]
30
Water [l/min/tube]

pageCatalog pdf di En 2012-05-22-31