M07J40G8-00
21/07/08
page 49
INTERNAL EXCHANGER PRESSURE DROP
10
15
20
25
30
35
40 45 50
60
70
80 90
20
30
40
50
60
70
80
90
100
110
120
Q [l/s]
Δ
P
[
k
P
a
]
2
.1
60
2
.1
80
- 2
.1
90
- 2
.2
00
2
.2
40
2.
28
0
- 2
.3
00
- 2
.3
20
2.
34
0 -
2.3
60
2
.6
00
2.
44
0 -
2.4
80
2.
54
0
Qmin
[l/s]
Qmax
[l/s]
2.160
10.5
25.0
2.180
12.2
29.9
2.190
11.6
28.2
2.200
12.4
31.1
2.240
14.9
36.7
2.280
18.7
46.3
2.300
17.7
43.9
2.320
17.7
43.9
2.340
20.5
50.3
2.360
21.2
52.1
2.440
27.8
70.4
2.480
27.0
67.3
2.540
27.8
74.3
2.600
26.3
71.8
CORRECTION FACTOR FOR ANTIFREEZE SOLUTIONS
% ethylene glycol by weight
5%
10%
15%
20%
25%
30%
35%
40%
Freezing temperature
°C
-2.0
-3.9
-6.5
-8.9
-11.8
-15.6
-19.0
-23.4
Safety temperature
°C
3.0
1.0
-1.0
-4.0
-6.0
-10.0
-14.0
-19.0
Cooling Capacity Factor
Nr
0.995
0.990
0.985
0.981
0.977
0.974
0.971
0.968
Compressor input Factor
Nr
0.997
0.993
0.990
0.988
0.986
0.984
0.982
0.981
Internal exchanger Glycol solution flow Factor
Nr
1.003
1.010
1.020
1.033
1.050
1.072
1.095
1.124
Pressure drop Factor
Nr
1.029
1.060
1.090
1.118
1.149
1.182
1.211
1.243
FOULING CORRECTION FACTOR
INTERNAL EXCHANGER
m² °C/W
F1
FK1
0.44 x 10^(-4)
1.00
1.00
0.88 x 10^(-4)
0.97
0.99
1.76 x 10^(-4)
0.94
0.98
EXCHANGER OPERATING LIMITS
INTERNAL EXCHANGER
DPr (S - B)
DPw
kPa
kPa
CLIVET (C)
2450
2450
1050
PED (CE)
2450
2450
1050
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