3
1
2
HFE 06
100%
--
HFE 08
100%
--
HFE 12
100%
--
HFE 16
100%
--
HFE 20
100%
--
HFE 24
50%
50%
HFE 33
50%
50%
HFE 42
50%
50%
HFS 60
50%
50%
HFS 80
50%
50%
HFS 100
50%
50%
CCF
IPCF
WFCF
PDCF
0
0
1,00
1,00
1,00
1,00
10
-3.2
0,985
0,985
1,02
1,08
20
-7.8
0,980
0,990
1,04
1,12
30
-14.1
0,970
0,980
1,08
1,18
40
-22.3
0,960
0,970
1,14
1,25
3
5
8
CCCP
0,99
1
1,02
IPCF
0,99
1
1,01
0.00005
0.0001
0.0002
CCCP
1
0,98
0,94
IPCF
1
0,98
0,95
TECHNICAL SPECIFICATIONS
3.6
COMPRESSOR PARTIALISATION STEPS
NUMBER OF COMPRESSORS
Model
3.7 CORRECTION
FACTORS
3.7.1
Glycol use correction factors
Percentage of
ethylene glycol (%)
Freezing
point (°C)
CCF: Cooling capacity correction factor.
IPCF: Power consumption correction factor.
WFCF: Water flow rate correction factor.
PDCF: Pressure drop correction factor.
The correction factors of the water flow rate and the pressure drops must be applied to the values obtained without the use of glycol. The
water flow rate correction factor is calculated in such a way as to maintain the same temperature difference that would be obtained without
the use of glycol. The pressure drops correction factor is applied to the correct water flow value of the water flow correction factor.
3.7.2
Different correction factors t
Water temp. difference (°C)
CCCP = Power correction factor IPCF = Power consumption correction factor
3.7.3
Fouling factor different correction factors
Fouling factor
CCCP = Power correction factor IPCF = Power consumption correction factor
Rev. C 09-2020
MTEC.3810.GB-C-1 Operation and maintenance manual serie WZA English
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