Airwell SWS 1602 HFС 407C [6/48] Correction factors
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Airwell SWS 1602 HFС 407C [6/48] Correction factors

Airwell SWS 1602 HFС 407C [6/48] Correction factors
Page 6
Correction Factors
(1) Factors applicable only for glycol solution leaving temperature ≥ 7 °C. For temperatures < 7 °C, refer to table "Low temperature operation
correction factors".
(2) Factors applicable only for glycol solution leaving temperature ≥ 5 °C. For temperatures < 5 °C, refer to table "Pressure drop correction
factors for low temperature operation".
Fouling factors
EVAPORATOR CONDENSER
Fouling factor
(m
2
.°C/kW)
Cooling capacity
factor
Power input factor
Fouling factor
(m
2
.°C/kW)
Cooling capacity
factor
Power input factor
0.044 1.000 1.000 0.044 1.000 1.000
0.088 0.987 0.995 0.088 0.987 1.023
0.176 0.964 0.985 0.176 0.955 1.068
0.352 0.915 0.962 0.352 0.910 1.135
Ethylene glycol solution correction factors
Ethylene glycol percent by weight % 10 20 30 35 40
Freezing point
°C -4 -10 -17 -21 -25
Cooling capacity correction factors (1) 0.995 0.985 0.97 0.963 0.955
Power input correction factors (1)
0.998 0.995 0.985 0.983 0.98
Flow rate correction factors 1.015 1.05 1.085 1.123 1.16
Pressure drop correction factors (2)
1.07 1.16 1.235 1.283 1.33
Low temperature operation correction factors
Leaving water temperature °C 7 4 2 0 -2 -4 -6 -8
Minimum ethylene glycol percent % 0 10 10 20 20 30 30 35
Cooling capacity correction factors 1 0.887 0.816 0.748 0.685 0.624 0.568 0.513
Power input correction factors
1 0.94 0.9 0.865 0.826 0.788 0.753 0.718
Pressure drop correction factors for low temperature operation
Ethylene glycol percent by weight Glycol solution leaving temperature (°C) Pressure drop correction factors
10%
5 1.071
4 1.076
3 1.081
2 1.085
20%
1 1.193
0 1.200
-1 1.208
-2 1.215
30%
-3 1.299
-4 1.306
-5 1.320
-6 1.333

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