EN
21.11 - 6755517_05
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10. GLYCOL SOLUTIONS
ETHYLENE GLYCOL
COOLING MODE
CORRECTION FACTOR WITH ETHYLENE GLYCOL - COOLING MODE
Freezing Point
°C
0
-3.63
-6.10
-8.93
-12.11
-15.74
-19.94
-24.79
-30.44
-37.10
Percent ethylene glycol
%
0
10
15
20
25
30
35
40
45
50
Qwc
-
1.000
1.033
1.040
1.049
1.060
1.072
1.086
1.102
1.120
1.141
Pc
-
1.000
0.990
0.985
0.980
0.975
0.970
0.965
0.960
0.955
0.950
Pa
-
1.000
0.996
0.994
0.992
0.990
0.988
0.986
0.984
0.982
0.980
Dp
-
1.000
1.109
1.157
1.209
1.268
1.336
1.414
1.505
1.609
1.728
Average water temperature = 9.5 °C
HEATING MODE
CORRECTION FACTOR WITH ETHYLENE GLYCOL - HEATING MODE
Freezing Point
°C
0
-3.63
-6.10
-8.93
-12.11
-15.74
-19.94
-24.79
-30.44
-37.10
Percent ethylene glycol
%
0
10
15
20
25
30
35
40
45
50
Qwh
-
1.000
1.027
1.038
1.050
1.063
1.078
1.095
1.114
1.135
1.158
Ph
-
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
Pa
-
1.000
1.002
1.003
1.004
1.005
1.007
1.008
1.010
1.012
1.015
Dp
-
1.000
1.087
1.128
1.175
1.227
1.286
1.353
1.428
1.514
1.610
Average water temperature = 42.5 °C
Qwc
: Corrective factor of fl ow rates (middle water temperatur 9.5°C)
Qwh:
Corrective factor of fl ow rates (middle water temperatur 42.5°C)
Pc
: Corrective factor of cooling capacity
Ph
: Corrective factor of heating capacity
Pa
: Corrective factor of imput power
Dp
: Corrective factor of pressure drop
PROPYLENE GLYCOL
COOLING MODE
CORRECTION FACTOR WITH PROPILENE GLYCOL - COOLING MODE
Freezing Point
°C
0
-3.43
-5.30
-7.44
-9.98
-13.08
-16.86
-21.47
-27.04
-33.72
Percent PROPILENE glycol
%
0
10
15
20
25
30
35
40
45
50
Qwc
-
1.000
1.007
1.006
1.007
1.010
1.015
1.022
1.032
1.044
1.058
Pc
-
1.000
0.985
0.978
0.970
0.963
0.955
0.947
0.939
0.932
0.924
Pa
-
1.000
0.996
0.994
0.992
0.990
0.988
0.986
0.984
0.982
0.980
Dp
-
1.000
1.082
1.102
1.143
1.201
1.271
1.351
1.435
1.520
1.602
Average water temperature = 9.5 °C
HEATING MODE
CORRECTION FACTOR WITH PROPILENE GLYCOL - HEATING MODE
Freezing Point
°C
0
-3.43
-5.30
-7.44
-9.98
-13.08
-16.86
-21.47
-27.04
-33.72
Percent PROPILENE glycol
%
0
10
15
20
25
30
35
40
45
50
Qwh
-
1.000
1.008
1.014
1.021
1.030
1.042
1.055
1.071
1.090
1.112
Ph
-
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
Pa
-
1.000
1.003
1.004
1.005
1.007
1.009
1.011
1.014
1.018
1.023
Dp
-
1.000
1.050
1.077
1.111
1.153
1.202
1.258
1.321
1.390
1.467
Average water temperature =42.5 °C
Qwc
: Corrective factor of fl ow rates (middle water temperatur 9.5°C)
Qwh:
Corrective factor of fl ow rates (middle water temperatur 42.5°C)
Pc
: Corrective factor of cooling capacity
Ph
: Corrective factor of heating capacity
Pa
: Corrective factor of imput power
Dp
: Corrective factor of pressure drop
Do not fi ll up the hydraulic system by glycol near the suction of the pump. High concentration of glycol could stuck the pump. Do not use the pump to mix water
and glycol