EDM WQL H RC

|
WQL-WQH-WQRC 20-190
18
Correction Factors (continued)
Table 5
Ethylene Glycol
Percentage
LWT
(°C)
Corrective factor
K
p
P
10%
5 1.112
4 1.134
20%
5 1.175
4 1.196
3 1.206
30%
5 1.290
4 1.300
3 1.310
0 1.362
-2 1.393
-4 1.414
40%
5 1.433
4 1.435
3 1.456
0 1.497
-2 1.549
-4 1.580
-6 1.612
-8 1.653
Table 4
Propylene Glycol Percentage % 0 10 20 30 40
Freezing point (1) °C 0 -3 -7 -13 -22
Capacity corrective factor (2)
K
c
P
1 0.991 0.977 0.945 0.911
Absorbed power corrective factor (2)
K
i
P
1 0.994 0.991 0.975 0.966
Flow rate corrective factor
K
f
P
1 1.005 1.030 1.067 1.130
Table 3
Ethylene Glycol
Percentage
LWT
(°C)
Corrective factor
K
f
E
Corrective factor
K
p
E
10%
5 1.0154 1.0710
4 1.0154 1.0760
3 1.0154 1.0810
2 1.0154 1.0850
20%
1 1.0417 1.1930
0 1.0423 1.2000
-1 1.0428 1.2080
-2 1.0434 1.2150
30%
-3 1.0927 1.2990
-4 1.0936 1.3060
-5 1.0945 1.3200
-6 1.0954 1.3330
(1) ASHRAE Handbook Fundamentals.
(2) Valid for LWT=7 °C. If LWT < 7°C consider K
c
x K
c
P
and K
i
x K
i
P
.