19
INRLPY. 02.10 4086916_01
10. CORRECTION
FACTORS
10.1. COOLING CAPACITY AND
INPUT POWER
−
"STANDARD
VERSIONS"
The refrigerating capacity yielded
and the input electrical capacity in
conditions other than rated conditions
are obtained by multiplying the rated
values (Pf, Pa) by the respective
correction coefficients (Cf, Ca).
The following diagrams allow you to
obtain the correction coefficients to
be used for the various versions of the
devices, in cold mode; next to each
curve you can see the outside air
temperature to which it refers.
KEY
Cf:
correction coefficient of the
cooling capacity.
Ca:
correction coefficient of the
input power.
FOR
∆
t DIFFERENT FROM 5°C
For the evaporator, use
Tab. 9.3.1.
to obtain the corrective factors of
the cooling and absorbed power.
To take into account the exchanger
soiling, apply the relative fouling
factors,
Tab. 9.4.1.
0,6
0,7
0,8
0,9
1
1,1
1,2
1,3
1,4
-4
-6
-2
0
2
4
6
8
10
12
14
16
18
40°C
42°C
35°C
30°C
25°C
20°C
Ca cooling mode
Processed water (°C)
CORRECTION COEFFICIENTS OF THE INPUT POWER IN COOLING MODE
Cf
CORRECTIVE COEFFICIENT OF THE COOLING CAPACITY VERSION C
0,4
0,5
0,6
0,7
0,8
0,9
1
1,1
1,2
1,3
1,4
1,5
1,6
-6
-4
-2
0
2
4
6
8
10
12
14 15
20°C
25°C
30°C
35°C
40°C
42°C
Evaporation temperature [°C]
Ca
CORRECTIVE COEFFICIENTS OF INPUT POWER VERSION C
1,3
1,4
1,1
1,2
0,9
1,0
0,7
0,8
0,6
-6
-4
-2
0
2
4
6
8
10
12
14 15
20°C
25°C
30°C
35°C
40°C
42°C
Evaporation temperature [°C]
Cf
Processed water (°C)
CORRECTION COEFFICIENTS OF THE COOLING CAPACITY
0,4
0,5
0,6
0,7
0,8
0,9
1
1,1
1,2
1,3
1,4
1,5
1,6
-6
-4
-2
0
2
4
6
8
10
12
14
16
18
20°C
25°C
30°C
35°C
40°C
42°C
Summary of Contents for NRL
Page 2: ......
