TECHNICAL MANUAL
Chapter 17
- Correction factors for the use of glycol
NGSi 05÷15
45
ENGLISH
EN
The data in this manual are not binding and they can be modified by the manufacturer without notice.
Reproduction of this manual is strictly prohibited
C
HAPTER
17
C
ORRECTION
FACTORS
FOR
THE
USE
OF
GLYCOL
CCF
: Chilling correction factor
IPCF
: Input power correction factor
WFCF
: Water flow correction factor
PDCF
: Pressure drop correction factor.
The water flow and pressure drop correction factors must be applied to values obtained without the use of glycol. The water flow correction
factor is calculated in order to maintain the temperature difference achieved without the use of glycol. The pressure drop correction factor is
applied to the water flow rate corrected by the water flow correction factor.
C
HAPTER
18
D
IMENSIONS
1 8 . 1
M o d . N G S i 0 5
IN/OUT:1”M
Percentage of glycol
Freezing point (°C)
CCF
IPCF
WFCF
PDCF
10%
-3.2
0.985
1
1.02
1.08
20%
-7.8
0.98
0.99
1.05
1.12
30%
-14.1
0.97
0.98
1.10
1.22
40%
-22.3
0.965
0.97
1.14
1.25
50%
-33.8
0.955
0.965
1.2
1.33
Summary of Contents for NGSi 05
Page 58: ......