MAK M20 - Determining the Cooling Water Mixture for 10 Degrees Dgh

Regulations and careˇ
Diagram I
A4.05.09.03
M20-M601C
en / 28.06.1996 BA000210 1/1
Ĺ
Diagram I
Determining the cooling water mixture for 10° dGH
Example:
Cooling system capacity: 2300 l
Hardness of available fresh water: 19° dGH
To determine the fresh water mixture, proceed from the abscissa “Cooling system capacity” (2300 l)
via the intersection of the 19° dGH line to the ordinate “Amount used” and read off the amount of
water with 19° dGH which is to be used and which is to be mixed with the difference of 2300 - 1200 =
1100 litres of condensate or fully de-ionized water.
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
500 1000 1500 2000 2500 3000 3500 4000 4500 5000
10°
11°
12°
13°
14°
15°
16°
17°
18°
19°
20°
21°
22°
24°
26°
28°
30°
amount used (litres)
Cooling system capacity (litres)
Hardness = dGH