Q [kW]
200 000
100 000
70 000
40 000
30 000
110/79.8 mm
90/65.4 mm
75/54.4 mm
63/45.6 mm
50/36.2 mm
40/29.0 mm
32/23.2 mm
25/18 mm
20/14.4 mm
.
20 000
10 000
5000
4000
3000
2000
1000
500
300
Perdita di carico ∆p [Pa/m]
V
e
l
o
c
i
t
a
̀
d
e
l
l
’
a
c
q
u
a
2
.
0
m
/
s
1
.
5
m
/
s
1
.
0
m
.
7
5
m
/
s
/
s
0
.
5
m
/
s
0
.
4
0
.
3
m
/
s
m
/
s
2
0
3
0
5
0
7
5
1
0
0
1
5
0
2
0
0
3
0
0
5
0
0
1
0
0
0
2
0
0
0
3
0
0
0
5
0
0
0
0
∆
T
3
0
°
C
2
0
°
C
2
0
3
0
4
0
5
0
8
0
1
0
0
1
2
0
1
4
0
1
6
0
1
8
0
2
0
0
3
0
0
4
0
0
5
0
0
8
0
0
1
0
0
0
1
2
0
0
1
4
0
0
1
6
0
0
1
8
0
0
2
0
0
0
1
0
1
5
2
0
3
0
4
0
5
0
7
5
1
0
0
1
5
0
2
0
0
3
0
0
5
0
0
1
0
0
0
2
0
0
0
3
0
0
0
P
o
r
t
a
t
a
m
[
k
g
/
h
]