Q [kW]
200 000
100 000
70 000
40 000
30 000
20 000
10 000
5000
4000
3000
2000
1000
500
300
63/51.4 mm
50/40.8 mm
40/32.6 mm
32/26.2 mm
25/20.4 mm
Perdita di carico Δp [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
/
1
,
0
m
/
s
0
,
7
5
m
/
s
0
,
5
m
/
s
0
,
3
m
/
0
,
4
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
s
s
∆
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
]