GENERAL INFORMATION
9
Pressure drop in solar collectors
PRESSURE DROP (mbar)
700
800
900
600
500
400
300
200
100
0
0
500
1000
1500
2000
2500
3000
FLOW RATE (l/h)
Diameter of connection pipes for a specific flow rate of 30 lt/m
2
h
Total surface area (m
2
)
2 - 4
6 - 12
14 - 20
Diameter of copper pipe
(mm)
10 - 12
14
18
Diameter of steel pipe (inch)
3/8" - 1/2"
1/2"
3/4"
