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Idiomas disponibles
VHM 2.1 - 2.7
tecHnIcal data
Technical Data Table
model
gross area
opening area
Width
Height (H)
depth
number of connections
size of connections
Optical efficiency (ref. opening)
Heat transfer coefficient a 1 (ref. opening)
Heat transfer coefficient a 2 (ref. opening)
Weight
Water content
max. operating pressure
stagnation temperature
Heat capacity (ref. opening)
radiation angle correction factor K ө (50°)
Heat transfer fluid flow rate
Heat transfer fluid max. flow rate
max. number of collectors in array
absorber with titanium oxide treatment
degree of absorption
emissivity
High-density rock wool insulation, thick.
extra clear toughened prismatic glass, thick.
transmittance
Pressure losses
Pressure loss for a collector for antifreeze mixture with heat transfer fluid temperature of 50°C.
Pa
3000
2500
2000
1500
1000
500
Sizing of the pipe for connection of the collectors to the storage tank:
collector area - m
2
diameter of pipe / copper
diameter of pipe / corrugated stainless steel pipe
Important: The table is only a guide. In case of additional resistances (curves, etc.) or pipes longer than 20 - 30 m, a larger size
should be chosen if necessary.
0
0
0.5
1
Cod. 3541I450 - Rev. 03 - 02/2017
2.1
2.7
m
2.09
2.65
2
m
1.82
2.36
2
mm
1037
1314
mm
2018
2018
mm
89
89
no.
4
4
Ø
3/4"
3/4"
%
80.8
80.8
W/m
K
3.334
3.334
2
W/m
K
0.02
0.02
2
2
kg
34.4
42.4
L
0.85
1.09
bar
10
10
°C
204.9
204.9
kJ/m
K
4.93
4.93
2
0.95
0.95
l/h
100
130
l/h
150
180
no.
8
8
%
95
95
%
5
5
mm
40
40
mm
3.2
3.2
%
>90
>90
1.5
2
l/min.
~ 4
10 - 12
DN 15
collector size
L
2.5
3
3.5
~ 8
~ 12
15
18
DN 20
89
~ 24
22
EN
47
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