Technical Data; Technical Data Table - Ferroli VF Instructions De Montage

TECHNICAL DATA

Technical Data Table

Model
Gross area
Opening area
Absorber area
Width
Height
Depth
Number of connections
Size of connections
Optimal effi ciency (ref. absorber)
Heat transfer coeffi cient a1 (ref. absorber)
Heat transfer coeffi cient a2 (ref. absorber)
Optical effi ciency (ref. opening)
Heat transfer coeffi cient a1 (ref. opening)
Heat transfer coeffi cient a2 (ref. opening)
Weight
Water content
Max. operating pressure
Stagnation temperature
Heat capacity (ref. opening)
Radiation angle of incidence correction factor
Heat transfer fl uid fl ow rate
Max. number of collectors in array
Absorber in copper with CERMET 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.
100
90
80
70
60
50
40
30
20
10
0
0 100
Sizing of the pipe for connection of collectors to the storage tank:
Area of collectors - m
Diameter of pipe / copper
Diameter of pipe / corrugated pipe in s/steel
Important: The table is only a guide. In case of additional resistances (curves, etc.) or or pipes longer than 20 - 30 m, a larger size
should possibly be chosen.
32
EN
2.0
m 2 1.97
m 2 1.89
m 2 1.87
1160
mm
1700
mm
80
mm
no. 4
Ø 3/4" M
% 76.4
W/m 2 K 3.764
W/m 2 K2 0.017
% 75.5
W/m 2 K 3.72
W/m 2 K2 0.017
Kg 35
1.4
litres
10
bar
177
°C
kJ/m 2 K 8.038
K 50° 0.896
l/h 100-250
no. 8
% 95
% 5
mm 40
4
mm
91.4
%
200 300
2
Cod. 3540S892 - 01/2010 (Rev. 00)
2.3 2.8
2.32 2.78
2.23 2.69
2.21 2.66
1160 1160
2000 2400
80 80
4 4
3/4" M 3/4" M
75.5 78
3.731 3.28
0.009 0.026
75 77.1
3.706 3.24
0.009 0.026
41 49
1.5 1.6
10 10
177 177
5.435 9.541
0.89 0.897
100-250 100-300
8 8
95 95
5 5
40 40
4 4
91.4 91.4
400 500 600
m [kg / h]
~ 4
10 - 12
DN 15
Collector size
1160
700 800 900
~ 8 ~ 12
15 18
DN 20
VF
80
1000
~ 24
22