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25Installatie- en onderhoudshandleiding auroSTEP BE nl
11.2 Voelerkarakteristieken
Boilervoeler Sp1 en Sp2, bouwtype NTC 2,7 K
Voelerkenwaarde Weerstandswaarde
0 °C 9191 Ohm
5 °C 7064 Ohm
10 °C 5214 Ohm
20 °C 3384 Ohm
25 °C 2692 Ohm
30 °C 2158 Ohm
40 °C 1416 Ohm
50 °C 954 Ohm
60 °C 658 Ohm
70 °C 463 Ohm
80 °C 333 Ohm
120 °C 105 Ohm
Tab. 11.2 Voelerkarakteristiek boilervoeler Sp1 en Sp2
Collectorvoeler VR 11, bouwtype NTC 10 K
Voelerkenwaarde Weerstandswaarde
-20 °C 97070 Ohm
-10 °C 55330 Ohm
-5 °C 42320 Ohm
0 °C 32650 Ohm
5 °C 25390 Ohm
10 °C 19900 Ohm
15 °C 15710 Ohm
20 °C 12490 Ohm
25 °C 10000 Ohm
30 °C 8057 Ohm
35 °C 6532 Ohm
40 °C 5327 Ohm
50 °C 3603 Ohm
60 °C 2488 Ohm
70 °C 1752 Ohm
80 °C 1258 Ohm
90 °C 918 Ohm
100 °C 680 Ohm
110 °C 511 Ohm
120 °C 389 Ohm
130 °C 301 Ohm
Tab. 11.3 Voelerkarakteristiek collectorvoeler VR 11
11.3 Platte collector VFK 900
Toestelbenaming Eenheid VFK 900
Oppervlak (bruto, opening/
netto)
m
2
2,24 / 2,01
Hoogte mm 1160
Breedte mm 1930
Diepte mm 90
Gewicht kg 39,4
Zonneglasdikte mm 4
Rendement η
0
0,79
Rendementcoëfficiënt k
1
W/(m
2
•K) 3,78
Rendementcoëfficiënt k
2
W/(m
2
•K
2
) 0,015
Gemiddelde omgevingslucht-
snelheid c
m/s 3,5
Frame Aluminium met
warmte-isolatie aan de
achterkant en aan de
zijden
Absorbermateriaal Koper
Beveiliging Vacuüm
Absorber-absorptie α
% 95
Absorber-emissie ε
% 5
Absorberinhoud l 1,25
Zonne-energievloeistof Glycolwatermengsel
Bedrijfsdruk max. bar 3
Testdruk bar 13
Stilstandstemperatuur °C 196
Zonne-energievoelerhulsØ mm 6
Zonne-energieleidingen Zonnekoperbuis met
10 mm klemschroefver-
binding of soldeerfit-
tings (vlak afdichtend)
Tab. 11.4 Technische gegevens platte collector VFK 900
1
0,8
η
0
,6
0
,4
0,2
0
0
0,02 0,04 0,06
T
m
*
[m
2
K/W]
0,08 0
,1
Afb. 11.1
Zonne-energiecollectorcontrole volgens DIN EN 12975-2:
Rendementsgraadkarakteristiek bij een bestralings-
sterkte van 800 W/m
2
, m.b.t. het openingsvlak van
2,015 m
2
Technische gegevens 11
50


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