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Voor de montage 5
5.3 Hellingshoek van de collectoren
De hellingshoek van de collectoren is afhankelijk van de toepassing en
de dakhelling. Uit toepassingsbereik, dakhelling en hellingshoek wordt
de hoek van de collectorsteunen bepaald.
Afb. 20 Hellingshoek van de collectoren
[α]Hellingshoek
5.3.1 Hellingshoekbereik bepalen
De verschillende toepassingsbereiken van zonnesystemen hebben ver-
schillende hellingshoekbereiken, die afhankelijk van het jaargetijde een
optimale zonneopbrengst waarborgen.
Hellingshoekbereik conform toepassingsbereik bepalen.
5.3.2 Hellingshoek en hoek op schuine daken bepalen
Bij licht schuine daken op het zuiden:
Hoek [2] = hellingshoek [1] –– dakhelling [3]
Bij licht schuine daken op het noorden:
Hoek [2] = hellingshoek [1] + dakhelling [3]
Afb. 21 Hellingshoek op schuine daken
[1] Hellingshoek van de collector
(absolute hoek t.o.v. horizontale lijn)
[2] Hoek van de collectorsteunen
[3] Dakhelling (maximaal 25°)
5.3.3 Hellingshoek en hoek op gevels bepalen
Bij gevelmontage: hoek [2] = 90° –– hellingshoek [1]
Afb. 22 Hellingshoek op gevels
[1] Hellingshoek van de collector
(absolute hoek t.o.v. horizontale lijn)
[2] Hoek van de collectorsteunen
5.4 Benodigde ruimte op het dak
5.4.1 Afstand tussen de collectorrijen vastleggen
De minimale afstand X tussen de collectorrijen resulteert uit de hellings-
hoek van de collectoren.
Lees afstand X af uit de tab. 9 of bepaal deze met de formule.
Bij velden met meerdere rijen de afstand X aanhouden, zodat geen be-
schaduwing kan optreden ( afb. 23 en 24).
Afb. 23 Voorkom beschaduwing, platdakopstelling
[α] Hellingshoek
[β] Minimale zonnestand
[X] Afstand tussen de collectorrijen
Toepassingsgebied Hellingshoekbereik
Warm water 30—45°
Warmwater + kamerverwarming 45—60°
Warm water + zwembad 30—45°
Warmwater + kamerverwarming + zwembad 45—60°
Tabel 8
6720647803-04.1T
α
6720647803-05.1T
30°
45°
30°
15°
15°
45°
1
3
1
2
2
De hellingshoek moet bij de gevelmontage tussen 45° en
60° liggen.
Afstand X plat dak Afstand X gevel
Opstellings-
hoek α
Verticaal Horizontaal Horizontaal
30° 5,43 m 2,94 m
35° 5,85 m 3,17 m
40° 6,22 m 3,37 m
45° 6,55 m 3,55 m 2,33 m
50° 6,83 m 3,70 m 2,26 m
55° 7,06 m 3,82 m 2,18 m
60° 7,23 m 3,92 m 2,08 m
Tabel 9 Afstand tussen de collectorrijen, bij minimale zonnestand (op
plat dak 17°; op gevel: 61°)
45°
45°
30°
60°
6720647803-06.1T
1
2
2
1
6720804147.06-1.ST6720804147.06-1.ST
L
b
sin
tan
b
cos
+
11


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