21
SOLAR THERMAL
Exposure
Lead through and boundary conditions according to EN 12975-2:2006
SUM OF GLOBAL
IRRADIATION (MJ/M²)
NUMBER OF DAYS WITH
MORE THAN 14 MJ/M²
SUM OF RAINFALL
(L/M²)
NUMBER OF HOURS WITH
MORE THAN 850 W/M² (H)
844
34
211
57
Stagnation Temperature
Determination of the stagnation temperature according to EN 12975-2:2006
MEAN IRRADIANCE (W/M²)
MEAN ABSORBER TEMPERATURE (°C)
MEAN AMBIENT TEMPERATURE (°C)
1013
175
22
Determination of power per collector unit:
· Conversion factor 0.751
· Heat Transfer coefficient 4.206
· Temperature depending heat transfer coefficient 0.017
· Incidence angle modifier 0.881
· Area Related Heat Capacity 9.636
· Volume Flow Rate 72
· Aperture area per collector unit 1.82
· Peak power per collector unit 1367
Power output per collector unit (W)
9M 9A IN (K)
400 W/M²
700 W/M²
1000 W/M²
0
547
957
1367
20
381
791
1201
40
191
601
1011
60
0 *
386
796
80
0 *
146
556
100
0 *
0 *
292
POWER CURVE
(G* = 1000 W/M
2
)
1750
1500
1250
1000
750
500
250
0
0
20
40
60
80
100
Power output
per collector
unit (W)
R E N E W A B L E S
Solar Brochure EXTRA:Layout 1 19/02/2010 12:51 Page 21