5 |
the following model allows calculation of the angle of incidence of |
the following model allows calculation of the angle of incidence of |
6 |
sunlight onto an inclined surface |
sunlight onto an inclined surface |
7 |
|
|
8 |
The equation of time has been changes to the Duffie & Beckman 2nd edition |
The equation of time has been changed to the Duffie & Beckman 2nd edition |
9 |
form, cited as coming from Iqbal 1983. The equation for 'B' has also |
form, cited as coming from Iqbal 1983. The equation for 'B' has also |
10 |
been changed to the 2nd Ed D&B form. |
been changed to the 2nd Ed D&B form. |
11 |
|
|
12 |
For the longitude correction we use the spherical geometry convention |
For the longitude correction we use the spherical geometry convention |
13 |
of making east positive. D&B are americocentric, obviously :-) |
of making east positive. D&B are americocentric, obviously :-) |
14 |
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|
15 |
|
See further notes and references at the end of the file. |
16 |
|
|
17 |
by John Pye, 2006 |
by John Pye, 2006 |
18 |
*) |
*) |
19 |
MODEL sunpos; |
MODEL sunpos; |