/[ascend]/trunk/models/johnpye/sunpos.a4c
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revision 974 by johnpye, Tue Dec 19 11:00:57 2006 UTC revision 1974 by jpye, Mon Dec 29 12:04:53 2008 UTC
# Line 5  REQUIRE "atoms.a4l"; Line 5  REQUIRE "atoms.a4l";
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    
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;

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john.pye@anu.edu.au
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