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+--- Thread: (50g) Solar Irradiance (/thread-3600.html)
(50g) Solar Irradiance - Eddie W. Shore - 04-10-2015 05:06 AM
Solar Irradiance: IRRAD
Link to the original blog entry: http://edspi31415.blogspot.com/2015/03/hp-prime-and-casio-prizm-solar.html
Input:
5: es: elevation of the sun (as decimal degrees)
4: as: azimuth of the sun from south going east (as decimal degrees)
3: ep: elevation of the panel (as decimal degrees)
2: ap: azimuth of the panel from south going east (as decimal degrees)
1: ib: the sun’s power or irradiance (usually 1,000 or 1,367 W/m^2)
Program:
<< → es as ep ap ib
<< DEG ep COS es SIN * ep SIN es COS * as ap – COS *
+ ACOS DUP COS ib * >> >>
Output:
2: incidence angle
1: surface radiance