(50g) Solar Irradiance

04102015, 05:06 AM
(This post was last modified: 06152017 01:33 PM by Gene.)
Post: #1




(50g) Solar Irradiance
Solar Irradiance: IRRAD
Link to the original blog entry: http://edspi31415.blogspot.com/2015/03/h...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 

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