Shadow length Implimentation

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Shadow length Implimentation

Postby ajit.nayak on Sat Mar 29, 2014 10:15 am

Dear all,

http://www.affordable-solar.com/Learning-Center/Building-a-System/Calculating-Tilted-Array-Spacing

Here i am attaching link for refernce , I am looking for relation between tilt angle vs shadow length.
tilt angle vs D
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Postby stapel_eliz on Sat Mar 29, 2014 12:11 pm

ajit.nayak wrote:http://www.affordable-solar.com/Learning-Center/Building-a-System/Calculating-Tilted-Array-Spacing

Here i am attaching link for refernce , I am looking for relation between tilt angle vs shadow length.
tilt angle vs D

The "tilt angle" is . Scroll down to the bottom of the page. They give the equations. :wink:
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Re: Shadow length Implimentation

Postby ajit.nayak on Mon Mar 31, 2014 4:12 am

I know elevation angle or tile angle for single unit. which varies from morning 9AM (-45 degree) to +45 degree @ 4pm
spacing between two stricture are 3200 mm,
height of panel or obstacle is h=1200 mm.
Question here is how to calculate D , D' and alpha new after implementing.


Code: Select all
 static float  height=1200;
  static float  D_max=3200;//d' here
 float phi_a = azimuth*M_PI/180;
 D_min= D_max*cos(180-phi_a);
 Angle=(atan(height/D_max)*(180/M_PI));

 


Here i can possible to upload excel sheet . to understand my concept
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Re: Shadow length Implimentation

Postby maggiemagnet on Tue Apr 01, 2014 11:30 am

Why would you need new formulas for a new location? Can't you just use the same formulas they alrady gave you?
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