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How Much Power Emitted by "the SUN" ?



KISSAN EDUCATION

(www.kissanedu.com)


In early class,we students used to study "SUN is Major sources of Energy" . Here i try to clear every one what is actual meaning of this sentence.


Power emits from sun = 3.8 * 1030 W
Power Density  = 6.25 * 1011 W/m2
Solar Perihelion = 1414 W/m2    3 Jan(longest distance from sun)
Aphelion = 1322 W/m2              3 July(Shortest distance from Sun)




Calculation to find out Solar Power density at outer atmosphere over year

St = S[1 + 0.033Sin(360n/365)] 
Jan 1, n = 1

Jan 2, n = 2

Jan 31, n = 31

Dec 31, n = 365

Suppose,If you want to find out Solar radiation in upper atmosphere in 31 march.





Thus you can calculate value of Solar Constant For any particular day.

In next Blog, how i would Discuss CAN WE USE  SOLAR PV FOR REQUIREMENT OF WORLD POWER ,





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