solar radiation arrives at the top of the atmosphere at a rate of 84kj per minute per square metre(84/min.m2). On average only 47% of this energy reaches the ground level.Calculate the amount of energy in kj reaching 2m2 at ground level over the period of 10800 seconds
Answers
Given : solar radiation arrives at the top of the atmosphere at a rate of 84kj per minute per square metre(84/min.m²).
On average only 47% of this energy reaches the ground level.
To Find : the amount of energy in kj reaching 2m² at ground level over the period of 10800 seconds
Solution:
solar radiation arrives at the top of the atmosphere = 84 kj per min mer m²
47% of this energy reaches the ground level.
= (47/100) 84
= 39.48 kj per min per m²
2m² at ground level
= 2 * 39.48 kj per min
= 78.96 kj per min
10800 seconds = 10800/60 mins
= 180 mins
the amount of energy in 10800 seconds reaching 2m2 at ground level
= 180 x 78.96 kj
= 14,212.8 kj
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