Solar Irradiance کا حساب کیسے لگائیں
Solar Irradiance کیا ہے؟
Solar irradiance is solar power density reaching Earth's surface. It varies by location, time, clouds, and atmospheric conditions.
مرحلہ وار گائیڈ
- 1Direct normal irradiance (DNI): beam radiation perpendicular to surface
- 2Diffuse horizontal irradiance (DHI): scattered radiation from entire sky
- 3Global horizontal irradiance (GHI): total arriving at horizontal surface
حل شدہ مثالیں
ان پٹ
Clear day, sea level, solar noon
نتیجہ
GHI ≈ 1000 W/m² (AM 1.5 standard spectrum)
Peak theoretical
عام غلطیاں جن سے بچنا ہے
- ✕Using peak 1000 W/m² without accounting for clouds and seasons
- ✕Neglecting angle-of-incidence effects
اکثر پوچھے جانے والے سوالات
How does altitude affect irradiance?
Higher elevation reduces atmospheric path, increasing irradiance. 1000 m altitude ~10% higher than sea level.
Why do solar panels need tilting?
Tilting captures more direct irradiance. Optimal angle ≈ latitude for fixed systems.
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