Solar radiation is incident on a semi-transparent body at a rate of 900 W/m2 . If 150 W/m2 of this incident radiation is reflected back and 225 W/m2 is transmitted across the body, determine the absorptivity of the body.
Given that;
Total incident radiation = 900 W/m²
Reflected Radiation = 150 W/m²
Transmitted Radiation = 225 W/m²
To Find;
Absorptivity () = ?
Total radiation = Reflected radiation + Transmitted radiation + Absorbed radiation
Absorbed radiation = = 525 W/m²
Absorptivity =
= = 0.583
Comments