Question

Difference between emissive power and radiant power

Answer 1

Answer:

We know this as the emissive power. The radiation intensity is actually a measure that defines how radiant heat flux is distributed through surface area. The relationship between the emissive ...

Answer 2

Answer:

(1) Emissive power or radiant power of a body (symnbol, R): The emissive power or radiant power of a body at a given temperature is defined as the quantity of radiant energy emitted by the body per unit time per unit surlace area of the body at that temperature.

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Extra

Coefficient of emission (or emissivity) of a body (symbol, e): The coefficient of emission (or emissivity) of a body is defined as the ratio of the emissive power of the body (R) to the emissive power of a perfect blackbody (R,) at the same temperature as that of the body.

e = R/R_b