Emissivity of Body Solution

STEP 0: Pre-Calculation Summary
Formula Used
Emissivity = Emissive Power of Non Blackbody/Emissive Power of Blackbody
ε = E/Eb
This formula uses 3 Variables
Variables Used
Emissivity - Emissivity is the ability of an object to emit infrared energy. Emissivity can have a value from 0 (shiny mirror) to 1.0 (blackbody). Most organic or oxidized surfaces have emissivity close to 0.95.
Emissive Power of Non Blackbody - (Measured in Watt per Square Meter) - Emissive Power of Non Blackbody is the energy of thermal radiation emitted in all directions per unit time from each unit area of surface of Non blackbody at any given temperature.
Emissive Power of Blackbody - (Measured in Watt per Square Meter) - Emissive Power of Blackbody is the energy of thermal radiation emitted in all directions per unit time from each unit area of a surface of blackbody at any given temperature.
STEP 1: Convert Input(s) to Base Unit
Emissive Power of Non Blackbody: 308.07 Watt per Square Meter --> 308.07 Watt per Square Meter No Conversion Required
Emissive Power of Blackbody: 324.29 Watt per Square Meter --> 324.29 Watt per Square Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
ε = E/Eb --> 308.07/324.29
Evaluating ... ...
ε = 0.94998303987172
STEP 3: Convert Result to Output's Unit
0.94998303987172 --> No Conversion Required
FINAL ANSWER
0.94998303987172 0.949983 <-- Emissivity
(Calculation completed in 00.004 seconds)

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Absorptivity given Reflectivity and Transmissivity
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Emissivity of Body Formula

​LaTeX ​Go
Emissivity = Emissive Power of Non Blackbody/Emissive Power of Blackbody
ε = E/Eb

What is Radiation?

Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties. You could also call radiation “electromagnetic waves”.

What is Blackbody?

A black body is defined as the body which absorbs all the electromagnetic radiation (that is light) that strikes it irrespective of the angle of incidence and frequency of the radiation.

How to Calculate Emissivity of Body?

Emissivity of Body calculator uses Emissivity = Emissive Power of Non Blackbody/Emissive Power of Blackbody to calculate the Emissivity, The Emissivity of Body formula is defined as the ratio of Emissive Power of Non Blackbody to the Emissive Power of Blackbody at the same temperature. Emissivity is denoted by ε symbol.

How to calculate Emissivity of Body using this online calculator? To use this online calculator for Emissivity of Body, enter Emissive Power of Non Blackbody (E) & Emissive Power of Blackbody (Eb) and hit the calculate button. Here is how the Emissivity of Body calculation can be explained with given input values -> 0.949983 = 308.07/324.29.

FAQ

What is Emissivity of Body?
The Emissivity of Body formula is defined as the ratio of Emissive Power of Non Blackbody to the Emissive Power of Blackbody at the same temperature and is represented as ε = E/Eb or Emissivity = Emissive Power of Non Blackbody/Emissive Power of Blackbody. Emissive Power of Non Blackbody is the energy of thermal radiation emitted in all directions per unit time from each unit area of surface of Non blackbody at any given temperature & Emissive Power of Blackbody is the energy of thermal radiation emitted in all directions per unit time from each unit area of a surface of blackbody at any given temperature.
How to calculate Emissivity of Body?
The Emissivity of Body formula is defined as the ratio of Emissive Power of Non Blackbody to the Emissive Power of Blackbody at the same temperature is calculated using Emissivity = Emissive Power of Non Blackbody/Emissive Power of Blackbody. To calculate Emissivity of Body, you need Emissive Power of Non Blackbody (E) & Emissive Power of Blackbody (Eb). With our tool, you need to enter the respective value for Emissive Power of Non Blackbody & Emissive Power of Blackbody and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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