Non Ideal Body Surface Emittance Calculator

Calculate Non Ideal Body Surface Emittance





Formula

The formula to calculate the Real Surface Radiant Surface Emittance is:

\[ e = \epsilon \cdot [\text{Stefan-BoltZ}] \cdot T_w^4 \]

Where:

Definition

Real surface radiant surface emittance is the emittance by normal objects (non-black body).

Example Calculation

Let's assume the following values:

Using the formula:

\[ e = 0.95 \cdot 5.670367E-8 \cdot 305^4 \]

Evaluating:

\[ e = 466.159061868529 \text{ W/m²} \]

The Real Surface Radiant Surface Emittance is 466.159061868529 W/m².

Conversion Chart

Emissivity Surface Temperature (K) Real Surface Radiant Surface Emittance (W/m²)
0.9 305 441.624374401764
0.91 305 446.531311895117
0.92 305 451.438249388470
0.93 305 456.345186881823
0.94 305 461.252124375176
0.95 305 466.159061868529
0.96 305 471.065999361882
0.97 305 475.972936855235
0.98 305 480.879874348588
0.99 305 485.786811841941
1 305 490.693749335294