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Mechanical Engineering

Emissivity of black surface Calculator

Mechanical Engineering

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Emissivity of black surface

Equation and meaning

\[\epsilon = \frac{E}{E_{b}}\]

Emissivity

Variables in this formula

E — Energy
Energy SI unit: J
epsilon — Epsilon
Enter this value unless it is the selected unknown.
E_b — E B
Enter this value unless it is the selected unknown.

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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