Quickly determine the radiant heat energy emitted or absorbed by a surface. Our Radiant Heat Energy Calculator applies the Stefan-Boltzmann law, considering emissivity, surface area, and absolute temperature to find thermal radiation accurately. Ideal for engineers, physicists, and HVAC professionals.
Formula:
The Radiant Heat Energy (Q) is calculated using the Stefan-Boltzmann law:
Q = ε ⋅ σ ⋅ A ⋅ T4
- Q: Radiant Heat Energy (Watts)
- ε (Epsilon): Emissivity of the material (dimensionless, 0 to 1)
- σ (Sigma): Stefan-Boltzmann Constant (5.67 x 10-8 W/m2K4)
- A: Surface Area (square meters, m2)
- T: Absolute Temperature (Kelvin, K)