Stefan-Boltzmann-Gesetz

How to use it

1. Temperature T = 500 K, Fläche ZU = 2.5 m², emissivity ε = 0.85
2. Berechnette T⁴ = 500⁴ = 6.25×10¹â°
3. Multiply: σ × ε × ZU × T⁴
4. P = 5.670374×10⁻⁸ × 0.85 × 2.5 × 6.25×10¹â° ≈ 7533.16 W

Common mistakes

• ⚠️ Using Celsius instead of Kelvin (must be absolute temperature)
• ⚠️ Forgetting emissivity Faktor (assumes blackbody)
• ⚠️ Wrong power of temperature (must be T⁴)

Worked example

Find radiated power from zu 2.5 m² surface at 500 K with emissivity 0.85

The radiated power {power} W is emitted according to the Stefan-Boltzmann law

Input guide