Calculator · Thermal Engineering
Stefan–Boltzmann Radiation
Blackbody and gray-surface emissive power and total emission, with no assumed environmental exchange.
Inputs
Results
Total emitted power
5.6704 kW
Emission only
| Blackbody emissive power Eb | 3544 W/m² |
|---|---|
| Gray-surface emissive power E | 2835.2 W/m² |
Assumptions
- · Gray diffuse surface emission only; no environmental exchange.
- · Absolute temperature must be above 0 K, following the frozen engine.
Technical reference
Eb = σT⁴
E = εEb
Pemitted = EA
Radiative emissivity ε is distinct from exchanger effectiveness εHX.
Temperatures are absolute K; frozen engine requires T > 0 K.