Thermal
Emissivity from radiation heat rate
Calculates emissivity from radiation heat rate, area, and temperatures.
Related calculators
Gray-body radiation heat rate
Calculates gray-body radiation heat rate with emissivity.
Gray-body radiation heat flux
Calculates gray-body radiation heat flux.
Blackbody radiation heat rate
Calculates ideal blackbody radiation heat rate between two temperatures.
Air required from air-fuel ratio
Calculates air mass from user-provided air-fuel ratio and fuel mass.
Boiler efficiency
Calculates indicative efficiency as useful heat output divided by fuel energy input.
Ideal Brayton cycle
Calculates ideal Brayton efficiency; an optional inlet temperature gives compressor-outlet temperature.