Radiative heat transfer calculator


Two bodies transfer heat via radiation to each other and the environment.



This calculator determines the temperature transients and heat fluxes in the system.

Step 1a Input data for body 1

Initial temperature [K]
Heat generation [W]
Surface Area [m2]
Emissivity [-]
Heat capacity [J/K]
View factor 1->2 [-]
Constant Temperature

Step 1b Input data for body 2

Initial temperature [K]
Heat generation [W]
Surface Area [m2]
Emissivity [-]
Heat capacity [J/K]
Constant Temperature

Step 2 Input data for enclosure

Initial temperature [K]
Surface Area [m2]
Emissivity [-]
Heat capacity [J/K]
Constant Temperature

( to approximate an infinite enclosure, input a very large surface area and an emissivity of 1)

Step 3 Input simulation time

Simulation time [s]

Step 4 Calculate

Node temperaturesT1T2T3-1-0.8-0.6-0.4-0.200.20.40.60.81-1-0.8-0.6-0.4-0.200.20.40.60.81time [s]T [K]
TT1T2T3
0000
0000

-






Heat transferQ12Q13Q23-1-0.8-0.6-0.4-0.200.20.40.60.81-1-0.8-0.6-0.4-0.200.20.40.60.81time [s]Heat Flux [W]
QQ12Q13Q23
0000
0000


Current status of the calculator:
  • Bug testing; liniarized temperature calculation


This calculator was made for educational purposes only. No rights can be obtained from the results you calculate. If you have comments please contact info@dspe.nl.



References

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