Predicting Temperature with a Simple Heat Transfer Model

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SUMMARY

The discussion centers on predicting the temperature of a cold surface given a known temperature of a hot surface and the convection coefficient in a heat transfer model. The key challenge is establishing a reliable model to calculate heat flux, which is initially stated as unknown. Participants emphasize the importance of understanding the relationship between convection coefficients and heat flux to accurately predict temperature changes in thermal systems.

PREREQUISITES
  • Understanding of heat transfer principles, specifically conduction and convection.
  • Familiarity with thermal resistance and its role in heat transfer calculations.
  • Knowledge of mathematical modeling techniques for thermal systems.
  • Experience with tools for simulating heat transfer, such as MATLAB or Python libraries.
NEXT STEPS
  • Research the derivation of the heat transfer equation using Newton's Law of Cooling.
  • Explore the use of MATLAB for simulating heat transfer scenarios.
  • Learn about the impact of varying convection coefficients on heat flux calculations.
  • Investigate advanced modeling techniques, such as finite element analysis for thermal systems.
USEFUL FOR

Engineers, physicists, and students involved in thermal dynamics, as well as anyone interested in modeling heat transfer processes in various applications.

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Problem:

Two surfaces exist, a hot and cold. Between them a span of air of a known distance and convection coefficient exists. If the temperature of one surface is known, what is a good model to predict the temperature of the other? Heat flux between the two is unknown. I kindly request help setting this problem up, as well as determine an accuracte model.

Thanks,

Tom,
 
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If you know the convection coefficient why do you say the heat flux is unknown?
 

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