Heat transfer between two cylinders

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SUMMARY

The discussion focuses on heat transfer between two concentric cylinders, specifically analyzing the convection and radiation from an inner cylinder maintained at 200°C. The outer cylinder features a large cut-out, prompting questions about calculating the temperature rise of its inner surface and the ambient temperature increase due to heat transfer. Participants suggest that analytical solutions may be impractical, recommending the use of finite element analysis (FEA) for accurate modeling of the heat transfer process.

PREREQUISITES
  • Understanding of heat transfer principles, specifically convection and radiation.
  • Familiarity with finite element analysis (FEA) techniques.
  • Knowledge of thermal conductivity and its role in heat transfer.
  • Basic concepts of thermal equilibrium and temperature gradients.
NEXT STEPS
  • Research finite element analysis software options, such as ANSYS or COMSOL Multiphysics.
  • Study the principles of convection and radiation heat transfer in cylindrical geometries.
  • Explore methods for calculating temperature distribution in multi-layer systems.
  • Investigate the impact of thermal insulation on heat transfer efficiency in cylindrical setups.
USEFUL FOR

Engineers, thermal analysts, and researchers involved in heat transfer applications, particularly those working with vulcanization molds or similar thermal systems.

sriram123
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Imagine two cylinders in which one cylinder in within another.(Please refer attachment)

The annular space between the two cylinders is filled with air.

The outer cylinder is provided with a substantially large cut out

The inner cylinder is maintained at a temperature say 200 deg c

I know that for the inner cylinder,the convection and radiation will be the modes of heat transfer.

My question is how can i find the temperature rise of inner surface of outer cylinder.

Also how to find the increase in ambient temperature due to the convection and radiation from the cut out.

This is to improve my conceptual understanding.Actually this kind of heat transfer happens in vulcanization moulds.
 

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Is my question unclear ?
 
Why do you neglect the transfer through conduction? I mean, through that base plate.
Just curious.
I don't think you can find some analytical solution for this. You can use finite element analysis.
 

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