What type of heat transfer is this? Conduction, convector, or radiation?

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SUMMARY

The discussion centers on the type of heat transfer occurring in a pan used for boiling water, specifically identifying it as conduction. The heat transfer occurs through the pan's bottom, which is in contact with the stove, while the top surface is in contact with the water. The distinction between conduction and convection is clarified, emphasizing that convection involves fluid movement, whereas conduction occurs through direct contact between surfaces at different temperatures.

PREREQUISITES
  • Understanding of heat transfer concepts: conduction, convection, and radiation
  • Knowledge of temperature differentials and their role in heat transfer
  • Familiarity with fluid dynamics, particularly the concept of velocity profiles in convection
  • Basic principles of thermodynamics related to heat transfer
NEXT STEPS
  • Research the principles of heat conduction in solids, focusing on Fourier's Law
  • Explore the mechanics of convection, including the Navier-Stokes equations
  • Study the differences between conduction, convection, and radiation in various materials
  • Investigate practical applications of heat transfer in cooking and industrial processes
USEFUL FOR

Students and professionals in physics, engineering, culinary arts, and anyone interested in understanding the principles of heat transfer in practical applications.

pyroknife
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We have a pan that is used to boil water. There are 2 surfaces to the pan. One is touching the water and the other is touching the stove, obviously. We have heat that is transferred to to pan's bottom.

I know what all 3 are and process of elimination tells me this is conduction.
Is it conduction because the heat transfer is through a medium where each surface of the pan is at a different temperature?
 
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pyroknife said:
We have a pan that is used to boil water. There are 2 surfaces to the pan. One is touching the water and the other is touching the stove, obviously. We have heat that is transferred to to pan's bottom.

I know what all 3 are and process of elimination tells me this is conduction.
Is it conduction because the heat transfer is through a medium where each surface of the pan is at a different temperature?

Convection is also heat transfer through a medium between regions of different temperature. Why is this different from convection?
 
Convection involves a fluid flowing through a surface. This generates a velocity profile that starts at 0 velocity at the surface (no slip condition) and gradually increases to the free stream velocity at the boundary layer's exit.
 

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