Heat Transfer Rate of 2 Heating Coils on Aluminium Plate

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SUMMARY

The heat transfer rate from two heating coils to an aluminum plate is determined by the configuration of the coils. If the coils are arranged in parallel, the total heat transfer rate is 2W, where W is the power of each coil. It is crucial to note that if the power is specified as "X Watts per square meter," increasing the number of coils does not affect the power density, which remains constant at "X Watts per square meter." This distinction is essential for accurate calculations in thermal systems.

PREREQUISITES
  • Understanding of heat transfer principles
  • Knowledge of electrical power concepts
  • Familiarity with thermal conductivity of materials, specifically aluminum
  • Basic grasp of series and parallel circuit configurations
NEXT STEPS
  • Research the thermal conductivity of aluminum and its implications for heat transfer
  • Learn about the principles of heat transfer in parallel and series configurations
  • Explore the concept of power density in thermal systems
  • Investigate practical applications of heating coils in industrial settings
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Students in engineering disciplines, thermal system designers, and professionals involved in heat transfer analysis will benefit from this discussion.

exec
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Homework Statement



==================== <---- aluminium plate
⁣⁣⁣⁣⁣⁢⁢⁢⁠⁡⁡⁢⁢⁢...O .....O... <---- heat coil(O)

Given an aluminium plate put on 2 heating coil(O), assuming no heat loss, how much is the heat transfer rate from the coil to the plate?

Put the power of each coil as W.

The Attempt at a Solution



Series or parallel? Does the 2 power add up or it all ends up with just W?
 
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Hi exec. Is this a question that you made up?

If it's a question from a textbook, then I think you have abbreviated it too much; you have omitted some relevant details which we would otherwise have to make assumptions for. Can you post the complete question?

Also, you should be able to explain your line of reasoning that leads you to think the answer might be W.
 
What he said. More detail required.

Meanwhile as written it's parallel so 2W.

However watch out for problems where the power from each coil is specified as "X Watts per square meter". Doubling the number of coils AND the area doesn't change the power density. It would still be "X Watts per square meter".
 

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