Confirming Convection: Heat Escape Through Unlidded Containers

AI Thread Summary
Heat escape from an unlidded container primarily occurs through convection, as hot air is less dense than cold air and rises. While conduction and radiation also contribute to heat loss, convection is the dominant mechanism in this scenario. Infrared radiation plays a minor role unless the container's interior temperature is extremely high. Overall, convection is the key process for understanding heat loss in open containers. This confirms the initial inquiry about heat escape dynamics.
gem0688
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Hi,

Just a quick question, I just want to check that i am on the right lines!

When heat escapes through the top of a container which does not have a lid, is that due to convection? i/e hot air is less dense than cold air, so rises.

Cheers

o:) Gemma o:)
 
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Out of conduction, convection and radiation, you are correct that convection would account for the majority of the heat loss. There will be a little due to IR radiation, but that won't account for much unless the interior of the container is red hot.
 
Cheers,

just wanted 2 make sure! :biggrin:

o:) Gemma o:)
 

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