Full Version: Heat Transfer
)“If you have two surfaces with different emissivities but the same temperature, would the one with lower emissivity heat up since it emits less?” 2)“Surface area versus cross-sectional area in resistances."Whaat is the difference between the two
This sounds like a homework question. Why don't you fill out your profile, and reconsider the appropriate forum for your query.
That would be great: we would connect the two surfaces again with a heat exchanger, and get free energy!
Please check out http://en.wikipedia.org/wiki/Cross_section_(geometry) and http://en.wikipedia.org/wiki/Surface_area and then come back with specific information on what you don't understand. What is the context of "resistances"?
QUOTE (kiran87 @ Sep 10 2008, 11:22 PM) 
)“If you have two surfaces with different emissivities but the same temperature, would the one with lower emissivity heat up since it emits less?”
That would be great: we would connect the two surfaces again with a heat exchanger, and get free energy!
QUOTE (kiran87 @ Sep 10 2008, 11:22 PM)
2)“Surface area versus cross-sectional area in resistances."Whaat is the difference between the two
Please check out http://en.wikipedia.org/wiki/Cross_section_(geometry) and http://en.wikipedia.org/wiki/Surface_area and then come back with specific information on what you don't understand. What is the context of "resistances"?
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