Efficiency of engines
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Zenarthra
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http://www.mpoweruk.com/images/heat_engine.gif
Consider this diagram.
The ideal efficiency would be W x 100 / Qin
This wouldnt be the actual efficiency would it?
because Work is also done to overcome friction and stuff like that right?
Thanks!
Consider this diagram.
The ideal efficiency would be W x 100 / Qin
This wouldnt be the actual efficiency would it?
because Work is also done to overcome friction and stuff like that right?
Thanks!
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(Original post by Zenarthra)
http://www.mpoweruk.com/images/heat_engine.gif
Consider this diagram.
The ideal efficiency would be W x 100 / Qin
This wouldnt be the actual efficiency would it?
because Work is also done to overcome friction and stuff like that right?
Thanks!
http://www.mpoweruk.com/images/heat_engine.gif
Consider this diagram.
The ideal efficiency would be W x 100 / Qin
This wouldnt be the actual efficiency would it?
because Work is also done to overcome friction and stuff like that right?
Thanks!

The ideal efficiency is the Carnot efficiency.
In terms of heat pumps, the work you manage to extract is typically useful work. Work is defined as anything which is equivalent to the raising of a weight.
If you have any more questions, feel free to quote me.
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