how can we make efficiency of carnot engine maximum?
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Carnot principles are only for the cyclical devices like heat engines, which state that :
The efficiency of an irreversible heat engine is always less than the efficiency of a reversible one operating between the same two reservoirs.
The efficiencies of all reversible heat engines operating between the same two reservoirs are the same.
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It is shown that the efficiency, η, at maximum power output is given by the expression
η = 1 − (T2/T1)1/2 where T1 and T2 are the respective temperatures of the heat source and heat sink.
It is also shown that the efficiency of existing engines is well described .
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