Efficiency and Heat Exchange by Reversible Heat Engines
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Two reversible heat engines X and Y are arranged in series. The engine X rejected heat directly to Y. Engine X receives 400 KJ of heat at 427 degrees centigrade from a high temperature source. Engine Y rejects heat to a sink at 7 degree centigrade. If the output of X is twice that of Y, find the efficiency of each engine, the heat rejected by engine X (i.e. Heat received by engine Y), and the heat rejected to the sink.
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Solution Summary
This solution looks at two reversible heat engines arranged in series and calculates the heat rejected by engine Y to the sink by using Clausius inequality and provides step by step calculations of other quantities.
Solution Preview
You can solve this problem by using second law of thermodynamics and Clausius inequality for reversible heat engines. Here heat rejected by engine X is the input of engine Y and heat rejected by engine Y goes to the sink.
As both the engines are reversible we can use Clausius inequality (Second law of thermodynamics), which is,
Q1/T1 = Q2/T2
where, Q1 is input heat to the engine X from source having ...
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