Figure P2.86 shows two power cycles, A and B, operating in
Chapter 2, Problem 2.86(choose chapter or problem)
Figure P2.86 shows two power cycles, A and B, operating in series, with the energy transfer by heat into cycle B equal in magnitude to the energy transfer by heat from cycle A. All energy transfers are positive in the directions of the arrows. Determine an expression for the thermal efficiency of an overall cycle consisting of cycles A and B together in terms of their individual thermal efficiencies.
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