Find the second-law efficiency for combined system

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Reference no: EM131200588

A paper mill has two steam generators, one at 4.5 MPa, 300?C and one at 800 MPa, 500?C. Each generator feeds a turbine, both of which have an exhaust pressure of 1.2 MPa and isentropic efficiency of 87%, such that their combined power output is 20 MW. The two exhaust flows are mixed adiabatically to produce saturated vapor at 1.2 MPa.what is second-law efficiency for combined system?

Reference no: EM131200588

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