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dc.contributor.authorKhaliq, A-
dc.contributor.authorKaushik, S C-
dc.identifier.citationApplied Energy, 78(2), 179-197en
dc.description.abstractThe aim of the present paper is to use the second-law approach for the thermodynamic analysis of the reheat combined Brayton/Rankine power cycle. Expressions involving the variables for specific power-output, thermal efficiency, exergy destruction in components of the combined cycle, second-law efficiency of each process of the gas-turbine cycle, and second-law efficiency of the steam power cycle have been derived. The standard approximation for air with constant properties is used for simplicity. The effects of pressure ratio, cycle temperature- ratio, number of reheats and cycle pressure-drop on the combined cycle performance parameters have been investigated. It is found that the exergy destruction in the combustion chamber represents over 50% of the total exergy destruction in the overall cycle. The combined cycle efficiency and its power output were maximized at an intermediate pressure-ratio, and increased sharply up to two reheat-stages and more slowly thereafter.en
dc.format.extent590778 bytes-
dc.subjectthermodynamic analysisen
dc.subjectspecific power-outputen
dc.subjectthermal efficiencyen
dc.subjectexergy destructionen
dc.subjectsecond-law efficiencyen
dc.subjectgas-turbine cycleen
dc.subjectpressure ratioen
dc.subjectcycle temperature- ratioen
dc.subjectnumber of reheatsen
dc.subjectcycle pressure-dropen
dc.subjectintermediate pressure-ratioen
dc.titleSecond-law based thermodynamic analysis of Brayton/Rankine combined power cycle with reheaten
Appears in Collections:Energy Studies [CES]

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