PART III$-$ Presentation$-$ Feasibility of using a combined cycle $($gas $+$ steam$)$ turbines power plant $($specification provided$)$ as a back$-$up energy source. $(50$ points$)$

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You are tasked to check the feasibility of producing the required power by combining two power cycle $($steam and gas$).$ You are also free to suggest any power source $($s$)$ as part of your proposal with substantiation$/$reasoning$.($ as part of your presentation include your main finding for parts III.a to III.e$.$

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It is well known that a combined gas turbine and steam turbine provide higher combined$$ plant efficiency given by;

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gas is the net power developed by the gas turbine and vap is the net power developed by the vapor cycle. in denotes the total rate of heat transfer to the combined cycle, including additional heat transfer, if any, to superheat the vapor entering the vapor turbine.

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Consider the following parameter for the ST operating a mass flow rate: v$=15\mathrm{.}6$ kg$/$s$.$

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Perform the following calculations.

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III.a Calculate the net power developed of the ST$,$ in MW$.(5$ pts$)$

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III.b Calculate the net power developed of the GT $($in part II$)$ and ST $($part $($III$)$ combined, in MW$.(5$ pts$)$

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III.c Provided that you are required to ensure a $50$MW power capacity, is the combined cycle power plant able to be used as a reliable back$-$up energy source? $(5$ pts$)$

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III.d Provide the net efficiency of the combined plant $($ST in part III and GT in part II$).(5$ pts$)$

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III.e Provide an executive summary including the main results, pros$/$cons for the solar and fossil fuel energy sources developed for the town of Cookeville. $(30$ pts$)$

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