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If heat source and heat sink temperature of a power plant is 900C and 25C respectively, then

i) Calculate the maximum efficiency of the power cycle

ii) Calculate the power input if the output is 210MW

iii) Calculate energy loss from cycle

iv) Draw the energy flow diagram (sankey diagram) of the plant

v) Calculate the fuel consumption flow rate if the plant operates on natural gas with Gross calorific value of 39MJ/m3

vi) If the actual efficiency of the power plant is 35%, then explain where the energy is lost.

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# Thermodynamics and heat

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