Calculate Thermodynamic Cycle Analysis Of Turbine And Gravemetric Composition Of Exhaust Gases

Question

A single shaft gas turbine for a power generation application consists of an axial flow compressor with 11 stages to achieve a pressure ratio of 15.5 to 1, a single can combustor, and a turbine with 3 reaction stages. The net electric power output from the plant is 11250 KW and the exhaust gas flow is 47.5 kg/s. The plant uses natural gas which consists 95% Methane and 5% Ethane by volume and has a lower heating value of 48.12 MJ/kg. Make all necessary assumptions in your analysis, and state and justify each of them.

Hence:

a. Perform the thermodynamics cycle analysis to estimate the temperatures at the turbine inlet and exit and the overall plant efficiency.

b. Determine the gravemetric composition of the exhaust gases assuming an overall equivalence ratio of 0.5.

c. Estimate the adiabatic flame temperature for the above mixture.

d. Outline the thermodynamic effects of dissociation in the combustion process.

Summary

The question belongs to Physics and it discusses about calculating thermodynamic cycle analysis, gravemetric composition, adiabatic flame temperature, etc.

Total Word Count 468

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