An Exergy Analysis of a 250 MW Thermal Power Plant

In this work, an exergy analysis of a 250 MW power plant is carried out. A thermal performance analysis is also done using the MATLAB calculation tool. The exergy destruction phenomenon and the exergetic efficiency are calculated for the various components of the 250 MW coal fired sub-critical power plant. The calculated overall plant exergy efficiency is evaluated to be 34.75%. Besides, from the results obtained, it can be concluded that the exergy destruction takes place in the steam generator 490.76 MW (93.07%), followed by the other components. A comparative study of the heat loss ratio with respect to varying plant load is performed, out of which, the condenser contributes to a major heat loss ratio. The outcomes of this research work will be beneficial for the future researchers.