Abstract:
In recent years the entire world is awarring about energy resources limitation, specifically sudan country confronts critical crises in fossil fuel resources and yet more of electricity energy producing from fired thermal power plants. one from these plants Garri(4) steam turbine producing about 110 MW. exergy analysis in the light second law of thermodynamics is powerful tools to innvistigate from optimization of engineering devices. Exergy analysis has been carried out analytically for Garri(4) to evaluate exrgetic efficiency and exergy destruction of each part ; exergy balance and entropy generation calculated to achieve it.
The results showed that combustion chambers are the main source of exergy destruction due to high irreversibilities representing (80.4%) from total exergy destruction, turbine (18.24%) , condenser (1.1%), and the heaters about (1%). The results also showed that thermal and exergetic efficiencies for entire plant (31%,27%) respectively.
