THERMODYNAMIC ANALYSIS OF COMBINED CYCLE POWER PLANT WITH BYPASSING AND REHEATING

Abstract

The fundamental aim of the presented research is to demonstrate how different parameters of a combined cycle power plant, such as overall efficiency, overall work done, steam mass flow rate, and so on, alter with a change in the Brayton cycle pressure ratio when bypassing and reheating are performed. A combined cycle power plant is made up of gas turbine along with steam turbine and heat exchanger. For reaching the optimal result, we basically combine the Brayton and Rankine cycles. The calculations required for the thermal analysis are performed using MATLAB software, which considers genuine variable ranges of the main operating factors such as pressure ratio, temperature, air fuel ratio along with mass flow rate of air. These parameters' influence on system performance are explored. The optimization findings show that varied values of optimization methods can increase thermodynamic performance.