PPT Slide
Assignment 9-2: We would like to design a turbine power plant operating on an ideal Brayton cycle with a specific pressure ratio rp. The air temperature is 300 K (T1) at the compressor inlet and the maximum temperature of the turbine temperature (T3) is limited to 1200 K to avoid material failure of the turbine blades. Assume ideal gas and cp=1.003 kJ/kg K. (a) Plot the thermal efficiency of the power plant as a function of the pressure ratio. (b) Determine the net work output and heat transfer Qin as a function of the pressure ratio. (c) Determine the pressure ratio at which the turbine will produce the maximum work output; also determine the thermal efficiency at this pressure ratio. Discuss your results.