Chapter 13 Gas Turbine Power Plants

inlet p 03 = 8 atm and T 03 = 1000°K. The mass flow rate of air is
11 kg/s, and compressor and turbine efficiencies are 0.85. Assuming
that y = 1.4, determine the cycle efficiency and the net power
developed.
13.8 A Brayton cycle uses air as the working substance. At the
compressor inlet p 01 - 1 atm and T 01 = 300°K, and at the turbine
inlet p 03 = 8 atm and T 03 - 1300°K. The mass flow rate of air is
11 kg/s, and compressor and turbine efficiencies are 0.85. Assuming
that y = 1.4, determine the cycle efficiency and the net power
developed. Compare the results of Problems 13.7 and 13.8.
13.9 A Brayton cycle uses air as the working substance. At the
compressor inlet p oj = 1 atm and T 01 = 300°K, and at the turbine
inlet p 03 = 12 atm and T 03 = 1200°K. The mass flow rate of air is
5.8 kg/s, and compressor and turbine efficiencies are 0.85. Assuming
that y varies with average temperature in each process and
using (11.5), determine the cycle efficiency and the net power
developed.
13.10 A Brayton cycle uses air as the working substance. At the
compressor inlet p 01 = 1 atm and T OJ = 300°K, and at the turbine
inlet p 03 =10 atm and T 03 = 1400°K. The mass flow rate of air is
5.8 kg/s, and compressor and turbine efficiencies are 0.85. Assuming
that y varies with average temperature in each process and
using (11.5), determine the cycle efficiency and the net power
developed.
13.11 A Brayton cycle uses air as the working substance. At the
compressor inlet p 01 = 1 atm and T 01 = 300°K, and at the turbine
inlet p 03 =14 atm and T 03 - 1400°K. The mass flow rate of air is
5.5 kg/s, and compressor and turbine efficiencies are 0.85. Assuming
that y varies with average temperature in each process and
using (11.5), determine the cycle efficiency and the net power
developed.