Cycle Problem - A turbo shaft engine with the following performance is the subject of a research and development program to add a combustion wave rotor to it to achieve a pressure gain during combustion. The wave rotor consumes 10 HP during operation at max power. Models indicate that the wave rotor may increase the pressure by 10% over the combustor inlet pressure. Assuming that thrust is linear with shaft horse power, how much of an increase in thrust is possible? What is the change in SFC? Assume that the existing polytropic turbine efficiency remains constant for the power turbine. MaxPower: Mass Flow Rate = 100 lb/sec Compressor Pressure Ratio = 8:1 Pamb = Pt2 = 14.696 psia Tamb = Tt2 = 59 deg F ERAM = 1.0 Compressor Polytropic Efficiency = 90% Turbine Polytropic Efficiency = 92% Combustor Temperature Rise = 1000 deg F Combustor Pressure Ratio = 0.98 f/a = 0.04 Assume: Gamma = 1.4 for the ompressor, Gamma = 1.33 for the turbine, Cp = 186.8 ft-lbf/(lbm-R)for the compressor and Cp = 231.2 ft-lbf/(lbm-R) for the turbine