2.10. A single-stage axial-flow gas turbine is to be tested in a "cold rig" so as to simulate the design-point operation. The two sets of operating conditions are: 1. Design-point operation of turbine Stage-inlet total pressure, Pol = 11 bar Stage-inlet total temperature, T, = 1400 K Stage exit total pressure, Poz = 5.0 bar Speed of rotation, Stage efficiency, N = 55,000 rpm n = 87% Mass flow rate m = 3.5 kg/s 2. Cold-rig operation Stage - inlet total pressure, Pol (cr) = 2.5 bar Stage - inlet total temperature, T01 (cr) = 365 K For both sets of conditions assume that the axial velocity across the stage remains constant. Determine, (a) the stage exit total temperature T2(cr) (b) the power output in the cold rig. Assume that the average specific heat ratio for both operating conditions, y = 1.36