Steam enters a turbine steadily at 7 mpa and 600°c with a velocity of 60 m/s and leaves at 25 kpa with a quality of 95 percent. a heat loss of 21 kj/kg occurs during the process. the inlet area of the turbine is 150 cm2, and the exit area is 1400 cm2. the specific volumes and enthalpies are v1 = 0.05567 m3/kg, h1 = 3650.6 kj/kg, v2 = 5.8933 m3/kg, and h2 = 2500.2 kj/kg. determine

(a) flowrate of the steam,

(b) exit velocity, and

(c) the power output.

At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2