Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the inlet are 530oR and 150 ft/s, respectively. At the exit, the temperature is 440oR and the pressure is 40 lbf/in2. The area of the exit is 0.0085 ft2. Use the ideal gas model with k = 1.67, and neglect potential energy effects.  Determine the velocity at the exit, in ft/s, and the mass flow rate, in lb/s.

Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400 ft/s. The inlet area is 1.4 in². At the exit, the pressure is 400 lb/in² and the velocity is negligible. The diffuser operates at steady state and potential energy effects can be eglected. Determine the mass flow rate, in lb/s, and the exit temperature, in °F. Step 1 Your answer is correct. Determine the mass flow rate, in lb/s. m = 28.887 Hint Step 2 lb/s. Determine the exit temperature, in °F. T₂ = i OF Attempts: 1 of 4 used

A flange coupling has 6 bolts with a bolt circle diameter of 200 mm is used to connect the steam turbine to a 5 MW generator running at 3,600 rpm with an efficiency of 95 %. Find the force on each bolt that will cause it to shear. A. 23.27 kN B. 32.72 kN C. 27.53 kN D. 35.94 kN

A steam turbine operates with an inlet condition of 30 bar, 400 °C, 160 m/s and an outlet state of a saturated vapour at 0.7 bar with a velocity of 100 m/s. The mass flow rate is 1200 kg/min and the power output is 10800 kW. Present the process on the T-v diagram. Determine the magnitude and direction of the heat-transfer rate in kJ/min if the potential energy change in negligible.