Air enters a compressor operating at steady state with a pressure of 14.7 Ibfin. and a temperature of 70°F. The volumetric flow rate at the inlet is 16.6 ft’/s, and the flow area is 0.26 ft°. At the exit, the pressure is 35 Ibfin.², the temperature is 280°F, and the velocity is 50 ft/s. Hcat transfer from the compressor to its surroundings is 1.0 Btu per Ib of air flowing. Potential energy effects are negligible, and the ideal gas model can be assumed for the air. Determine the compressor power, in Btu/s and hp. Ans. W =-63.9 Btw/s and -90.38 hp %3D

A mixing vessel initially contains 3,989.8 lb of liquid fluid. The vessel is fitted with two inlet pipes, one delivering hot fluid at a mass flow rate of 0.454 lb/sec and the other delivering cold fluid at a mass flow rate of 0.288 lb/sec. Fluid exits through a single pipe at a mass flow rate of 1.338 lb/ sec. Calculate the amount of fluid, in lb, in the tank after 16 minutes.

A mixing vessel initially contains 4,485.43 lb of liquid fluid. The vessel is fitted with two inlet pipes, one delivering hot fluid at a mass flow rate of 0.635 lb/sec and the other delivering cold fluid at a mass flow rate of 0.836 lb/sec. Fluid exits through a single pipe at a mass flowrate of 1.144 lb/sec. Calculate the amount of fluid, in lb, in the tank after 44 minutes.

Consider a diffuser operating at steady-state. Air flows in with a velocity of 300m/s, a pressure of 1 bar, and a temperature of 70 ºC. The outlet is at 1.5 bar and 107 ⁰C.What is the exit velocity? What is the ratio of exit area to the inlet area of the diffuser?

An air enters a compressor at 120 kPa, 20 C with volume flow rate of 10m^3/min. It then exits the compressor at 1.5Mpa and 145 C. Calculate the power input to drive the compressor (under steady state) when heat transfer from the compressor is 2 kW.

A steady state flow of saturated water vapor at 5 bar with a velocity of 14 m/s enters a horizontal pipe with a diameter of 15 cm. If steam exits the pipe at 4.5 bar with a quality of 94%, calculate the heat transfer for the process in kW. hint: No need to calculate the change in the kinetic energy, use velocity and pipe diameter in the calculation of the mass flow rate а. -63.3 b. -87.1 О с. -95.6 d. -106.8 e. -122.6 O f. -133.4 O g. -145.3

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 reciprocating air compressor takes in air at 1 bar, 25 deg. C, and compresses it to a pressure of 5 bar running at 300 rpm. The compression follows the PV1.3=C. The clearance is 4% of stroke volume and mass flow rate of air 0.1 kg/s. Determine the power input to the compressor, and volumetric efficiency. Represent the process on p-v and T-s planes. Assume for air R=287 J/kg.K

Air enters into a nozzle at 4 bar and leaves at 1 bar, 350 °C and 700 m/s. Determine temperature of air entering nozzle, nozzle efficiency and nozzle exit area for air flow rate of 4 kg/s. Take c_p = 1.003 kJ/kg ×K. Please answer ASAP. I will rate Positively. Not Chat GPT