1- Steam enters a nozzle at 500 °C and 1000 kPa with a velocity of 15...

1- Steam enters a nozzle at 500 °C and 1000 kPa with a velocity of 15 m/s. It leaves the nozzle at 200 °C and 300 kPa while losing heat at a rate of 30 kW. For an inlet area of 700 cm2, determine the velocity of the steam at the nozzle exit.?

Expert Solution

Amanda K answered 5 months ago

Steam enters the nozzle of an impulse turbine stage at 60 bar and 500 °C and...

Steam enters the nozzle of an impulse turbine stage at 60 bar and 500 °C and leaves at 20 bar. Flow is adiabatic and reversible. The nozzle angle is 20°. The moving blade is symmetric, travels at optimum velocity, and assumed to be frictionless. It is also assumed that there is neither expansion nor contraction of the steam flow through the blade passage. Draw the velocity diagram and calculate (a) the blade efficiency and (b) the stage efficiency.

Air enters a nozzle steadily at 280 kPa and 77°C with a velocity of 70 m/s...

Air enters a nozzle steadily at 280 kPa and 77°C with a velocity of 70 m/s and exits at 85 kPa and 320 m/s. The heat losses from the nozzle to the surrounding medium at 20°C are estimated to be 3.2 kJ/kg. The table for the ideal-gas properties of air is given below. Determine the exit temperature. (Round the final answer to one decimal). The exit temperature is ______K Determine the total entropy change for this process. (Round the final...

Saturated water vapor at 1000 kPa is throttled to 100 kPa. The velocity of the steam...

Saturated water vapor at 1000 kPa is throttled to 100 kPa. The velocity of the steam remains constant through the process. Determine the exit temperature of the water vapor. I know this is already awnsered in a solution for 1st edition but can someone help me understand what they do and how they picked the numbers they did from some table to get the exit temperature?

Steam issues from the nozzle of a De-level turbine at a velocity of 1000 m/s at...

Steam issues from the nozzle of a De-level turbine at a velocity of 1000 m/s at an angle of 20ᵒ. The blade velocity is 300 m/s and blades are symmetrical. The mass flow rate is 0.5 kg/s and a friction factor is 0.8. With the help of velocity diagram, determine 1) Blade efficiency 2) Power developed 3) Stage efficiency if the nozzle efficiency is 95%

At the inlet of a steam turbine the following information are given: p=1000 kPa, T=500 deg-C,...

At the inlet of a steam turbine the following information are given: p=1000 kPa, T=500 deg-C, u = 3124.3 kJ/kg, v = 0.35411, V=20 m/s, z=10 m, and mdot=10 kg/s. determine the inlet area. Determine the flow work at the inlet in MW Determine the rate of transport of flow energy (Jdot). If you neglect ke and pe in the expression for j, how would the answer in part c change? in percentage

1.Steam is accelerated by a nozzle steadily from a low velocity to a velocity of 210...

1.Steam is accelerated by a nozzle steadily from a low velocity to a velocity of 210 m/s at a rate of 3.2 kg/s. If the temperature and pressure of the steam at the nozzle exit are 400 °C and 2 MPa, the exit area of the nozzle is: Select one: a. 8.4 cm2 b. 10.2 cm2 c. 23.0 cm2 d. 152 cm2 e. 24.0 cm2 2.An adiabatic heat exchanger is used to heat cold water at 15 °C entering at a...

1. Air enters a converging-diverging nozzle with a total pressure of 1100 kPa and a total temperature...

1. Air enters a converging-diverging nozzle with a total pressure of 1100 kPa and a total temperature of 127°C. The exit area to throat area ratio is 1.8. The throat area is 5 cm2. The velocity at the throat is sonic and the diverging section acts as a nozzle. Determine the following: a. The mass flow rate b. The exit pressure and temperature c. The exit Mach number d. The exit velocity 2. The converging-diverging nozzle now has a throat area of 100 mm2 and an exit area of 160...

Steam enters an adiabatic turbine steadily at 3 MPa and 400°C and leaves at 50 kPa....

Steam enters an adiabatic turbine steadily at 3 MPa and 400°C and leaves at 50 kPa. If the isentropic efficiency of the turbine is 66.7%, determine the actual temperature of steam at turbine exit. The mass flow rate of the steam flowing through the turbine is 218 kg/min, determine the power output from the turbine. Plot the T-s diagram.

Air enters a nozzle steadily at P1=650kPa and T1=125°C at a velocity of 12m/s and leaves...

Air enters a nozzle steadily at P1=650kPa and T1=125°C at a velocity of 12m/s and leaves at 150m/s with a pressure of P2=110 kPa and temperature of T2=78°C. If the inlet are of the nozzle is 85cm^2, determine (a) Mass flow rate of air in the nozzle and (b) Exit diameter of nozzle.

Steam enters a horizontal 15-cm-diameter pipe as a saturated vapor at 5 bar with a velocity...

Steam enters a horizontal 15-cm-diameter pipe as a saturated vapor at 5 bar with a velocity of 10 m/s and exits at 4.5 bar with a quality of 95%. Heat transfer from the pipe to the surroundings at 300K takes place at an average outer surface temperature of 400 K. For operation at steady state, determine (a) the velocity at the exit, in m/s. (b) the rate of heat transfer from the pipe, in kW. (c) the rate of entropy...

Question