7. A converging-diverging nozzle receives steam at apressure of 380 psia with temperature of 480F andexpands it to a pressure of 50 psia. Assuming the velocity coefficient of 0.98throat condition and an overall nozzle efficiency of92 percent, calculate the following:A. The actual throat velocity, fus 7532B.The mass rate of flow for a throat diameter of0.50 in, lb/min60.1The actual kinetic energy available at the nozzleexit, Btu/lb148.5.The actual nozzle exit velocity, ft/sec 272+The required nozzle exit diameter, inches andF. The length of the divergent section of the nozzle,in inches, for an included angle of 12 degreesbetween nozzle sides.1,05C.D.E.0.72

Answered: Image /qna-images/answer/8f4fb095-d863-4a9d-8448-dfff0042678e.jpg

Answered: 7. A converging-diverging nozzle…

7. A converging-diverging nozzle receives steam at a pressure of 380 psia with temperature of 480F and expands it to a pressure of 50 psia. Assuming the

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

EMERGENY!!!! A perfect gas of adiabatic type expands from 1200K and 900kPa to 700k. Calculate the volumetric flow at the turbine inlet when the power generated by the turbine is 400kW. (CP=1.13kj/kg K Cu =0.83kj/kg K VE R=0.30 kj/kgK )
A compressor draws in 0.1 m/s of air at atmospheric conditions of 1.013 bar and 22°C and delivers it to a large receiver in which the air stabilises at a temperature and pressure 28°C and 310 kPa gauge. The air then discharges back to atmosphere through a converging diverging nozzle located in the side of the tank. Ignoring losses in the nozzle. Determine the: i. Mass flow of air entering and leaving the receiver. ii. The pressure, temperature and velocity at the throat. iii. The throat diameter of the nozzle. For air take R = 287 kJ/kg.K and y = 1.4 Isentropic Flow tables are needed for use with this question.
4-Steam flows through a device with a stagnation pressure of 120 psia, a stagnation temperature of 7008F, and a velocity of 900 ft/s. Assuming ideal- gas behavior, determine the static pressure and temperature of the steam at this state.
The dry and saturated steam at a pressure of 10.5 bar is expanded isentropically in a nozzle to apressure of 0.7 bar. Determine the final velocity of the steam issuing from the nozzle, when (a) friction is neglected, and (b) 10% of the heat drop is lost. The initial velocity maybe neglected
An ideal gas enters a turbine with a velocity of 40 m/s through an inlet pipe with a diameter of 160 mm. The ideal gas enters the turbine at a temperature of 660°C and a pressure of 800 kPa. The ideal gas leaves the turbine with a velocity of 150 m/s through an outlet pipe with a diameter of 100 mm. The power output from the turbine is 350 kW. The heat lost from the turbine to the surrounding amounts to 6% of the power output from the turbine. Changes in kinetic energy and potential energy can be neglected. For the ideal gas, use R = 0.287 kJ/kg.K and c, = 1.11 kJ/kg.K| i) Sketch the system/control volume for the above problem Show the boundary/control surface and energy interactions clearly in the sketch. 11) Determine the mass flow rate of the ideal gas, kg/s. i11) Determine the temperature of the ideal gas leaving the turbine, °C. iv) Determine the pressure of the ideal gas leaving the turbine, kPa. v) Suggest one way to increase the power output from the turbine.
None
12- Combustion gases (k=1.33) enter a convergent nozzle at a stagnation temperature of 350 oC and a stagnation pressure of 430 kPa and are vented to the atmosphere at 20 oC, 100 kPa. Which of the following is the lowest pressure that will occur in the nozzle?
Air enters a converging–diverging nozzle at a pressure of 1200 kPa with negligible velocity. What is the lowest pressure that can be obtained at the throat of the nozzle?
Nitrogen is expanded isentropically in a nozzle from a pressure of 2000 kPa, at a temperature of 1000 K, to a pressure of 101 kPa. If the velocity of the nitrogen entering the nozzle is negligible, determine the exit nozzle area required for a nitrogen flow of 0.5 kg/s. Assume the nitrogen to behave as a perfect gas with constant specific heats, mean molecular mass of 28.0, and y 1.4.
Air expands in a piston from V1=5L, P1=400kPa, T1=150C to V2= 20L, P2=150kPa. Boundary temperature is 18C while the work done is 2.5kJ. Assuming that it is an ideal gas and the specific heats are constant, find T2.
6.6. Air flows through a 0.25 m diameter duct. At the inlet the velocity is 300 m/s, and the stagnation temperature is 360 K. If the Mach number at the exit is 0.3, determine the direction and the rate of heat transfer. With the same conditions at the inlet, determine the amount of heat that must be transferred to the system if the flow is sonic at the exit.
Steam expands in a steam turbine isentropically from intet to exhaust having an enthalpy drop=1200 kJ/kg. Assuming ideal conditions determine the mean diameter of wheel if the turbine were of: (1) Single impulse stage. (i) Single 50% reabron stage.