Question

For the air-jet shown below, determine the velocity (in m/s) of the air drawn in by the jet. The air supply is at an absolute pressure of 700,000 Pa (abs) and a velocity of 3 m/s. Total mixed air velocity (at the exit) is measured to be 8 m/s. 700 kPa 300 K 2.5 cm Air supply Mixed air flows 45 cm - p 101.3 kPa T-300 K 101.3 kPa 300 K Air drawn into pipe An air-jet consist of smaller diameter air-supply conduit within a larger conduit. The high-velocity jet draws atmospheric air into the larger.

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Given V2 = 3 m/s d2 = 2.5 cm v, #8 m/s dy = 4.5 cm p2 = 700 kpa Pa = 101.3 kpa T = 300 k P3 = 101.3 kpa T, = 300 k T2 = 300 k

Add a comment
Know the answer?
Add Answer to:
For the air-jet shown below, determine the velocity (in m/s) of the air drawn in by...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Q3- A tube is painted on the inside with naphthalene and has an inside diameter of...

    Q3- A tube is painted on the inside with naphthalene and has an inside diameter of 30 mm and a length of 1.10 m. Air at 31t k and an average pressure of 101.3XPa flows through this pipe at a velocity of 0.80 m/s. Assuming that the absolute pressure remains essentially constant, calculate the concentration of naphthalene 5.16 10 m/s at in the exit air. The P 75 Pa and DAn of naphthalene in air is 298 k and 101.3...

  • 7.24 A pump is used to pressurize air in a tank to 300 kPa abs. e tank has a diameter of 2 m and a height of 4 m. Th...

    7.24 A pump is used to pressurize air in a tank to 300 kPa abs. e tank has a diameter of 2 m and a height of 4 m. The initial level of water in the tank is 1 m, and the initial pressure at the tank water surface is 0 kPa gage. The atmospheric pressure is 100 kPa. The pump provides a constant head of 50 m. The water is drawn from a reservoir that is 4 m below...

  • Problem 3 (20 p): As drawn in the figure, a static push rod will be designed...

    Problem 3 (20 p): As drawn in the figure, a static push rod will be designed to test a jet moter. The following conditions are given for a typical test: Intake air velocity = 200 m / s; exhaust gas velocity = 500 m / s; section area uptake = m, inlet static pressure = -22.5 kPa = 78.5 kPa (absolute pressure); input static temperature = 268 K; exhaust static pressure = 0 kPa = 101 kPa (absolute pressure). Find...

  • A jet engine propels an aircraft at 289 m/s through air at 54 kPa and 267 K.

    A jet engine propels an aircraft at 289 m/s through air at 54 kPa and 267 K. The compressor pressure ratio is 9 and the temperature at the turbine inlet is 885 K. b) Taking the pressure in the combustion chamber as 843.5 kPa and the temperature at the turbine exit to be 518 K, determine the velocity of the exhaust gases. Give your answer in m/s to 2 decimal places Assume ideal operation for all components and constant specific heats at room...

  • The diffuser in a jet engine is designed to decrease the kinetic energy of the air...

    The diffuser in a jet engine is designed to decrease the kinetic energy of the air entering the engine compressor without any work or heat interactions. Calculate the velocity at the exit of a diffuser when air at 100 kPa and 30°C enters it with a velocity of 358 m/s and the exit state is 200 kPa and 90°C. The specific heat of air at the average temperature of 60°C = 333 K is cp = 1.007 kJ/kg·K.

  • 5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves...

    5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...

  • A water jet with a velocity of V; -8 m/s and jet diameter D; -10 cm...

    A water jet with a velocity of V; -8 m/s and jet diameter D; -10 cm impinges on a cup cavity. The water is turned 180° and exits, due to friction, at lower velocity of Ve= 4 m/s. Looking from the left, the exit jet is a circular annulus of outer radius (R) and thickness (h), flowing toward the viewer. The cup has a radius of curvature of R-10cm. Find the thickness of the exit jet (h=?cm) Oh=1.0 cm h...

  • Air steadily enters the diffuser section of a jet engine at a velocity of 270 m/s...

    Air steadily enters the diffuser section of a jet engine at a velocity of 270 m/s at 85 kPa and at 250 °C. There is heat addition from the diffuser walls to the air. The air exits the diffuser at 1/3 of its inlet velocity. The heat addition per kg air entering the diffuser is 13 kJ/kg. What is the change in the specific enthalpy of the air (kJ/kg)?

  • 4.23 In a jet engine a flow of air at 1000 K, 200 kPa, and 30...

    4.23 In a jet engine a flow of air at 1000 K, 200 kPa, and 30 m/s enters a nozzle, as shown in Fig. P4.23, where the air exits at 850 K, 90 kPa. What is the exit velocity, assuming no heat loss? Carbon dioxide used as a natural refrigerant flows out of a cooler at 10 MPa. 40°C, after which it is throttled to 1.4 MPa. Find the state (T, x) for the exit flow.

  • Air flows into the jet engine shown in Figure 3.2 at a rate of 130 kg/s...

    Air flows into the jet engine shown in Figure 3.2 at a rate of 130 kg/s and a speed of 254 m/s. Upon landing, the engine exhaust exits through the reverse thrust mechanism with a speed of in the direction indicated. Determine the reverse thrust applied by the engine to the airplane. Assume the inlet and exit pressures are atmospheric and that the mass flowrate of fuel is negligible compared to the air flowrate through the engine. (8 marks) V3...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT