Question

Refrigerant-134a enters a diffuser steadily as saturated vapour at 600 kPa with a velocity of 160...

Refrigerant-134a enters a diffuser steadily as saturated vapour at 600 kPa with a velocity of 160 m/s, and it leaves at 700 kPa and 40°C. The refrigerant is gaining heat at a rate of 2 kJ/s as it passes through the diffuser : determine
(a- the exit velocity
(b- the mass flow rate of the refrigerant.
If the exit area is twice the inlet area (A2=2A1),
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Nitrogen gas at 50 kPa and 7°C enters an adiabatic diffuser steadily with a velocity of...
Nitrogen gas at 50 kPa and 7°C enters an adiabatic diffuser steadily with a velocity of 180 m/s and leaves at 109 kPa and 22°C. Determine (a) the exit velocity of the nitrogen and (b) the ratio of the inlet to exit area A1/A2
Nitrogen gas at 60 kPa and 78C enters an adiabatic diffuser steadily with a velocity of...
Nitrogen gas at 60 kPa and 78C enters an adiabatic diffuser steadily with a velocity of 275 m/s and leaves at 85 kPa and 278C. Determine (a) the exit velocity of the nitrogen and (b) the ratio of the inlet to exit area A1/A2. Reconsider Using EES (or other) software, investigate the effect of the inlet veloc- ity on the exit velocity and the ratio of the inlet-to-exit area. Let the inlet velocity vary from 210 to 350 m/s. Plot...
A saturated vapor of refrigerant 134a at 1000 kPa enters a nozzle with a negligible velocity....
A saturated vapor of refrigerant 134a at 1000 kPa enters a nozzle with a negligible velocity. It leaves the nozzle at 500 kPa. What is the maximum velocity it could have, in m/s? Hint: Remember that a nozzle does an energy conversion. The maximum velocity occurs when this is being done with the highest possible efficiency. What did you learn about entropy when efficiency is at a maximum?
Air at 10º C and 80kPa enters the diffuser of a jet engine steadily with a...
Air at 10º C and 80kPa enters the diffuser of a jet engine steadily with a velocity of. 200 m/s. The inlet area of the diffuser is 0.5 m. 2 . The air leaves the diffuser with a velocity that is very small compared with the inlet velocity. Determine a).the mass flow rate of the air b).the temperature of the air leaving the diffuser.
An ice-making machine operates on the ideal vapor-compression cycle, using R-134a. The refrigerant enters the compressor...
An ice-making machine operates on the ideal vapor-compression cycle, using R-134a. The refrigerant enters the compressor as saturated vapor at 140 kPa and leaves the condenser as saturated liquid at 600 kPa. Water enters the ice machine at 13oC and leaves as ice at -4oC, while removing heat at 393 kJ per kg of water. Estimate the mass flow rate of the refrigerant and the power input to the ice machine for an ice production rate of 7 kg/h.
Steam enters a diffuser at 250°C and 300kPa with an inlet velocity of 402 m/s. Steam...
Steam enters a diffuser at 250°C and 300kPa with an inlet velocity of 402 m/s. Steam leaves the diffuser at 350°C and 600kPa. The heat gain in the diffuser is 80 kW. The inlet area of the diffuser is 820 cm2. Determine the velocity and the volume flow rate of the steam at the diffuser exit.
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -12oC with...
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -12oC with a volumetric flow rate of 0.18 m3/s. Refrigerant exits at 9 bar, 70oC. Changes in kinetic and potential energy from inlet to exit can be ignored. Determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kW.
An unknown ideal gas enters a 25 cm-diameter pipe steadily at 250 kPa and 47C with...
An unknown ideal gas enters a 25 cm-diameter pipe steadily at 250 kPa and 47C with a velocity of 5 m/s. The ideal gas gains heat as it flows and leaves the pipe at 77C and 225 kPa. The gas constant of the ideal gas is R=0.285 kJ/kg.K. Determine: a) the volume flow rate at the inlet b) the mass flow rate c) the velocity at the exit
Water is used to cool R-134a in the condenser of a heat exchanger. The refrigerant enters...
Water is used to cool R-134a in the condenser of a heat exchanger. The refrigerant enters the counter-flow heat exchanger at 800 kPa, 80 0C and a mass flow rate of 2 kg/s. The refrigerant exits as a saturated liquid. Cooling water enters the condenser at 500 kPa and 18 0C and leaves the condenser at 30 0C. Determine the necessary mass flow rate of water. Each fluid is assumed to flow at constant pressure.
Refrigerant 134a enters a tube at a rate of 0.07 kg/s as saturated liquid at 70...
Refrigerant 134a enters a tube at a rate of 0.07 kg/s as saturated liquid at 70 C and leaves the tube as saturated liquid as well at -8 C. It loses 10 kW of heat to the surroundings in the process. If the surroundings are at a temperature 10 C, find the total entropy generation in this process. Assume steady conditions
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT