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 in?. At theexit, the pressure is 400 lb;/in? and the velocity is negligible. The diffuser operates at steady state and potential energy effects can beneglected.Determine the mass flow rate, in Ib/s, and the exit temperature, in °F.

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Answered: Refrigerant 134a enters an insulated…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Section: Chapter Questions

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Twenty pounds per second of steady-flow steam enters a nozzle at P1 = 200 psia and 1059.67°R, and a velocity of 10ft/s. At steady state, the exit conditions are P2 = 100 psia and velocity = 600 ft/s. Find the exit temperature of the nozzle, in °F. Assume that the heat transfer and change in P.E. are negligible.
A mixing vessel initially contains 3,936.2 lb of liquid fluid. The vessel is fitted with two inlet pipes, one delivering hot fluid at a mass flow rate of 0.216 Ib/sec and the other delivering cold fluid at a mass flow rate of 0.94 lb/sec. Fluid exits through a single pipe at a mass flow rate of 1.268 Ib/sec. Calculate the amount of fluid, in lb, in the tank after 24 minutes.
A reheat cycle with two stages of reheating is executed with steam expanding initially from 25 MPa and 600 °C. The two reheater pressures are 4 MPa and 1 MPa, and the steam leaves each reheater at 600 °C. Condensation occurs at 40°C. For 1 kg/s of steam, what is QA in kW? Remember, 1. For values taken from the steam tables: Use them as is, do not round off. 2. For values obtained by interpolation and final answers obtained by solving, use FOUR (4) decimal places. 3. Use the steam tables provided
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Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the inlet are 590°R and 150 ft/s, respectively. At the exit, the temperature is 500°R and the pressure is 40 Ib;/in?. The area of the exit is 0.0085 ft2. Use the ideal gas model with k = 1.67, and neglect potential energy effects. Determine the velocity at the exit, in ft/s, and the mass flow rate, in Ib/s.
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?
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
20. A certain gas steadily flows through a engine at constant temperature of 400 K. The exit pressure is one-third of inlet pressure of 2.07 kg/cm². If AP = 0, AK = 0, the work of steady flow is, a-126 b-128 c 128 d 126

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