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.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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5. A fluid system undergoes a non-flow frictionless process from 4.5 ft3 to a final volume 1.5 ft3 in accordance with the defining relation P= 60/V + 30 psi, where volume in ftº. During the process the system reject 30 BTU of heat. Determine the change in enthalpy and internal energy.
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.
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