Engineering, 01.05.2021 14:00 cherry12345627
Air is stored in a tank of 2 m2 in volume at a pressure of 3 MPa and a
temperature of 300 K. The gas is discharged through a converging nozzle
with an exit cross-sectional area of 0.0012 m'. For a back pressure of
101 kPa, find the time required ·for the tank pressure to drop to 300 kPa.
Assume quasi-steady flow through the nozzle, where the steady !low
equations are applicable at each instant of time. Also assume that the
temperature of the air in the tank Is constant.
Answers: 2
Engineering, 03.07.2019 15:10, EmilySerna
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
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Engineering, 04.07.2019 18:10, anna22684
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
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Engineering, 04.07.2019 18:20, 1230bering
Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
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Engineering, 04.07.2019 18:20, rjone8429
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Answers: 1
Air is stored in a tank of 2 m2 in volume at a pressure of 3 MPa and a
temperature of 300 K. The g...
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