Engineering, 30.03.2020 18:00 sarrivera579
A stainless-steel wall (AISI 302) is 0.2 m thick with the top surface at a temperature 40°C and the bottom surface at a temperature 100°C. Water, at [infinity] 25°C, flows over the top surface. Find the water flow convection coefficient, the temperature gradient in the wall and the temperature gradient in the water that is in contact with the wall. Assume steady-state conditions and evaluate the properties of the stainless-steel at 400 K.
Answers: 3
Engineering, 04.07.2019 18:10
Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.
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Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
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Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
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Engineering, 04.07.2019 18:20
Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis
Answers: 1
A stainless-steel wall (AISI 302) is 0.2 m thick with the top surface at a temperature 40°C and the...
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