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Question: A converging-diverging nozzle is designed to generate an exit Mach number of 2. The nozzle is supplied with air from a large reservoir in which the pressure is kept at 6.5 MPa. Assuming one-dimensional isentropic flow, find
a. The maximum back-pressure at which the nozzle will be choked
b. The range of back-pressures over which there will be a shock in the nozzle
c. The design back-pressure
d. The range of back-pressures over which there is supersonic flow on the nozzle exit plane.
an internal crack has been detected with ultrasonics in the shell of a large cylindrical steel pressure vessel. the
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compute the second specimen's radius after deformation.
refrigerant r-134a with a mass of 0.08 kg is expanded adiabatically from a superheated vapor at 10 bar 40 c to a
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calculate the size h of the two welds required to attach a plate to a frame as shown in figure. if the plate supports an inclined force P=50kn. use a factor safety of 3 and yield shear stress of 350 mpa for the weld material
Use the function for thermo data evaluation in the matlab toolbox to compute species thermo data and kp of the reaction 2CO2= 2CO + O2 for T=3000K. Solve the equilibrium concentration manually by solving the progress variable first (Show the procedur..
a preheater involves the use of condensing steam at 100? on the inside of a bank of tubes to heat air that enters at 1
Air at 40°C enters a mixing chamber at a rate of 225 kg/s where it mixes with air at 15°C entering at a rate of 540 kg/s. Calculate the temperature of the air leaving the chamber, assuming steady.flow conditions. Assume that the heat loss is negli..
a solid circular shaft and a tubular shaft both with the same outer radius of cco 0.600in are being considered for a
A Closed, Rigid tank contains a two-phase liquid-vapor mixture of Refrigerant 22 initially at -20oC with a quality of 50.36%. Energy Transfer by heat into the tank occurs until the refrigerant is at a final pressure of 6 bars. Determine the final tem..
What does the Coase theorem suggest will take place?
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