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Argon gas enters a adiabatic compressor at 20psia and 90 F with a velocity of 60 ft/s, and it exits at 200 psi and 240 ft/s. If the isentropic efficiency of the compressor is 80%, determine (a) the exit temperature of the argon and (b) the work input to the compressor.
steam having pressure 4.0 mpa and temperature of 880 k enters the turbine installed in a power plant at the rate 500
Water is being pumped from a large lake to a reservoir 30 m above at a rate of 5x10-3 m3/s by a 12 kW (shaft) pump. If the irreversible head loss of the piping system is 8m, determine the mechanical efficiency of the pump.
the inner surface of a hollow cylinder internally pressurized to 100mpa experiences tangential and axial stresses of
calculate the diffusion coefficient for copper in aluminum at 600 degree celsius. preexponential and activation energy
How many engagement points on the flywheel would be necessary to make this machine safe? Show your work.
A power outage occurred at a water distribution pump station. Before the power outage the station was pumping with one pump at 6,000 gpm in a 18" diameter Steel Pipe
in a railroad switchyard a 50 ton freight car is sent at 7.4 mih toward a 27 ton car that is moving in the same
The external heat transfer coefficient is h=10 W/m^2*K. What is the rate of heat loss to the ambient?
in each case calculate the biot number for the object and indicate whether or not the lumped approximation is valid.a a
the refrigerant is now heated at constant pressure until its temperature rises to 333k. calculate the work done during this process.
determine the smallest horizontal force required to lift the 260- crate. the coefficient of static friction at all
an alternation copolymer is known to have a number-average molecular weight of 200000nbspand a degree of polymerization
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