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Nitrogen gas enters a diffuser at 100 kPa and 110 degrees C with a velocity of 205 m/s and leaves at a 110 kpa and 45 m/s. It is estimated that 2.5 kJ/kg of heat is lost from the diffuser to the surroundings at 100 kpa and 27 degrees C. The exit area of the diffuser is .04 m^2 . Accounting for the variation of the specific heats with temperature, determine:
a) the exit temperatureb) the rate of exergy destructionc) the second law efficiency of the diffuser
a hollow-fiber dialysis unit is one design that provides a large surface area between blood and dialysate to permit
air at 80 degrees fahrenheit and 80 percent relative humidity is cooled to 51 degrees fahrenheit at a constant pressure
Titanium in the BCC structure has a radius of 0.1423 nm.
What is the packing density
liquid water at 50degc and 1 mpa is mixed with superheated steam at 200degc and 1 mpa in an open feedwater heater
assume that a jet touches down 170 mph and its speed is reduced to zero in 240 ft. assuming a constant deceleration
A Pitot-static probe connected to a water manometer is used to measure the velocity of air. If the de?ection (thevertical distance between the ?uid levels in the two arms) is 7.3 cm, determine the air velocity. Take the density of air to be 1.25 k..
a rugged instrument used frequently for monitoring gas velocity in smoke stacks consists of two open tubes oriented to
round your final answers to three decimal places. the liquid leaving the condenser of a 115000-btuh heat pump using
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in the design of an automobile radiator an engineer has a choice of using either a brass-copper alloy casting or a
a sealed cylindrical vessel of 60 cm diameter and 80 cm height contains 3.2 kg of a gas. the pressure measured with a
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