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Hot water traveling through a thick-walled steel pipe (k=60 W/m·K) is cooled externally by a cross-flow airstream at a velocity of 20 m/s at a temperature of 25ºC. The inner and outer diameters of the pipe are Di=20 mm and Do=25 mm. The hot water enters at 90ºC at a mass flow rate of 0.11 kg/s. What is the mean temperature of the water exiting the 20 meter long pipe? Assume that the entire flow is hydrodynamically and thermally fully-developed.
a for a rectangular coordinate system we developed the navier stokes equation for vx. now reduce that equation to
A stationary gas turbine power plant operates on a simple ideal Brayton cycle with air as the working fluid. The air enters the compressor at 95 kPa and 290 K and the turbine at 760 kPa and 1100 K. Heat is transferred to the air at a rate of 35,00..
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a car starts from rest and accelerates at a constant rate until it reaches 85 mihr in a distance of 110 ft at which
(a) The temperature profile as a function of radial position
What is the primary difference between the strength of a structure and the strength of a material? Is a strong material stiff?
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