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The intake duct to a fan consists of intake louvers, 5.8 m of square duct (800 x 800 mm), a sudden contraction to a 400-mm-diameter round duct, and 9.25 m of the round duct. Estimate the pressure at the fan inlet when the duct carries 0.80 m3 /s of air.
A counterflow heat exchanger operates at steady state with negligible kinetic and potential energy effects. In one stream, liquid water enters at 108C and exits at 208C with a negligible change in pressure.
Determine the rates of energy transfers by mass into and out of the compressor. Assume the kinetic and potential energies to be negligible.
What location on the van top will be the last to dry? What is the water evaporation rate per unit area (kg/s · m2) at the trailing edge of the van top?
a hail storm caused nearly golf-ball sized hail to fall on a house. the hailstones were nearly spherical with a
For T 5 808F, determine the steam quality at the turbine exit, the steam mass flow rate, in lb/h, and the thermal efficiency. Plot the quantities of part (a) versus T ranging from 80 to 1058F.
helium at 810 r 45 ibfin2 and a velovity of 10 fts enters an insulated nozzle operating at steady state and exits at
A new motorcycle is being developed to meet new gas mileage standards recently passed by the federal government. An engineer tested three model designs by randomly assigning the motorcycles in a blind study (the riders recorded the mileage but did no..
the wheel of the slider-crank mechanism shown in the figure is rotating counterclockwise at a constant rate of 10 rads.
A solid shaft of diameter D is used to carry an applied torque T. At the time of regular maintenance, engineers decided to replace it with an alternative shaft of hollow geometry with an inner diameter din = D. Considering that the maximum shear stre..
hyundai advertises a 10 year-100000 mile power-train warranty for its cars. you work for a competitor and want to see
Condensate exiting the feedwater heater as saturated liquid at 120 lbf/in.2 undergoes a throttling process as it passes through a trap into the condenser. The feedwater leaves the heater at 1400 lbf/in.2 and a temperature equal to the saturation t..
the heat input to a cold box is to be reduced by adding extruded polystyrene sheets p55kg m-3 k0.027w m-1 k-1 cp
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