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Hot water at 98°C flows in a schedule 40 horizontal steel pipe and is exposed to atmospheric air at 10°C. The water velocity is 20 cm/s. The inside heat transfer is in the turbulent region and you can use the Dittus-Boelter Equation to calculate the heat transfer coefficient. Calculate the heat transfer coefficient inside the pipe.
the surface of a steel gear made of 1020 steel 0.20 wt c is to be gas-carburized at 927 deg c. calulate the carbon
water droplets at 87 0c in a cooling tower have an average diameter of 0.15 cm. the airstream which moves at a velocity
a 580 n uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal 6.00-m-long uniform 90-n
a car drives over the top of a hill that has a radius of curvature of 100 ft. if the normal component of acceleration
You are to supply a design for an engine room crane which will provide maintenance support for the main engine. Your design should include the rails the crane will sit on.
using a lumped parameter analysis find the heat transfer coefficient across the gills of a fish. assume the process is
The bent rod ABDE is supported by ball-and- socket joint at A and E and by the cable DF. If a 600-N load is applied at C as shown , determine the tension in the cable.
a rigid vessel contains 10 kg of steam. the steam is initially at 10 bar and 300 c. after a period of time the pressure
a tensile force of 4200 lbs is applied to a 9 feet long 8515 brass rod. an elongation of 0.36 inch is measured on the
consider the function fxx3-2x4 on the interval -22 with h0.25. use the forward backward and centered finite difference
a distillation column as shown in the figure to the right is a device used to separate components with different
refrigerant 22 is used in the evaporator pipe of a commercial refrigeration unit. at steady state it flows at a rate of
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