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Pin fins are to be specified for use in an industrial cooling application. The fins will be subjected to a gas in cross flow at V = 10 m/s. The cylindrical fin has a diameter of D = 15 mm, and the cross-sectional area is the same for each configuration shown in the sketch.
For fins of equal length and therefore equal mass, which fin has the largest heat transfer rate? Assume the gas properties are those of air at T = 350 K.
Knowing that the weights of boxes B and D are 9 lb and 90 lb, respectively, determine the range of values of the weight of box A so that the plank remains in equilibrium when box C is removed.
a shell and tube heat exchanger consists of a tubecarrying a fluid to be heated or cooled surrounded by another fluid
Using the ideal gas model with specific heat ratio, k = 1.4, and ignoring potential energy effects, determine (a) the exit velocity, in m/s, and (b) the rate of heat transfer, in kJ per kg of gas flowing through the nozzle.
Draft a designfor an activated sludge process operating as a CSTR based on the following Monod kinetic parameters
Determine the radial load carried by each bearing - determine the bearing loads for the opposite direction of motor rotation.
consider a hollow steel sphere of inside radius r110 cm and outside radius of r220 cm. the thermal conductivity of the
Determine the diameter of pipe that should be selected. Use (a) the Moody diagram and (b) an alternate equation.
explain the differences between the plane stress fracture toughness and the plane strain fracture toughness. for a
Equation of an elastic curve, Given the equation of the elastic curve for a simply supported beam, how would you obtain the slope in the beam, since the equations are related?
What is the upper limit to the Earth's velocity with respect to the ether set by this experiment? For comparison, the Earth's orbital velocity around the Sun is 30 km/s.
Write a summary of the following chapter- "Engineering Design" and "Jurneys in Product Development".
heated air at 1 atm and 100 degrees f is to be transported in a 400 ft long circular plasitc duct at a rate of 12ft3s.
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