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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.
A piston-cylinder device is insulated and contains 0.005 m3 of saturated liquid water at a constant pressure of l50 kPa. An electric resistance heater inside the cylinder is now turned on, and 1800 kJ of energy is transferred to the steam.
major league baseball training camps are now just beginning. given a baseball with a mass of 9 ounces estimate the work
Once again, reading about t-test statistics and descriptive statistics is one thing. Actually using software to compute them requires different skill sets. This assignment is designed to give you the opportunity to practice using Microsoft Excel t..
Assume compressor and turbine efficiencies of 80% and 85%. A) find nth, T4a? B) what is nth if sum of regenarate efficiency is 80% installed?
The lower reservoir supplies water to the system. The upper reservoir supplies water for emergency use only, such as fire, line breaks, and so on; under normal operation, there is no flow into or out of it.
The output of the signal generator is changed to a sine wave at a frequency of 2000 Hz. The power level is not changed. What is the power (in dBW) dissipated in the resistor with the filter in place between the signal generator and load resistor?
An incompressible fluid flows past a flat plate, as in the figure below, with a uniform inlet profile and a polynomial exit profile.- Compute the volume flow Q across the top surface of the control volume.
A four-stroke engine has a total displacement volume of 10L, 125mm bore and 16.3:1 compression ratio. The engine produces a maximum of 210 kW at 2100 RPM. The intake air is at 45 degrees C and 22.5 g/s of air flow into each cylinder. Calculate the vo..
can anyone think of a device that biomimic the kinematics of a dolphin to enhance human swimming? any slim ideas is
per the linked problem i dont understand how the shear calculation is done. why is vf and vb 333.33 lb.ft? i understand
A liquid jet of velocity Vj and diameter Dj strikes a fixed hollow cone, as in Fig. P3.47, and deflects back as a conical sheet at the same velocity. Find the cone angle for which the restraining force
a weather ballon is launched into the atmosphere by meteorologists. when the balloon reaches an altitude where is is
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