Explain the fin with least weight for a given heat flow
Suppose you have a choice between a straight triangular or rectangular fin constructed of aluminum with a base thickness of 3.0 mm. The convection coefficient is 50 W/m2 · °C. Select the fin with the least weight for a given heat flow.
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Determine the reactions at pin locations A, B, and C (as scalar components with a unit of kN for a force and kN-m for a moment).
A four cylinder four stroke diesel engine has a bore of 212 mm and a stroke of 292 mm. At full load at 720 rev/min the bmep is 5.93 bar and the specific fuel consumption is 0.226 kg/kW h.
Calculate the rate of heat transfer per unit surface area by radiation between two brick walls a short distance a part when the temperature of the surface are 30 degree Celsius and 15 degree Celsius.
Find the standard normal curve area that lies: (a) between z = -0.77 and z = 0.77; (b) to the right of z = -1.39. Find the standard normal curve area that lies (a) to the left of z = 0.27
The pressure in a steam main is 12 bars. A sample of steam is drawn off and passed through a throttling calorimeter, the pressure and temperature at exit from the calometer being 1 bar and 140 degree C respectively.
A piston-cylinder assembly contains 2 lb of water, initially at 300°F. Determine the work and heat transfer for each of the two processes, all in Btu.
The probability that a randomly selected 2-year-old male feral cat will live to be 3 years old is 0.88493 (a) What is the probability that two randomly selected 2-year-pld male feral cats will live to be 3 years old? (B) What is the probability th
A pro golfer can hit a ball at V=240 ft/s and ? = 9000 RPM. To model these conditions in a wind tunnel which has a maximum speed of 80 ft/s, what diameter model must be used? How fast must the model rotate? A standard diameter for a golf ball is 1
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