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One way to put a steel wheel on a steel axel (for example on a railroad car) is to heat the wheel until it slides on the axel, then cool. Assume you have a 1 meter diameter steel wheel with a 10 cm diameter circular hole in the middle at room temperature (25 degrees C). You must put this on a 10.1 cm diameter axel. What temperature must the wheel be heated to? The linear thermal expansion coefficient for steel is 12*10^-6 degrees C^-1.
A Pitot-static probe connected to a water manometer is used to measure the velocity of air. If the deflection (the vertical distance between the fluid levels in the two arms) is 7.3 cm, determine the air velocity. Take the density of air to be 1.2..
a long rod is exposed at air at 298oc. it is heated at one end. a steady state condition the temp at 2points along the
Describe IN DETAIL how you could determine the required rate of heat addition or removal.
Determine the Biot number in order to support the lumped formulation. Solve the differential equation to find an expression for temperature as a function of time.
the outer surface of a spacecraft has an emissivity of 0.8 and an absorptivity of 0.3 for solar radiation. if solar
crude oil is fractioned by two separating columns. the incoming crude oil is composed of the following weight fractions
an office is occupied by 30 persons who each produce 200 btuh 58w of sensible heat and 0.25 lbh 0.1kgh of moisture. the
if the weight of a loaded truck is described by a normal distribution with a mean of 13.2 tons and a standard deviation
in a rankine cycle with reheat steam at 500c expands in a high pressure turbine until it reaches the saturated vapor
a .75 m3 rigid tank initially contains water at 250degc 50 liquid and 50 vapor by volume. a valve at the bottom of the
a liquid film is suspended on a rectangular wire frame. the length of the movable wire is 2 in. and the other dimension
consider incompressible viscous flow between two very long plates separated by a distance h. the bottom plate is
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