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A 2 cm-thick composite plate has electric heating wires arranged in a grid in its centerplane. On one side there is air at 20 degrees Celcius, and on the other side there is air at 100 degrees Celcius. If the heat transfer coefficient on both sides is 40 [W/(m^2)-K], what is the max allowable rate of heat generation per unit area if the composite temperature should not exceed 300 degrees Celcius? Take k = .45 [W/m-K] for the composite material.
a steam power plant operates on the ideal reheat rankine cycle. steam enters the high-pressure turbine at 6 mpa and 400
A mixture of dry air and water vapor is at a temperature of 21C under a pressure of 101.3 kPa.The dew point temperature is 15C.(Ps= saturation pressure at 15C=1.7044 kPa;Pd=saturation pressure at 21C=2.4861 kPa) find humidity ratio and relative hu..
one kmol of ideal gas cp30 jmolk is contained in a piston cylinder initially at 25c and 10bar. the mass of the piston
a no. 120 roller chain operates on a small sprocket of 12 teeth. calculate and plot the curves for horsepower vs. speed
suppose that a wing component on an aircraft is fabricated from an aluminum alloy that has a plane strain fracture
it is desired to compare the results of property predictions for water near or in the saturation region using a the
steam at 2 kg s enters a turbine at 6000 kpa and 600 c and exits as saturated vapor at 20 kpa. the turbine produces
electricity can be directly used to heat a home by passing an electric current through a heating coil. this is a direct
assume the cost of a robotic system is 151. the salary and other costs of workers replaced is 27 the saving for using
what is the percent error in specific volume if the ideal gas model is used to represent the behavior of superheated
the image for this problem can be found through this link httpimgur.comfqjt0w5 please show all workformulas so that i
at a given instant train e has a speed of 20ms and an acceleration of 14ms2 acting in the direction shown 75 degrees to
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