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Air is compressed by 10.50-kW compressor form P1 to P2. The air temperature is maintained constant at 26ºC during this process as a result of heat transfer to the surrounding medium at 10ºC. Determine the rate of entropy change of the air.
Fireclay brick of dimensions 0.06 m x 0.09 m x 0.20 m is removed from a kiln at 1600 K and cooled in air at 40oC with h=50 W/m2/K. What is the temperature at the center and at the corners of the brick after 50 minutes of cooling?
Calculate the force required in direct extrusion of 1100-O aluminum from a diameter of 6 in. to 2 in. Assume that the redundant work is 30% of the ideal work of deformation, and the friction work is 25% of the total work of deformation.
air flows on both sides of a counterflow heat exchanger operating at steady state with a mass flow rate of 1 lbs on
an ideal gas flows into one end of a porous cylinder at a temperature of 400 degrees k and out the other end at a
during a test of a metal bar it was found that an axial tensile force of 10000 lb resulted in an elongation of 0.023
a .005 m3 quartz tube is filled with proper proportions of liquid water and water vapor at 100 kpa. it is then sealed
consider a conical pendulum that is a ball of mass m at the end of a string of length li moving in a horizontal circle
We are concerned about carbon content in steel. It has a direct effect on the yield and tensile strength of what is formed in what is called a hot rolled condition directly from the steel production facility. 1010 steel has yield strength of 180MPa, ..
a one dimensional wall of material kw10wmk is 50 mm thick with uniform heat generation qlsquolsquolsquo5106wm3. the
Complex loading (bending and compression), A steel chimney is 28m high, 1.4m external diameter, and 20mm thick. It is rigidly fixed at the base and is acted upon by a horizontal wind pressure of intensity 1.
a double acting hydraulic cylinder rod diameter frac34 inches is used to compress garbage. this operation requires a
a pure jet engine propels an aircraft at 250 ms through air at 45 kpa and -13 degc. the inlet diameter of this engine
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