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Water flows through a thick-walled tube with an inner diameter of 12 mm and a length of 8 m. The tube is immersed in a well-stirred, hot reaction tank maintained at 85°C, and the conduction resistance of the tube wall (based on the inner surface area) is R"cd = 0.002 m2 · K/W. The inlet temperature of the process fluid is Tm,i = 20°C, and the flow rate is 33 kg/h.
(a) Estimate the outlet temperature of the process fluid. Tm,o. Assume, and then justify, fully developed flow and thermal conditions within the tube.
(b) Do you expect Tm,o to increase or decrease if combined thermal and hydrodynamic entry conditions exist within the tube? Estimate the outlet temperature of the water for this condition.
a person weighing 800 lbf climbs a flight of stairs that extends a vertical distance of 300ft. calculate the work and
Calculate the deflection from torsional moment Mt and bending moment Mb and, then discuss the deflection from the torsional moment Mt compared to the result of 2-1)
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Dry air is contained in a tank with fixed volume at 200 degrees Celsius and a pressure of 5 bar. Then the fluid is heated so that its temperature reaches up to 300 degrees Celsius. If the volume of the tank is 0.2 m^3, find the transferred heat and f..
the drag characteristics of an airplane are to be determined by model tests in a wind tunnel operated at an absolute
(a) Find the angular velocity of link CD and the velocity of the pin relative to the slot in link CD. (b) Find the angular acceleration of link CD and the acceleration of the pin relative to the slot in link CD.
consider the steel balls from 5.6 except now the air tempincreases with time as tinft325kat where a 0.1875ks.asketch
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