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A balanced-cross-flow compact heat exchanger is required for an air heating system that processes 0.5 kg/s air. The inlet temperature for the hot water is 295 K, and the cold air enters at 270 K to be heated to 287 K. The inlet pressure for the hot water is 986 mbar. Determine the dimensions of the heat exchanger with a pressure drop of 3300 Pa.
the allowable shearing stress is 15ksi in a steel rod ab and 8ksi in a brass rod bc. knowing that a torque of magnitude
Combustion in a cylinder causes the pressure to increase, which moves the piston a distance (x) of 7 inches. The piston is held in place by a spring ( k=60lbfin) that was at its relaxed length before the combustion process. How much work did the expa..
dry ice 560 g is introduced into an evacuated 20l container. the temperature rises and co2 vaporizes. if the pressure
Describe on your own words the three strengthen mechanism for metals (i.e. grain size reduction, solid solution strengthening and strain hardening). Be sure to explain how dislocations are involved in each of the strengthening techniques.
two pipes are connected together in series. the diameter of one pipe is twice the diameter of the second pipe. with
use muller method to determine the real and complex roots offx x3 - x2 3 x - 2fx x4 - 2 x3 5 x2 - x - 10and write a
an alcohol manufacturing facility emits air with 500 ppm ethanol. the air flows out several roof vents at a total flow
You are asked to measure non-destructively the yield strength and tensile strength of an annealed 65-45-12 cast iron structural member. Fortunately, a small hardness indentation in this structural design will not impair its future usefulness, which i..
a piston-cylinder assembly contains propane initially at 27degc 1 bar and a volume of 0.2 m3. the propane undergoes a
a good aluminized layer is desired to be achieved by dipping clean steel in hot molten aluminum. for al to adhere to
suppose the past data indicates that the probability of a fluorescent light produced from a production line has a
determine the mass and the weight of the air contained in a room whose dimensions are 6m x 6m x 8m. assume the density
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