Engineering, 11.10.2019 18:40 alyviariggins
Along 8-cm diameter steam pipe whose external surface temperature is 90°c connects two buildings. the pipe is exposed to ambient air at 7°c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 50°c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 10°c, determine (i) the length of the tube for an exit temperature of the air to be 40°c (ii) the rate of heat transfer from the air and (iii) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
Engineering, 04.07.2019 18:20, kodyclancy
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
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Engineering, 04.07.2019 18:20, esmemaluma00
Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
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Engineering, 04.07.2019 18:20, miguel454545
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
Engineering, 04.07.2019 19:10, ultimateapes
When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?
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Along 8-cm diameter steam pipe whose external surface temperature is 90°c connects two buildings. th...
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