Engineering, 21.11.2019 22:31 daydallas01
The average flow speed in a constant-diameter section of the alaskan pipeline is 2.5 m/s. at the inlet, the pressure is 8.25 mpa (gage) and the elevation is 45 m; at the outlet, the pressure is 350 kpa (gage) and the elevation is 115 m. calculate the head loss in this section of pipeline.
Answers: 1
Engineering, 03.07.2019 15:10
If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.
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Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
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Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
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Engineering, 04.07.2019 18:10
Burgers vector is generally parallel to the dislocation line. a)-true b)-false
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The average flow speed in a constant-diameter section of the alaskan pipeline is 2.5 m/s. at the inl...
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