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An air-standard Otto cycle has a compression ratio of 7.5. The maximum and minimum cycle temperatures are 1600 K and 300 K, and the minimum pressure is 100 kPa. Determine a) The cycle efficiency; b) the change of entropy during heat addition; c) the change of availability per unit mass during the expansion process.
a specimen of a 4340 steel alloy having a plane strain fracture toughness of 45 mpa m is exposed to a stress of 1000
8 x product engineering and design review (week 2 – 12), ~3 pages per item which must contain a brief description of the product then delve into concepts such as materials selection, manufacturing methods, life cycle analysis, recyclability and overa..
an open gas turbine is equipped with a regenerator. the compressor is 87nbspefficient with air entering the compressor
a cylindrical casting is 0.4 m in diameter and 0.6 m in length. another casting of the same metal is rectangular in
control engineeringyou have to design a control system for an annealing furnace. the furnace is used to anneal special
In a tubular low pressure chemical vapor deposition (LPCVD) reactor, gas is introduced at one end at a rate of 75 torr-L/min. At the other end is a vacuum pump of a speed Sp. If the reactor must operate at 1 torr, what value of Sp is required?
a vertical pipe conveying water tapers from 50 mm in diameter at the top to 25 mm in diameter at the bottom in a length
the waveform from a mechanical vibration is sensed by a velocity-sensitive vibrometer. the oscilloscope trave indicates
a piston cylinder arrangement contains 0.4 m3 of saturated water vapor at 200 kpa. the piston is resting on a pair of
assuming cold air standard assumptions for a spark ignition engine cycle otto and given the following data compression
if you are standing in a room that is held at a constant 75 f and your body temperature remains at a constant 98.6 f
An ogee spillway of a gravity dam is to be modeled using water. The spillway section is 40 feet high, its crest length is 60 feet and the maximum discharge is 3,000 CFS when the head on the crest of the spillway is 5 feet. Using a model scale of 1:10..
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