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Determine the total induction length, from the point of intake entry of the tract to the head of the inlet valve, to optimize the wave ram effect at the following engine speeds: 2000, 3000, and 4000 rev/min. The crank angle for the pressure wave to travel through the tract form end to end and back again is ?t. Assuming an average values for ?t to be 85 degrees, and the velocity of sound in air to be C =330 m/s. Plot tract length (mm) versus engine speed from 1000 to 8000 rev/min.
air in a piston-cylinder device has 400 degrees f 1000 kpa with a volume of 3.5 ft3. combustion heats it to 1500 k in a
an automobile having a mass of 2 mg travels up a 7 degree slope at a constant speed of v100 kmh. if mechanical friction
jack who weighs 150 lbf runs 5 miles in 43 minutes on a treadmill set at a one-degree incline. the treadmill display
air flows through a convergent-divergent nozzle from a large reservoir in which the pressure and temperature are
question 1 a for the reciprocal lattice we know thatexpjg.r 1where g.r 2pit t an integernbsp r lambnc
a balloon in the upper atmosphere is filled with water vapor with a speci?c volume of 10 m3 kg. a if its volume is 25
a 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0-kg and a 40.0-kg child sits on the other
A component in the shape of a large rectangular sheet is made from AL-7075-T651. It carries uniform axial stress that may reach up to 50% of its yield strength. Assuming worst case scenario, what is the largest edge crack that can be allowed?
Nitrogen in a piston-cylinder assembly undergoes a polytropic expansion process. Initially, nitrogen is at 125 C and 144 kPa. Then it is expanded to a state of 102 kPa and 90 C. determine the heat transfer and work for the process considering no chan..
in cooling situations where the desired temperature range is large two refrigeration cycles can be stacked to create a
a tank with volume 3.0m3 contains steam at 2mpa and 280 c. the tank is heated until the temperature reaches 440 c. a
hot air steadily enters a gas turbine at 5 bar 900 k and exits at 1 bar 600 k and a velocity of 100 ms. the mass flow
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