Engineering, 02.03.2021 02:50 gatorboy1788
In a lab experiment, pure methane at a pressure of 3 atm and room temperature is pumped through the circular end of a small cylindrical core plug with cross-sectional area 1 cm^(2), length 1 cm, and permeability 100 mD. The pressure at the output is 1 atm. What is the volumetric flow rate at the output? Use Darcy's Law
Answers: 2
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
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Engineering, 04.07.2019 18:10
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The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false
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Engineering, 04.07.2019 19:10
Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?
Answers: 3
In a lab experiment, pure methane at a pressure of 3 atm and room temperature is pumped through the...
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