Engineering, 26.07.2019 16:20 amandaelisantos
Hot air flows through a pipe, as shown above. the properties of air may be taken as: k=0.03 w/m-k, pr=0.7, μ=208.2 x 10"n s/m^2 and ρ=0995 kg/m^3. calculate heat transfer coefficient between the inner surface of the pipe and the hot air.
Answers: 2
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
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
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
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Engineering, 04.07.2019 18:10
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Hot air flows through a pipe, as shown above. the properties of air may be taken as: k=0.03 w/m-k, p...
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