Engineering, 18.12.2019 18:31 cheerthi16
You wish to capture particles with a 3 um radius suspended in a fluid that has a linear density gradient with a density of 1.12 g/cm3 at the bottom and 1.00 g/cm at the top. you layer a thin particle suspension on the top of the 6 cm column of fluid with a viscosity of 1.0 cp and allow particles to settle. a) how long must you wait for particles with a density of 1.07 g/cm to sediment to within 0.1 cm of their isopycnic level (i. e., within 0.1 cm of the position where the density of the particles and the density of the fluid are equal)? b) instead of settling due to gravity, you choose to use a centrifuge running at 800 rpm. if the top of the fluid is 5 cm from the center of rotation, how long must you run the centrifuge for the particles to move to within 0.1 cm of their isopycnic level?
Answers: 1
Engineering, 04.07.2019 19:10
Arigid tank contains 10 kg of air at 137 kpa (abs) and 21°c. more air is added to the tank until the pressure and temperature rise to 242 kpa (abs) and 32°c, respectively. determine the amount of air added to the tank. [r-0.287 kj/kg k]
Answers: 3
Engineering, 04.07.2019 19:20
Determine (a) the maximum thermal efficiency of reversible power cycles operating between a hot reservoir at 1000°c and a cold reservoir at 200°c and (b) the maximum cops for reversible refrigeration and heat pump cycies, respectively, between 28°c and 14°c.
Answers: 1
Engineering, 06.07.2019 03:20
Asimply supported beam abc of length l has ab of length hl and second moment of area / and bc of length hl and second moment of area i2. determine the strain energy stored in the beam when it is subject to a vertical load f at its midpoint and the consequential central deflection.
Answers: 2
Engineering, 06.07.2019 03:20
Steam at a pressure of 100 kpa and a quality of 50% initially fills a rigid vessel having a volume of 0.5 m^3. the steam is then heated, causing the pressure in the vessel to rise to 150 kpa. determine: i. the mass of the steam in the vessel. ii. the temperature and quality of the steam after the heating process. ii the mass of the vapour, mg and liquid, m in the vessel after the heating process. if the steam in the vessel is now further heated, what would the pressure and temperature in the vessel be when all steam has turned into saturated vapour? b. sketch the processes in part (a) and part (b) on p-v and t-v diagrams, indicating clearly the temperatures, pressures and the paths. c. (0.59kg, 111.4°c, 73%, 0.4307kg, 0.1 593kg, 2.11 bar, 121.84°c)
Answers: 1
You wish to capture particles with a 3 um radius suspended in a fluid that has a linear density grad...
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