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A settling chamber is used to remove particles from an air flow. Settling chamber height is 3 m and residence time of air in the chamber is 10 s.
(a) What minimum particle-settling velocity is required, if all particles are to be removed?
(b) What is the minimum-size particle that the chamber would remove?
The particle density is 1 g cm-3, air viscosity is 1.69 X 10-4 g cm-1 s-1 , and the air density is small enough that the buoyancy force may be ignored. Express your answer as particle diameter in ion.
vehicles begin to arrive at a toll booth at 850 am with an arrival rate of xt 4.1 .01t with t in min and xt in veh
the most famous geyser in the world old faithful in yellowstone national park has a mean time between eruptions of 85
Submit the CostWorks format, including all the data and calculations used to estimate the bare cost of the diesel generator.
Determine the unfactored dead load and live load on a typical interior roof beam, sketch the loading on the beam, and draw the shear and moment diagrams for the beam assuming the beam is simply-supported.
If the aircraft flies at 9000 m standard altitude, make a plot of drag (in N) versus speed (from stall to 240 m/s) and determine the optimum emise velocity (minimum drag per unit speed).
Design a cyclone that has a collection efficiency between 80% and 85% (use parcticle size distribution given below). you must assume a dpc of 4.2 microns,an inlet gas velocity of 25 m/s and a K of 15.The unit must handle 20,000 cfm of contaminated ..
Determine the volume of direct surface runoff in acre-ft that will result from the following storm. The basin area is 1000 acres. The phi index is 0.5 in./hr. 30-minute period 1 2 3 4 Rain intensity (in./hr) 0.9 0.5 0.6 0.5
The discussion must address phase angle relationships of current and voltage. The answer must include the effect of source frequency on the voltage drops across the resistor and the inductor at very low and very high frequency values.
Water under a gage pressure of 65 psi flows with a velocity of 12.5fps through a right-angled bend that has a uniform diameter of10in. The bend lies in a horizontal plane
Why canÕt the surface be nished in one operation, instead of waiting for hours before nal nishing?
A pipeline 1200 ft long and 8 in. in diameter has at its inlet point 75ft of available hydraulic energy with respect to the reference level. The velocity in the pipe is 5 fps: the pressure at its end is 12psi.
Determine the thickness of the viscous sublayer in a smooth 20 cm diameter pipe, if the Reynolds number is 25000.
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