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A two-bed carbon adsorption system is to be designed to handle 8000 acfm of air containing 700 ppm of hexane. Laboratory studies indicate that carbon can adsorb 8lb hexane per 100 lb carbon under the conditions at which the system will be operated. If the system is to operate at 90 F and 1.0 atm at a removal efficiency of 99%, determine the approximate dimensions of each carbon bed. Bed regeneration and cooling will require one hour.
Assuming a rectangular bed 2w - L 2w^2=A
How work this problem?
A second load P2 is uniformly distributed around the cap plate at B. The diameters and thicknesses of the upper and lower parts of the post are dAB= 1.25 in, tAB= 0.5 in, dBC= 2.25 in and tBC= .375 in respectively.
assume lateral support at each support and every 20 ft between supports. assume constant depth for girder. use A 572 grade 50steel. use LRFD methods. minimum web thickness is 5/16 inches.
Reservoir A (water surface elevation = 1300 ft) is connected to reservoir B (water surface elevation=250 ft) by 6,000 ft of 14 inch diameter cast iron pipe (e = 0.005 ft. Neglecting all minor losses
The elevation of water in well A is 300m above sea level and well B is 350m above sea level. The wells are 45m apart. A dye test reveals that the specific discharge between the two wells is about 2.75m/day.
A rigid horiztonal bar is suspended from two springs and is subjected to a vertical force of F0 = 158.8 kips. Each spring has a stiffness k = 14.7 kips/inch. If L1 = 11 inches and L2 = 11 inches, use strain energy to calculate the deflection of th..
The compound interest formula is F=P(1+i)n where F is the total amount due, P is the initial cost or amount of money, i is the interest rate, and n is the number of periods interest is computed. 1.A student purchases a $1400 laptop computer for sc..
describe the measurements that would have to be taken and the equations that would have to be used to determine G23, V32, and E2 for a specially orthotropic transversely isotropic material from a single tensile test.
What roles should technical experts like water engineers play in public policy decision-making issues, such as water demand management, water reuse and associate water quality issues
A steel scuba tank is 24 in. long and has an external diameter of 7.25 in. and an internal diameter of 6.7 5in. Say the tank is to carry a pressure of 3000psi . Determine the hoop stress in the tank wall. Determine the axial stress in the tank wal..
For a trapezoidal shaped channel (n=0.014 and slope = 0.0002 with a 20-ft bottom width and side slopes of 1:1.5 (V:H), determine the normal depth using trial and error technique for a discharge of 1000 cfs.
Find the maximum shearing stress and its location in the shaft and the angle of twist of A with respect to C. Let G = 4x10^6 psi for the entire shaft.
If the atmospheric pressure is 14.20 psia and a gage attached to a tank reads 12.5 inHg vacuum, what is the absolute pressure within the tank
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