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You are assined the task of process design for a fixed-bed carbon adsorber system. You are given the following data: the inlet airstream flows at 5000 acfm (at 95 degrees F and 1 atm) and contains .2% n-pentane by volume; the proper operating carbon capacity for n-pentane is 3.5 kg n-pentane per 100 kg carbon. What is the minimum amount (in kg) of carbon needed for each adsorber bed if you decide to have the system operate for 1 hour between bed regenerations?
Suppose an expert hypothesizes that the probability of a rainfall event causing a particular stormwater retention pond to overtop can be modeled with a beta (a, B ) distribution. Over n years of data collection, the percentages of rainfall events
Assume that bonding atoms touch one another, that the angle between adjacent bonds is 109.5, and that each atom internal to the unit cell is positioned a/4 of the distance away from the two nearest cell faces.
Engine Oil at 60 degrees C flows over a 3m long and 2m wide plate whose temperature is maintained at 20 degrees C with a velocity of 2 m/s. Determine the rate of heat transfer from the entire plate.
A before-and after speed study was conducted to determine the effectiveness of a series of rumble strips installed approaching a toll plaza to reduce approach speeds to 40 mi/h.
Why is granular activated carbon(GAC) used to treat the industrial wastewater stream but not the domestic wastewater stream
Saturated liquid water at 1.0 MPa is throttled adiabatically to a pressure of 0.4 MPa. If the change is kinetic energy is negligible, what percentage of the water evaporates during this throttling process?
A particle moves along the positive x-axis with an acceleration in meters per second squared which increases linearly with x expressed in millimeters, as shown on the graph for an interval of its motion.
A confined aquifer has a specific storage of 2.5 * 10^-6 /m . The porosity is .20 and the water compressibility is 5 * 10-10/Pa.For the aquifer skeleton compressibility you just calculated, what would the aquifer specific storage be if porosity were ..
if a manometer incline at 45 degrees containing a fluid with specific gravity of a 2.0 using it to measure the pressure in a system, and the fluid levels rise 30 inches. What is the pressure in the system in Lbf/In^2 and H2O
A section of a road has a superelevation of .6% and a curve of 600ft radius. What speed limit will you recommend at this section of the highway
A chemical plant produces a process wastewater that contains a relatively high concentration of a small number of nontoxic organic compounds, but very low concentrations of solids or salts. It has no odor.
a rectangular bar of length l has a slot in the middle half of its length. the bar has width b, thickness t, and modulus of elasticity E. the slot has a width b/4. the stress in the middle region is 24000 psi, the length is 30 in, andthe modulus o..
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