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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?
The sample is placed in a 103 F oven overnight and is weighted again the next day. If the weight after drying is 0.85 lb and the specific gravity of the soil granuals is 2.65, what is the porosity of the soil sample
How many gallons of mercury (sg=13.54) would weight the same as 5 gallons of castor oil which has a specific weight of 56.69 pcf?
Annual rainfall over the watershed is 36 inches and the annual runoff from the catchment is 12 inches. Evaporation from the reservoir averages 40 inches per year. The municipal water demand equals 100 million gallons per day
The kill of pathogens by disinfection in water treatment can be described by a first order reaction. Complete a reactor comparison for a batch reactor, CSTR and PFR for disinfection. The treatment plant produces 100 L/s of water.
a cantilevered bean has a lenght of L, a cross section area of A, and a flecural rigidity of EI. The free end is free to rotate and displace due to bending. derive the stiffnes of the cantilevered bean. Assume small deformations.
Zwango Plus Manufacturing experts that fixed costs of keeping its Zephyr Hills Plant operating will be $1.4M this year. If the fixed costs increase by $100,000 each year, what is the EUAC for a 10-year period Assume the interest rate is 12%.
what is the second year book value for equipment with an initial cost of $11,000, a salvage value of 1,000 and a recovery period of 5 yrs for A. straight line depreciation. B. Double declining balance. C. MACRS
A construction firm purchased 3 tractors from a certain company. At the end of the fifth year, let E1, E2, E3 denote, respectively, the events that tractors no. 1, 2, and 3 are still in good operational condition.
When Eurasia restaurant, serving Eurasian cuisine, first opened along Chicago's Michigan Avenue, its novelty brought many diners.
Determine the uniform flow depth in a rectangular channel 2.5 m wide with a discharge of 3 m3/s. The slope is 0.0004 and Manning's roughness coefficient is 0.015
You are a construction engineer working on a large concrete foundation project, involving the placement of over 500,000 c.y of concrete. The construction site is adjacent to a salt-water source (bay) & it is decided to set up a concrete batch plan..
A stream of Refrigerant-134a at 1 MPa and 12 C is mixed with another stream at 1 MPa and 60 C. If the mass flow rate of the cold stream is twice that of the hot one, determine the specific volume of the exit stream.
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