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1.A discharge of 18 cfs flows through the pipes. The friction factors for the pipes are 0.0215, 0.0194, and 0.0182, from top to bottom. Compute the head loss.
2.Calculate the length and diameter of the reaction zone of an afterburner that treats 2000 acfm of polluted air (measured at 250 F). The gases in the afterburner are at a temperature of 1400 F for a residence time of 0.50 sec. Assume the burner will bring in 10 acfm of methane and 350 acfm of outside air (both measured at 80 F and 1atm). The gas velocity in the afterburner is 20ft/sec.
3.The preheaded waste gas stream of 4,000 ACFM is entering a thermal oxidizer. The waste gas stream temperature is 1000 F. How much natural gas is needed to incinerate this gas stream at a temperature of 1500F?
It is proposed to make a new pedestrian access running directly south from University Square to Silvertown. The physical barriers that need to be overcome are the Royal Docks and the City Airport runway.
A plastic-manufacturing plant emits 1,700 scfm of exhaust at 200oC and 90 kPa. The exhaust (consisting of mostly air) contains 9 ppm phenol vapor (C6H5OH). What is the concentration of phenol vapor in the exhaust in µg/L
a 96-in diameter cast iron pipe carries water at 60f. the head loss due friction is 1.5ft per 1000ft of pipe. what is the dischage capacity of the pipe
You may pay $15,000 for an annuity that pays $2500 per year for the next 10 years . You want a real rate of return of 5% , and you estimated inflation will average 6% per year.
One accident mitigation procedure is called emergency material transfer, in which the material is transported away from the accident site before it becomes involved. We plan on mitigating a crude oil tank fire scenario by pumping the tank empty in..
An asphalt mixture is placed and compacted. Two tests are taken from the compacted mixture and checked for density. Core 1 had a density of 2403 kg/m3 and an air void content of 6.5%. Core 2 had a density of 2419 kg/m3.
two pieces of steel are held together with six bolts. one end of the first piece of steel is welded to a beam and the
A piston-cylinder device contains 2 kg saturated water vapor at 600 kPa. The water expands adiabatically until the final pressure is 100kPa. And 1,465 kJ work is produced.
assuming the entire system has reached equilibrium what is the distance that must be used between the inputs shown and
A circular torus of mean radius R has a thin walled circular cross-section of mean diameter d . Calculate the radius r of the neutral axis for the particular case where R=d
For the vector 100i+150j-300k kN determine its magnitude, the direction, angle alpha, beta, and gamma and the unit vector. magnitude = 350 kN angle alpha is suppose to = 59 degrees
Wheeling-Pittsburgh Steel is investigating whether it should it should replace some of the basic oxygen furnace equipment now or wait to do it later. The cost later (i.e. 3 years from now) is estimated to be $1,700,000.
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