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?