Water is pumped from a reservoir to a tank with a lift of 20.0 ft. The suction pipe, which connects the reservoir to the pump, is 12 in. in diameter and 25 ft. long. The discharge pipe, which connects the pump to the tank, is 10 in. in diameter and 450 ft. long. Both pipes may be classified as clean, smooth, cast iron pipes. The suction pipe projects into the reservoir and the discharge pipe projects into the tank. The efficiency of the pump is 60 per cent. Considering all losses,
1. Water is pumped from a reservoir to a tank with a lift of 20.0 ft. The suction pipe, which connects the reservoir to the pump, is 12 in. in diameter and 25 ft. long. The discharge pipe, which connects the pump to the tank, is 10 in. in diameter and 450 ft. long. Both pipes may be classified as clean, smooth, cast iron pipes. The suction pipe projects into the reservoir and the discharge pipe projects into the tank. The efficiency of the pump is 60 per cent. Considering all losses, calculate the horsepower required to operate the pump to discharge 3 c.f.s. into the tank.
2.t is required to pump 500,000 gallons per day (continuous operation) of an oil having a specific gravity of 0.92 and viscosity of 250 Saybolt Universal seconds through a 6-in.-diameter wrought iron pipe. What pump pressure (in pounds per square inch) must be provided per 1000 ft. of pipe?
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