water in an open storage tank at 82.2°C is being pumped at the rate of 0.379 m3 /min from the tank. The line from the storage tank to the pump suction is 6.1 m of 2-in. Schedule 40 steel pipe and it contains three elbows. The discharge line after the pump is 61 m of 2-in. pipe and contains two elbows. The water discharges to the atmosphere at a height of 6.1 m above the water level in the storage tank. a. Calculate all frictional losses ΣF. b. Make a mechanical-energy balance and calculate Ws of the pump in J/kg. c. What is the kW power of the pump if its efficiency is 75%?
water in an open storage tank at 82.2°C is being pumped at the rate of 0.379 m3 /min from the tank. The line from the storage tank to the pump suction is 6.1 m of 2-in. Schedule 40 steel pipe and it contains three elbows. The discharge line after the pump is 61 m of 2-in. pipe and contains two elbows. The water discharges to the atmosphere at a height of 6.1 m above the water level in the storage tank. a. Calculate all frictional losses ΣF. b. Make a mechanical-energy balance and calculate Ws of the pump in J/kg. c. What is the kW power of the pump if its efficiency is 75%?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Hot water in an open storage tank at 82.2°C is being pumped at the rate of 0.379 m3 /min from the tank. The line from the storage tank to the pump suction is 6.1 m of 2-in. Schedule 40 steel pipe and it contains three elbows. The discharge line after the pump is 61 m of 2-in. pipe and contains two elbows. The water discharges to the atmosphere at a height of 6.1 m above the water level in the storage tank. a. Calculate all frictional losses ΣF. b. Make a mechanical -energy balance and calculate Ws of the pump in J/kg. c. What is the kW power of the pump if its efficiency is 75%?
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