A pump delivers water through a smooth pipe 150mm in diameter and 250m long to a hydrant to which is connected to a fire hose 60mm in diameter. The hose is 90m long and terminates in a nozzle with a tip diameter of 25mm and C = C, = 0.97. The nozzle is at elevation 9m while the pump and the hydrant are in elevation 1.5m. Assume a pressure loss in the hydrant of 14 kPa when the flow is 16 liters/second, what pressure in kPa must be maintained on the discharge side of the pump if the pressure on the suction side of the pump is 56 kPa? Also, what is the horsepower output of the pump? Use f = 0.025 for smooth pipe and f = 0.020 for the fire hose.

A pump delivers water through a smooth pipe 150mm in diameter and 250m long to a hydrant to which is connected to a fire hose 60mm in diameter. The hose is 90m long and terminates in a nozzle with a tip diameter of 25mm and C = C, = 0.97. The nozzle is at elevation 9m while the pump and the hydrant are in elevation 1.5m. Assume a pressure loss in the hydrant of 14 kPa when the flow is 16 liters/second, what pressure in kPa must be maintained on the discharge side of the pump if the pressure on the suction side of the pump is 56 kPa? Also, what is the horsepower output of the pump? Use f = 0.025 for smooth pipe and f = 0.020 for the fire hose.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?

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A pump delivers water through a smooth pipe 150mm in diameter and 250m long
to a hydrant to which is connected to a fire hose 60mm in diameter. The hose is 90m
long and terminates in a nozzle with a tip diameter of 25mm and C = C₁ = 0.97. The
nozzle is at elevation 9m while the pump and the hydrant are in elevation 1.5m. Assume
a pressure loss in the hydrant of 14 kPa when the flow is 16 liters/second, what pressure
in kPa must be maintained on the discharge side of the pump if the pressure on the
suction side of the pump is 56 kPa? Also, what is the horsepower output of the pump?
Use f = 0.025 for smooth pipe and f = 0.020 for the fire hose.

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