10. A fire pump delivers water through a 300 mm main hydrant to which is connected a cotton rubber-lined fire base 100 mm in diameter terminating in a 25 mm diameter nozzle (Cv = 0.98) Assuming friction lost in 300 mm pipe is 3.1 m, 2.5 m from the 100 mm , and 0.8 m from the reservoir to the pump. A) Compute the added energy produce by the pump if it delivers 20 L/s B) If the jet of the nozzle is thrown vertically, what is the maximum height that the water can reach? C) What is the pressure at the pump? EL 70 m 300 mm + EL. 5m 100 mm hydrant EL 20 m 25 mm nozzle) El 22 m

10. A fire pump delivers water through a 300 mm main hydrant to which is connected a cotton rubber-lined fire base 100 mm in diameter terminating in a 25 mm diameter nozzle (Cv = 0.98) Assuming friction lost in 300 mm pipe is 3.1 m, 2.5 m from the 100 mm , and 0.8 m from the reservoir to the pump. A) Compute the added energy produce by the pump if it delivers 20 L/s B) If the jet of the nozzle is thrown vertically, what is the maximum height that the water can reach? C) What is the pressure at the pump? EL 70 m 300 mm + EL. 5m 100 mm hydrant EL 20 m 25 mm nozzle) El 22 m

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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The centrifugal pump has to work with the following specifications: Static suction head: 3 m Static delivery head: 8 m Length of suction pipe: 7m Length of delivery pipe: 10 m Discharge: 850 lpm Working fluid: Water at 30°C A3 The pump is directly connected to an electric motor. Design the pump completely for pumping water.
2. A pump is used to transfer water from tank A to tank C through a pipeline that passes through point B. The AB pipeline experiences a head loss of 10m. Please, determine the power required by the pump and to draw an energy line that represents the state of energy of the water in the pipeline. It is assumed that any minor losses can be ignored, and the pump's efficiency is given as n=0.70. 50m A D₁-300mm L₁=1000m f=0.020 P B D₂=250mm L₂=2000m f 0.020 C 80m
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Water at 50°F is pumped from a lake at 750 gpm through a length of 3-inch schedule 40 commercial steel pipe as shown below. The inlet to the pipe is eight feet below the surface of the lake. A 25-HP gasoline engine drives the pump and the pump has an efficiency of 80% What is the Reynolds number in the pipe? Is the flow laminar or turbulent? What is the head added to the water by the pump? What is the head loss due to pipe friction?
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