s required to deliver discharge Q = 0.04 m'/s against a total head H, =VEN m using a eller inner to outer diameter ratio of 0.5, speed of N=20EN rpm and hydraulic efficien flow at the entrance is radial such that Vn = V2, use the o and y equations to find the im flow velocities V2, exit width B2, and blades inlet B1 and outlet angles B2. %3D Ø = e"Nsu +0.88 and y = eN +0.055 V½ = /2gH, = RD,N/ 60 SM SM %3D TD N/60

s required to deliver discharge Q = 0.04 m'/s against a total head H, =VEN m using a eller inner to outer diameter ratio of 0.5, speed of N=20EN rpm and hydraulic efficien flow at the entrance is radial such that Vn = V2, use the o and y equations to find the im flow velocities V2, exit width B2, and blades inlet B1 and outlet angles B2. %3D Ø = e"Nsu +0.88 and y = eN +0.055 V½ = /2gH, = RD,N/ 60 SM SM %3D TD N/60

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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Water is pumped from a supply reservoir to a ductile iron water transmission line. The high point of the transmission line is at point A 1 km downstream of the supply reservoir and the low point of the transmission is at point B 1 km downstream of point A. If the flow rate through the pipeline is 1m³/s the diameter of the pipe is 750mm and the pressure at A is to be 350 kPa. A) estimate the head that must be added by the pump. B) estimate the power supplied by the pump. C) calculate the water pressure at B.
Problem-3: A centrifugal pump lifts water against a static head Az = VEN m. The pipe setup has a constant diameter of 0.08 m, major losses in the suction side h,, = EN m and in the discharge side hip is 3 m. The pump impeller has a diameter of 0.15 m, exit width of0.015 m, exit blade angle of 22° and speed ofN=20EN rpm The hydraulic efficiency is 0.85. If the flow at the entrance is radial, find the discharge, pump head, atmospheric pressure Pa. vapor pressure P, and maximum allowable height of the pump from the feeding tank water surface elevation if the pump is operating under T= 25 °C at altitude H= 20EN m. %3! o, = NPSH, IH, =1.21x10 N - P,)/y-hST-H, !3! !! SM (P al-abs $256 Par ly =10.33(1–2.256x10-H (14 29-3985:(T+2334) !!
1.
For the series/parallel pipe system shown, determine the total head loss in the system if the discharge in line 2 is 150 L/s. If the pressure at A is 400 KPa, what is the pressure at C? Diameters are in mm and pipe lengths in m. Problem 3 f=0.018 D,=350 L=2500 B f-0.023 D3=300 L=1200 f=0.02 C f-0.021 D f=0.022 E D,=500 L=1000 D3=300 L5=800 D-600 L,=1200 f-0.022 D=350 L4=1500
El. 200 m A Res. H-W L Pipe B pipec →Negleet minor losses → Pipes B, C, and E are all have: Pipe E = 600 m long d = 500 mm f = 0.03 → When the Pump develops 15m of head, the Velocity in pipe C is 5 m/s. Find : a) the flowrate in all pipes. b) the elevation of the discharg end of Pipe E.
6. ANSWER ASAP. WILL UPVOTE
These MCQ too in fluid mechanic by streeter
Determine the available NPSH for the system shown in Fig. 13.38 (b). The fluid is water at 80°C and the atmospheric pressure is 101.8 kPa. The water level in the tank is 2.0 m below the pump inlet. The vertical leg of the suction line is a DN 80 Schedule 40 steel pipe, whereas the horizontal leg is a DN 50 Schedule 40 pipe, 1.5 m long. The elbow is of the long-radius type. Neglect the loss in the reducer. The foot valve and strainer are of the hingeddisk type. The flow rate is 300 L/min.
Given the properties and elevations of the three reservoirs, if friction factor f, is 0.01 for all pipes,determine the followinga. Energy head at junctionb. Head loss of pipe-1c. Discharge of pipe-3
5.61 If viscosity is neglected, typical pump-flow results are shown in Fig. P5.61 for a model pump tested in water. The pressure rise decreases and the power required increases with the dimensionless flow coef-ficient. Curve-fit expressions are given for the data. Suppose a similar pump of 12-cm diameter is built to move gasoline at 20°C and a flow rate of 25 m³/h. If the pump rotation speed is 30 1/s, find (a) the pressure rise and (b) the power required.
A pump is used to draw water from an open reservoir to an open tank on thetop of a building. The discharge flow rate is 50 lps. The static suction head of the pump is6 m and the static discharge head is 20 m. The cast iron, schedule 40, pipe in the suctionline is 4 inches nominal diameter and 20 m long. The cast iron, schedule 40, pipe in thedischarge line is 6 inches nominal diameter and 65 m long. The fittings and valvesinstalled in the suction line are the following: two 90o standard elbow and one gate valve.For the discharge line, are the following: one check valve, one gate valve, and three 90ostandard elbows. Assuming a water viscosity of 0.001002 Pa-s, and a pump efficiency of82 %. Determine: a) the total dynamic head b) the pump brake power. Show the neat schematic diagram of pumping system. Note: Use Moody’s equation for the value of friction factor; and table for determining the equivalent length of the components.
Ex: The pipe has a diameter of (1.2m) at A, (1.5m) at B and (0.8m) at C. The discharge at C is (O./3) and the velocities at A & D are (3.5 m/s) and (2.5 m/s) respectively. If the flow is steady incompressible, Determine the C 1. Discharge at A. A 2. The velocity at B&C. 3. The diameter at D