Problem1:A new coagulation water treatment plant is proposed to treat 0.1145 m³/s at an averagetemperature of 19 °C. The tank is circular, and the required water depth is twice the diameter.Using the following design assumptions: detention time=10s; velocity gradient = 800 s¹; impellertype: radial flow turbine with 6 flat blades and assume B-H/3. Determinea) The tank dimensionsb) The impeller diameter knowing that the available diameters are 0.45 and 0.6 mc) The required input power

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Answered: Problem1: A new coagulation water…

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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A municipality wants to determine the flow rate into the plant based on pipe size, elevation difference, and assumed roughness, for the water supply reservoir is shown in the figure below. The pipe is an old 4-inch diameter Cast Iron with a Hazen Roughness coefficient of 100 & 223 feet long. The difference in elevation is 62 feet. The pipe has a strainer at the entrance (k-1.9), a valve (k=8.6), a check valve (k = 2:7) and 3- 90° bends (k-0.83). The flow exits into a receiving pond at the WTP. Provide the flow rate in Gallons Minute. per WTP Az
(a) Water at temperature of 20 °C is pumped from a reservoir to a large open surface storage tank through a piping system with diameter of 10 cm as shown in Figure Q1. A pump with pump head rise ha = 32 – 1 × 10°Q²,Q = is m? installed in this system. Besides, the pipe's fitting components installed in this piping system such as tee and long radius 90° elbows are flanged type. The total pipe length for the entire piping system from reservoir to storage tank is 48 m while the pipe length from reservoir to pump suction side is 8 m. The friction factor of the pipe in this system is estimated to be 0.02. The elevation difference between the reservoir and storage tank are estimated to be 18 m. Water at 20°C D= 10 cm 18 m pump Reservoir Figure Q1
A Kaplan turbine delivering 40 MW works under a head of 35 m and runs at 167 rpm.The hub diameter is 2.5 m and runner tip diameter is 5 m. The overall efficiency is 87%.Determine the blade angles at the hub and tip and also at a diameter of 3.75 m. Also find the speed ratio and flow ratio based on tip velocity. Assume nH = 90%. Outlet blade angle at the hub * 22.6 O 42.3 13.7 12.5
The allowable Net Positive Sustion Head (NPSH) for a pump provided by the manufacturer for a flow of 0.05 m³/s is 3.3 m. The temperature of water is 30° C (vapour pressure head absolute = 0.44 m), atmosphere pressure is 100 kPa absolute and the head loss from the reservoir to pump is 0.3 N-m/N. Find the maximum height of the pump above the sustion reservoir.
Tank A has an elevation of 100 m and Tank B has an elevation of 160 m. Since Tank A is lower than B, engineers have installed a pump near A to transfer fluid to B. The discharge in the pipe is at 0.65 cubic meters per second and pipe has a length of 1 km. with a diameter of 0.6 meters. If Hazen williams coefficient is equal to 120, compute the head loss in the pipe.
The pump whose characteristic curves are shown in Figure 11.5.136 is used to pump water from resenve: to reservoir B through 1000 ft of 8.00-in diameter pipe whose friction factor is 0.017 (as shor A Figure 11.5.14). Use the entrance loss coefficient of Ke= 0.5 and gate valve loss of KGv=0.2. (a) Wh flow rate does it pump? (b) What input power is required to drive the pump? EXAMPLE 11.5.2 Elev. 50.0' Gate valve оpen Elev. 30.0' Elev. 20.0' Pump Gate valve оpen Elev. 0.0' 1000 ft A Figure 11.5.14 Example 11.5.2 pipe system.
Benzene at 37.8 °C is pumped through the system of Figure at the rate of 0.1515 m3/min. The reservoir is at atmospheric pressure. The gauge pressure at the end of the discharge line is 345 kN/m². The discharge line is 1.828 m above the pump, while the pump suction is 0.821 m below the level in the reservoir. The discharge line is 1.5-in. Schedule 40 steel pipe. The head friction in the suction line is 0.4066 m and in the discharge line is 4.4664 m. The mechanical efficiency of the pump is 60%. The density of benzene is 865 kg/m³ and its vapor pressure at 37.8 °C is 26.2 kN/m². a) Calculate the total power input. b) Evaluate whether the pump is suitable for this system when the pump manufacturer specifies a Net Positive Suction Head Required (NPSHR) of 3.05 m.
Question 1: For the setup shown in the figure: H = 20 m f = 0.0012 f = 0.0012 D = 250 mm D = 80 mm L = 50 m L = 50 m f = 0.001 D₁ = 150 mm L = 100 m A. Calculate Q in the 150 mm-diameter pipe B. If the NPSHR of the pump is 3 m. Is it feasible to use the pump? You can use: Patm-101 kN/m², and Pvapor = 3.17 kN/m² H₂ = 10 m Pump Q f = 0.0012 D=80 mm L = 50 m Q₁ = 0.2
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.
For a Kaplan turbine with runner diameter 4 m, the discharge is 60 m/s and the hydraulic and mechanical efficiencies are stated to be 90 percent and 94 percent respectively. The diameter of boss is 0.3 times the runner diameter and the speed ratio is 2.0. Assuming that discharge is free and there is no swirl at outlet, calculate the net available head on the turbine, the power developed and specific speed.
hardy cross method please For the piping system shown below, determine the flow distribution and the piezometric heads at the junction (j) using the Hardy-Cross Method of solution. Power 20 Kw D= 0.2 m, D=0.15 m, D= 0.15 m f- 0.021, f,=0.018, f,=0.023 30 m 2 15 m 10 m A 3. Pump 1 L1=185m L2=230m L3=435m
Water treatment plant of flow 12000 m³/day, GT=48000, GT-30000, t-60 sec, t= 20 min, CD=1.9. Use two tanks at least for each unit: a) Design circular base coagulation tanks of depth = Diameter, find: (dimension and power required for mixing tank). b) Design flocculation tanks of four paddles of 15 cm width and 90% of tanks length (dimensions of tank and mixing velocity) (assume depth =3 m, length = 3width).

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