



Fluid Mechanics Example of HGL and EGL 24 L v2 Ex 7-7) The head loss in...
Fluid Mechanics
QUESTION 4 (a) What are the Energy Grade Line (EGL) and Hydraulic Grade Line (HGL) in a pipe system? (1 mark) A factory draws its water supply from a mountain lake located 75 m above the factory (a) without pump. The factory is at present been supplied via 300 m of 20 cm diameter cast iron pipe. For control purposes, there are five gate valves and one globe valve in the line, as well as three standard 90...
Assume that the head loss in the pipes is given by hL = 0.02(L/D)(V2/2g), where V is the mean velocity in the pipe, D is the pipe diameter, and L is the pipe length. The water surface elevations of the upper and lower reservoirs are 100 m and 60 m, respectively. The respective dimensions for upstream and downstream pipes are Du = 32 cm, Lu = 190 m, Dd = 12 cm, and Ld = 110 m. Determine the discharge...
8-C) As shown below water is pumped and sprayed through a nozzle into the atmosphere at 20 m/s at an elevation 10 m above the reservoir surface. The mass flow rate is 40 kg/s and the volumetric flow rate is 0.040 m3/s. The large diameter inlet pipe total length is 50 m. The pump effidency is 65%. The longer smaller diameter pipe leaving the pump is 200 m in total length. The pipes have different diameters as indicated below. The...
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The 45 degree elbow nozzle discharges water into the atmosphere. The cross-sectional area of the elbow is 25 cm2 150 cm2 at the inlet and 25 cm2 at the exit. Velocity at point 1 and 2 are given as 2 m/s and 12 m/s 450 respectively. The gage pressure at 1 is 73 kPa 150 em2 30 cm The elevation difference between the centers of the exit and the...
Question 1 50 marks Part A (30 marks) In a proposed water supply system, two large reservoirs will be connected with a pipeline 9 km long and with an elevation difference of 72 metres between the full water levels of the reservoirs. The pipe will be required to convey a minimum discharge of 450 L/s. The proposed pipe material is UPVC. Fittings in the pipeline include one 90° short radius elbow and one gate valve fully open. Pipeline entrance and...
Objective To determine the force generated by a jet of water striking on a surface Description of apparatus The supply is led to a vertical pipe terminating in a tapered nozzle. This produces a jet of water which impinges on the vane in the form of a Flat Plate, Hemispherical Cup, Conical Plate or 30° Angled Plate. The nozzle and vane are contained within a transparent cylinder; at the base of the cylinder there is an outlet by which the...
CENTRE INDEX NUMBER SECTION B 30 marks] Calculate the discharge through a pipe of diameter 200 mm when the difference of pressure head between the ends of the pipe 500 m apart is 4 m of water. Take the value off= 0.009 in the formula hl= a) 19.5e/s b)2.0es e)03 m's d) 29.3 e/s 2. A scale 1:50 scale model of ship is towed through sea water at a speed of 1 ms. A force of 2 N is required...
tively. If this area is to be leveled at RL-00 m 40) a (112,3, 78.42,5S.21. 32.81. 18.74) m compute the volume of earthwork 10 2 5.5 Problems L. The following are the balanced latitudes & departures 2+55.21+3281)+18.74)-2319.6 m t,...。s e departures for polygon ABCDEA . Compute the total area by coordinates met nates method, if Side Latitude Departme 156.16 coordinate of point A (100, 100y in meters. . Ifthis polygon drawn on map with scale 5 cm-251-BC m. Compute the...
A small coastal town in Queensland is subject to an increasing permanent population and also a transient influx of tourists during the summer period. Council already receives frequent complaints of restricted water supply. The water supply system comprises a rising trunk main from the treatment plant A to the service reservoir B, the service reservoir, and service mains to the consumption areas. Two consumption areas C and D at different elevations are gravity supplied from the service reservoir. The service...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...