Question 7A well is pumped from a confined aquifer at a constant rate of 1000 gallons per minute (gpm). The following data were collected during the pumpingtest:.Distance from the well to the observation well (r) = 150 feetDifferential drawdown (Ah) in the observation well at this distance = 2.5 feetAquifer properties:Transmissivity (T) = 25,000 gpd/ft• Storativity (S)- 0.0005 (dimensionless)Pumping time (t) = 5 hoursWatch your units !!Using the above information, calculate the drawdown (h) in feet in the observation well at a distance of 150 feet after 5 hours of pumping. (Use thepowerpoint slides for approximations for the well function W(u).

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Answered: Question 7 A well is pumped from a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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1) Pitot tube can be used to measure the flow velocity. The equation can be derived from Bernoulli Equation. True or False 2) Which of the following statement is NOT correct about piping network? a) In parallel pipes, the flow rate is proportional to its diameter and inversely proportional to its length and friction factor. b) When analyzing the piping network, conservation of mass throughout the system must be satisfied. c) In piping systems with pumps, the Bernoulli equation should be corrected by introducing a kinetic energy correction factor. d) The algebraic sum of head losses for all loops equal to zero. 3) The EGL is always a distance V2/2g above the HGL. True or False
B1) Water is pumped between two reservoirs, from point 1 (2, = 2 m) to point 2 (z, = 12 m), through a long pipe. Screwed Sharp regular 90 elbow esit Sharp Half-open gate valve entrance bend ripe Pump Open gkbe alve Figure 4: Water pump piping system Given, The density of water, p = 1000 kg/m The dynamic viscosity of water, u = 1.485 x 10-3 kg/m.s The flowrate of water, Q = 0.006 m²/s The pipe roughness ratio, e/d = 0.001 The pipe diameter, d = 4 cm The pipe length, L = 100 m Va ci dater, in Vo of 009 HLamin- eeetfTransition- Conplete atlece, gh pipes Hool Ho00 0.00 :0,008 H0.006 0,000 0.001 0.0006 C0,0006 0.0004 0.0001 0.000a5 Reyldh aher Re -0.000 Figure 5: Moody chart
A 140 m long pipeline runs between two reservoirs, both ends being under water, and the intake end is square-edged and non-projecting. The difference between the water levels in the two reservoirs is 40m. a) What is the discharge if the pipe diameter is 20 cm and f = 0.007? The density of water may be taken as 1000 kg/m³. b) When this same pipe is old, assume that corrosion reduces the diameter to 18 cm and that f becomes 0.012. What will the rate of discharge be then?
b) A 3 cm orifice plate is placed within a 4 cm pipe in which methanol at 20 °C (SG = 0.7884 and dynamic viscosity (µ) = 0.5857 cP) is flowing through. If the flow rate passing through the pipe is 3.1 litres per seconds, determine the pressure difference that must be measured around the orifice plate. The discharge coefficient of the orifice can be calculated by: 91.71B2.5 Ca = 0.5959 + 0.0312B2.1 – 0.184ß® + Re0.75 Where, B is the ratio of orifice diameter to pipe diameter and Re is the Reynolds number.
Problem 5: Pipe Flow A 10,000 ft P BC 20,000 ft D This semester we worked through several versions of the pipe flow problem sketched above, in which a 3.0 ft diameter pipe is used to convey water from reservoir A (surface elevation 80 ft) to reservoir D (surface elevation 90 ft). In week 14, we considered a specific example with a cast iron pipe (A = 0.00085 ft), flow rate of Q=40 ft³/s, and average velocity of V = 5.66 ft/s. For these conditions, the friction factor was λ = 0.015 and the pump added 86 ft of head. Assume the water temperature is always 60°F. Part A Assuming the pump is 75% efficient and electricity costs 10e/kW.hr, how much will it cost to run this pump for a year? Hint, 1 kW hr = (1000 watts) (1 hr) = (1000 J/s)(3600 s) = 3.6x106 J. Part B Now let us assume we need to double the discharge to Q = 80 ft³/s, but unlike the example in week 13, we are not going to make the false assumption that the friction factor λ is constant. You may, however, assume that the roughness…
Learning Portal Academic Departments ETC - CIMS - Courses - Reports - e-Services - Moham Select one: O True O False The energy loss due to the change of flowrate of a fluid flow in direction is known as minor loss. Select one: O True O False Determine the time taken by the oil to get collected in a measuring jar of 26 x 10-3 m³. The oil has the specific that has a mean velocity of 9 m/s in a pipe of cross-sectional area 11 x 10-5 m2. Time taken (in s) arch EUROSTARD
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Determine the resistance in each scenario presented. Explain whether the resistance is linear or not, and if not describe the relation, finally, explain how it can be linearized about a specific condition. Be sure to state the units and demonstrate that they are correct using the appropriate pressure/flow relation. a) Laminar flow An aqueous solution of 50% glycerol / 50% water is flowing through a pipe with the following system parameters: System_Parameters = (L = 100.0 D= 0.2 u= 0.022 p= 1150.0 9m=7.0 g = 9.81) units : L ~ m; D~ m; µ ~ Pa · s; p~ kg: 4. ~ 8: Confirm that this is laminar flow and then calculate the resistance. b) Pump Resistance from Pump Curve Consider the following pump curve: [Feet) (Meters] 30어 Find the pump resistance if the pump is supporting 15 meters of discharge head pressure, at a flow rate of 300 L/minute. 80- 250 7어 100 PSI L/min Determine the pump resistance in Pa 20어 6어85 PST 50 SCFM 5어 75 PST Note that standard pump curves are oriented opposite to the…
CS) Flow through a heat exchanger tube is to be studied by means of a 1/10 scale model. If the tmateaangeraarmall, carries widecreme de ratio of pressure losses between the model and the prototype if water is used in the model.

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