Discuss the factors influencing the economic feasibility of pressurized flow projects?
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Discuss the factors influencing the economic feasibility of pressurized flow projects?
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- Discuss the factors influencing the optimal pipe diameter selection in pressurized flow design?A rectangular channel, 20ft wide, carries 400 cfs and discharges onto a 20 ft wide apron with no slope with a mean velocity of 20 fps. What is the height of the hydraulic jump? What energy is lost in the jump? 2. At a certain section of a rectangular channel 10 ft wide, the depth of flow is 2 ft and the flow rate is 400 ft3/s. If a hydraulic jump occurs, will it be upstream or downstream of this section? Prove answer using calculation. 3. Water flows over a spillway into a sluice 10 m wide. Before the jump the water has a depth of 1 m and a velocity of 18 m/s. Determine the Froude number before the jump and the depth of flow after the jumpDiscuss the types of structures used to control surface and subsurface storm run-off
- A hydraulic network was initially designed and constructed to deliver water supply services to community A, B, and C The design guidelines were: maximum headloss gradient is 2m per kilometer, mean speed is between 0.6 to 2.5 m/s, and minimum pressure head is 5m. Using the design size of pipe A-B, after 30 years, the roughness coefficient of all constructed pipelines decreased by 25 grades, reduction in diameter of all pipes by 300mm, and a new community (Community D) is connected to Community C using the original pipeline form S. Determine the size of additional parallel pipeline (along with A-B) in mm to accommodate additional water load and original design pressure head at B is maintained.You are appointed as a Site Engineer in a construction company working in the field of water systems and pump stations. During your work, you faced several engineering problems and you need to suggest a solution for each problem as follow: A water hammer has been occurred in a pipeline. In the initial investigation, it was found that the speed of the pressure wave is high. What is the reason and how you can solve it? You need to design a trapezoidal open channel without high cost. What you will do? You need to supply drinking water to a city located in area where part of it has mountains. You have two methods to supply the water, gravity supply and pumped supply. What is the best method? Your manager asked you to set a design for a small compound contains 550 persons. The design should be for 30 years. What are the main points you will take it into your account?Describe about the Hydraulic transportation method.
- A rectangular channel carrying 30 cfs has a bottom width of 4 ft. Manning roughness coefficient is 0.0a, where a = last digit of your registration number. Assume ten different depths of the flow and DEVELOP a specific energy diagram, using Excel sheet, for the given flow in this channel. Show 1) All the alternate depths and the corresponding energies. 2) The critical flow parameters. 3) Relationship between specific energy and the depth of flow for no velocity in a given channel. Registration number = 5395 , a = 1 Subject = Hydraulics (Open Channel flow) Book = Fuid Mechanics With Engineering Applications by Robert L. Daugherty, Joseph B. Franzini, E. John Finnemore (S.I Metric Edition) Manning's Cocfficicnt = 0.05Q1: (a) Define and explain uniform flow. How is open channel flow different from pipe flow? (b) Under what conditions the bed slope, water surface slope and the energy line slope are equal?Why subcritical flow is desirable ?
- Water flow in a 10 feet wide rectangular channel at the rate of 64 cubic feet per second. What is the critical depth for this condition?A spillway model is to be built to a geometrically similar scale of 1:25 across a flume of 1200 mm width. The prototype is 15 m high and the maximum head on it is expected to be 1.5 m. What height of model and what head on model should be used? If the negative pressure in the model is 200 mm, what is the negative pressure of the prototype? Is it practicable?Problem 2 Part a) For transient, unsaturated flow problems, list four pieces of information we need in addition to the information necessary for steady-state saturated flow problems. AND, provide more explanation for two of them. Part b) List five situations in which numerical analyses of seepage would be especially useful.