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Li-Chuan Chen, Marian Muste, and Larry Weber

53:071 Principles of Hydraulics Laboratory Experiment #1 Energy and Hydraulic Grade Lines in Water Pipe Systems. Li-Chuan Chen, Marian Muste, and Larry Weber. Objective.

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Li-Chuan Chen, Marian Muste, and Larry Weber

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  1. 53:071 Principles of HydraulicsLaboratory Experiment #1Energy and Hydraulic Grade Lines in Water Pipe Systems Li-Chuan Chen, Marian Muste, and Larry Weber

  2. Objective • To determine the energy and hydraulic grade lines in a pipeline assembly comprising losses due to friction in conduit as well as head losses due to transitions and fittings.

  3. Principle • Bernoulli’s equation

  4. Apparatus — Standard Pipe • Geometrical characteristics for the pipeline system can be found in the appendices in the handout.

  5. Apparatus — Streamlined Pipe • Geometrical characteristics for the pipeline system can be found in the appendices in the handout.

  6. What are we going to do? • We are going to measure the piezometric heads along a pipeline system.

  7. Procedures • Bleed the pipe system and tubings. • Establish stabilized maximum discharge in the system. • Measure the datum. • Measure and record the pressure head. • Measure the head on weir. • Measure the water temperature.

  8. Data Sheet

  9. Analysis • Compute velocity, piezometric, and energy heads at each pressure tap. • Plot the energy and hydraulic grade lines. • Discuss the energy budget. • Discuss sources of experimental errors. • Calculate the horsepower consumed by the system.

  10. Result — Standard Pipe

  11. Further Consideration • Compare the measured values between the pressure taps with computed ones using empirical values found in your hydraulics or fluids textbooks. Explain the discrepancies. Note — Losses between Tap 5 and 6 through the curved pipe segment should be treated as a lump local loss located at Tap 5.

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