Problem 2The figure below shows a new cast-iron pipeline that connects two reservoirs. The upstream reservoir is at anelevation of 1000 ft (assume this is 1000.00 ft). The flowrate in the system from the upstream reservoir to thedownstream reservoir is 5 cfs. Assume the water temperature is 50 °F. The pipe length from the first reservoir tothe globe valve is 300 ft, the pipe length from the globe valve to the enlargement is 700 ft.(a) Using the Darcy Weisbach equation for pipe friction head loss, find the elevation of the downstreamreservoir. Account for minor losses. Also tabulate the total head at each of the following locations along thepipeline: A just after the sharp-edged pipe entrance, B before the globe valve, C after the globe valve, D beforethe enlargement, E after the enlargement, F before the pipe exit. Calculate all values with a lot of precisionbecause cumulative round-off errors can add up, but report all head values to the nearest 0.01 ft. Submit aclearly annotated Moody diagram.(b) Repeat part (a) but use the Hazen Williams equation to calculate pipe friction head loss instead. Report thehead values at points A through F in another column of the table you made for part (a).(c) Using your calculations from part (b) (and any other necessary calculations), draw the energy grade line(EGL) and hydraulic grade line (HGL) to scale. Use an entire sheet of GRAPH PAPER for this graph so youcan draw it large enough. The horizontal scale should be different from the vertical scale.Elevation 1000 ftGlobevalve12-in. dia,1000 ft18-in. dia, 4500 ftCast-iron pipeElevation ?

Solution- (a) Hazen williams equation: hf =4.73lQC1.852-1d4.87 here , For first 1000 ft…

0 ft (assume this is 1000.00 ft). The flowrate in the system from ervoir is 5 cfs. Assume the water temperature is 50 °F. The pipe s 300 ft, the pipe length from the globe valve to the enlargemen rcy Weisbach equation for pipe friction head loss, find the elev nt for minor losses. Also tabulate the total head at each of the f after the sharp-edged pipe entrance, B before the globe valve, C

0 ft (assume this is 1000.00 ft). The flowrate in the system from ervoir is 5 cfs. Assume the water temperature is 50 °F. The pipe s 300 ft, the pipe length from the globe valve to the enlargemen rcy Weisbach equation for pipe friction head loss, find the elev nt for minor losses. Also tabulate the total head at each of the f after the sharp-edged pipe entrance, B before the globe valve, C

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 14P

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