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CE135 Lab1, Flow Measure in Pipes_KhanVu

CE135 Lab1, Flow Measure in Pipes_KhanVu - Trial Q(cfs Δh...

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FLOW MEASUREMENT IN PIPES USING CONSTRICTION DEVICES California State University, Sacramento Date: 2/2/2005 Lab Team: Bubblicious Department of Civil Engireering EXPERIMENT: Calibration of the Orifice in a Pipe EQUIPMENT LIST: SCALE (ID Howe Scale) STOP WATCH (ID CH231 Fossil Watch) MANOMETER (ID 20AA25T) SKETCH OF EXPERIMENTAL SET-UP: CONSTANT DATA: PIPE DIAMETER, D1= 2" ORIFICE DIAMETER, D0 = 0.993" WATER TEMPERATURE VARIABLE DATA: Run No. Manometer Readings (inches) Weight (lb) Δh Start End ΔW 1 3.3 4.5 7.8 670 1065 395 180 2 8.4 10.2 18.6 750 1370 620 180 3 12.2 14.3 26.5 300 1030 730 180 4 18.3 21.1 39.4 480 1380 900 180 5 22 25.2 47.2 400 1390 990 180 6 26 29.7 55.7 440 1525 1085 180 NOTES ON EXPERIMENT: Graphical Data: 61.1 ° F Kinematic Viscosity of Water @ 61.1 ° F, ν= 1.21 x 10 -5 ft 2 /sec Elapsed Time (sec.) h 1 h 2 0.016 ft 3 /lb
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Constrained Case: Trial 1 0.04 22.41 0.79 502.32 0.00123 2 0.06 34.61 1.91 1197.84 0.00304 3 0.06 41.31 2.68 1706.60 0.00421 4 0.08 50.37 4.03 2537.36 0.00640 5 0.09 55.13 4.85 3039.68 0.00774 6 0.10 59.89 5.78 3587.08 0.00930 Total = 0.42 263.73 20.03 12570.88 0.03 978.5328 0.0026 1.5911 0.9995 Unconstrained Case:
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Unformatted text preview: Trial Q (cfs) Δh Y i , Q (cfs) X i (2gΔh) 1/2 X i Y i X i 2 Y i 2 S xx S yy S xy r 2 = X i (log Δh) Y i (log Q) X i Y i X i 2 Y i 2 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 60.00 65.00 70.00 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 f(x) = 0x - 0 R² = 1 Constrained Case: Flow vs. Head Lost (2gΔh)0.5 (inches) Flow (cfs) 1 0.04 7.8 0.89-1.45-1.30 0.80 2.12 2 0.06 18.6 1.27-1.26-1.60 1.61 1.58 3 0.06 26.5 1.42-1.19-1.69 2.03 1.41 4 0.08 39.4 1.60-1.10-1.75 2.55 1.20 5 0.09 47.2 1.67-1.06-1.77 2.80 1.11 6 0.10 55.7 1.75-1.02-1.77 3.05 1.03 Total = 8.60-7.07-9.88 12.83 8.46 0.5017 0.1310 0.2563 0.9997 Reynold's Number: S xx S yy S xy r 2 = 1 10 100 0.01 0.10 Unconstrained Case: Flow vs. Head Lost Head Lost (log scale) Flow (log scale) Trial 1 4.46E+04 1.01 2 7.01E+04 1.03 3 8.25E+04 1.01 4 1.02E+05 1.02 5 1.12E+05 1.03 6 1.23E+05 1.04 Re d = 4Q / π d ν Discharge Coefficient , K...
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CE135 Lab1, Flow Measure in Pipes_KhanVu - Trial Q(cfs Δh...

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