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Experiment #3 - Venturi Meter

# Experiment #3 - Venturi Meter - ME 323 Lab Report...

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ME – 323 – Lab Report Experiment #3 Venturi Meter September 28, 2007 Submitted by: John Luff Submitted to: Dr. Perwez Kalim Division of Engineering and Physics Wilkes University, Wilkes-Barre, Pa.

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Abstract In this experiment a team of five students used the combination of a venturi meter and manometer in order to measure the flow rate or discharge of a pipe. Through the course of the experiment both actual and theoretical discharge were calculated using the obtained time and manometer readings. Though the beginning of the in-lab experiment got off to a rough start, for the most the lab went smoothly, and although our C values seem to be a little off, we produced very good graphical Log α and β values. 2
Experimental Data & Procedure Table 1 No . Manometer Readings Q theo = k * ∆h m 3 /s Actual Discharge C = Q act / Q theo log 10 Q a log 10 h % Error In Q h l mm h t mm ∆h m Time sec Mass Kg Q act m 3 /s 1 175 20 0.155 0.3787 t 1 = 41.36 18kg 0.4094 0.9249 -0.3878 -0.8097 8.1173 t 2 = 42.49 t 3 = 42.61 t 4 = 43.48 t 5 = 43.05 t avg. = 42.2 2 238 28 0.210 0.4408 t 1 = 35.75 18kg 0.4766 0.9249 -0.3219 -0.6778 8.1173 t 2 = 35.59 t 3 = 35.32 t 4 = 36.20 t 5 = 36.30 t avg. = 35.85 3 205 10 0.195 0.4248 t 1 = 37.16 18kg 0.4592 0.9249 -0.3380 -0.7100 8.1173 t 2 = 37.81 t 3 = 37.55 t 4 = 38.22 t 5 = 38.6 t avg. = 37.86 4 270 60 0.210 0.4408 t 1 = 35.73 18kg 0.4766 0.9249 -0.3219 -0.6778 8.1173 t 2 = 35.19 t 3 = 35.08 t 4 = 36.30 t 5 = 36.20 t avg.

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