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Observations (* take readings for maximum flow rate only) Test No. Tube Flow rate (1/3) (mm) 1 Venturimeter Enlargement * Orifice Elbow Rotameter Tube Tube Tube Tube Tube Tube Tube 1 Height 2 3 4 5 6 7 8 (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) 365+3 55+2 31713330:5 34213 0:5 55+5 7113 200 305.5 15713 2925 13515 161+2 1575 140 275+5 2200 3 26813 21212 22213 22213 80 265+5 26012 265+3 255+5 260+2 26002 20 2 3 0.5271.005 0.3501.005 0.2121.005 0.0821.00 4

a. Calculation of the Flow Rate test number /1000 m 2 (19) = Il b. Calculation of Cd for the Venturimeter i h xi Yi 3 Vh (m) m (m) r) Q S 1 2 آیما 3 4 From a spreadsheet program or calculator: slope intercept correlation coefficient Substitute the values of slope and intercept in the equation, Q (slope) Vh + intercept to give the equation of the line. Q = vh+

Values of the three points to draw the line (calculate Q from the equation): Vh (m) 0 0.2 0.4 Calculation of Cd, CdAo 2g II slope Cd slope Ao/2g =