An orifice meter is to be calibrated for the measurement of the flow rate of a stream of liquid acetone. The differential manometer fluid has a specific gravity of 1.10. The calibration is accomplished by connecting the orifice meter in series with a rotameter that has previously been calibrated for acetone, adjusting a valve to set the flow rate, and recording the flow rate (determined from the rotameter reading and the rotameter calibration curve) and the differential manometer reading, h. The procedure is repeated for several valve settings to generate an orifice meter calibration curve of flow rate versus h. The following data are taken. VALVEX Flow Rate V (ml./s) Manometer Reading h(mm) 62 87 10 15 107 20 123 25 138 30 151 1- For each of the given readings, calculate the pressure drop across the orifice, AP (mm Hg). 2- The flowrate through an orifice should be related to the pressure drop across the orifice by the formula. D = KP" Verify graphically that the given orifice calibration data are correlated by this relationship, and determine the values of Kand n that best fit the data. 3- Suppose the orifice meter is mounted in a process line containing acetone and a reading h = 23 mm is obtained. Determine the volumetric, mass, and molar flow rates of acetone in the line.

Sheet 1 Page 1 of 2 Q1/ An orifice meter is to be calibrated for the measurement of the flow rate of a stream of liquid acetone. The differential manometer fluid has a specific gravity of 1.10. The calibration is accomplished by connecting the orifice meter in series with a rotameter that has previously been calibrated for acetone, adjusting a valve to set the flow rate, and recording the flow rate (determined from the rotameter reading and the rotameter calibration curve) and the differential manometer reading, h. The procedure is repeated for several valve settings to generate an orifice meter calibration curve of flow rate versus h. The following data are taken. VALVEX Flow Rate V (mL/s) Manometer Reading h(mm) 62 10 87 15 107 20 123 138 25 30 151 1- For each of the given readings, calculate the pressure drop across the orifice, AP (mm Hg). 2- The flowrate through an orifice should be related to the pressure drop across the orifice by the formula. D = KPn Verify graphically that the…

A fan is used to blow air (density=1.15 kg/m3) in a duct. A pitot tube is placed in the duct as shown. The static pressure in the duct is measured with a wall tap and pressure gage. Use the gage readings to determine the velocity of the air. note: Pitot tube is used to measure the air total pressure. Mind on the head to be calculated if it is already in air. x 103 Pa Ptot tabe 12 x 103 Pa

1. A pressure gauge attached to a pipe is reading 1.34 m of Hg at a place where the atmospheric pressure is 10.33 m of water. The approximate absolute pressure at the mountain isa. 930 kPab. 181 kPac. 280 kPad. 100 kPa   2. The flow is said to be unsteady and non-uniform when,a. The flow velocity is not changing with time but changing with spaceb. The flow velocity is changing with both time and spacec. The flow velocity is changing with time but not changing with spaced. The flow velocity is not changing with both time and space   3. The below figure shows a pipe with a circular cross section of diameter D mm on the left end and a square cross section with side D mm on the right end. Mercury enters the left end with a velocity 1 cm/s and leaves the right end with a velocity V2. Find V2 (neglect losses in the pipe).a. Cannot be find since length is not givenb. Cannot be find since diameter is not givenc. 7.85 mm/sd. 12.73 mm/s   4. 1 kg water is flowing through an inclined pipe at…