Theory and Design for Mechanical Measurements
Theory and Design for Mechanical Measurements
6th Edition
ISBN: 9781118881279
Author: Richard S. Figliola, Donald E. Beasley
Publisher: WILEY
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Chapter 10, Problem 10.7P

The Reynolds number of a fluid flowing through a 5-cm-diameter, square-edged orifice plate meter within a 15-cm pipe is 250,000. Find the discharge coefficient for flange taps.

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A venturi meter is used to measure liquid flow rate of 450 m3 /h. The difference in pressure across the venturi meter tapping points is equivalent to 8 m of the flowing liquid. Diameter of the pipeline is 20 cm. Calculate the throat diameter of the venturi meter. Assume the coefficient of discharge for the venturi meter as 0.96.
An oil of specific gravity 0.84 is flowing through a horizontal venturimeter fitted to a 258 mm diameter pipe at the rate of 112 liters/s and throat diameter is 136 mm. The pressure gauges are inserted at the entrance and the throat show pressures of 0.132 N/mm2 and 0.075 N/mm2 respectively. Calculate (i) the head difference in m of oil, (ii) the theoretical discharge in m3/s, (iii) the actual discharge in m3/s, and (iv) the coefficient of discharge of a venturimeter. If instead of pressure gauges, the entrance and throat of the venturimeter are connected in the two limbs of a U-tube mercury manometer, determine (v) the difference in the mercury level in meter.
An orificemeter with ortfice diameter 12 cm is inserted in a pipe of 20 cm diameter. The pressure difference between upstream and downstream of the orifice is 9.81 N/cm, The coefficient of discharge for orificemeter is 0.6. Find the discharge of water through the pipe.

Chapter 10 Solutions

Theory and Design for Mechanical Measurements

Ch. 10 - Determine the flow rate of 38 °C air through a...Ch. 10 - A square-edged orifice (p = 0.5) is used to meter...Ch. 10 - Size a suitable orifice plate to meter the steady...Ch. 10 - An in-line flow nozzle is to be used to measure...Ch. 10 - A cast venturi meter is to be used to meter the...Ch. 10 - For 120 ft3/m of 60 °F water flowing through a...Ch. 10 - Estimate the flow rate of water through a...Ch. 10 - A 2-in. (50.8 ram) diameter orifice plate is...Ch. 10 - In order to measure the flow rate ina2mx2mair...Ch. 10 - A flow nozzle is to be used at choked conditions...Ch. 10 - Compute the flow rate of 20 °C air through a 0.5-m...Ch. 10 - An ASME long radius nozzle (P = 0.5) is to be used...Ch. 10 - A square-edged orifice plate is selected to meter...Ch. 10 - Estimate the error contribution to the uncertainty...Ch. 10 - For Problem 10.24, suppose the air flow rate is 17...Ch. 10 - An application uses water flowing at up to...Ch. 10 - Dry air at a static pressure and temperature of...Ch. 10 - Dry air at a stagnation pressure and temperature...Ch. 10 - A sonic nozzle can be used to regulate flow rate...Ch. 10 - Select an appropriate range for a differential...Ch. 10 - From a vendor catalog or online site, select a...Ch. 10 - A vortex flow meter uses a shcdder having a...Ch. 10 - A thermal mass flow meter is used to meter 30 °C...Ch. 10 - Research available thermal mass flow meters...Ch. 10 - Fuel oil used in large sea vessels is known as...Ch. 10 - Estimate an uncertainty in the determined flow...Ch. 10 - A thermal mass flow meter is used to meter air in...Ch. 10 - A vortex meter is to use a shedder having a...Ch. 10 - An engineer has an application of water at 20 °C...Ch. 10 - The flow of air is measured to be 30 m3/min at 50...Ch. 10 - A 6 in. x 4 in. i.d. cast venturi is used to...Ch. 10 - A simple method to measure volume flow rate is to...Ch. 10 - In the problem 10.42, suppose volume can be...
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