Theory and Design for Mechanical Measurements
6th Edition
ISBN: 9781118881279
Author: Richard S. Figliola, Donald E. Beasley
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 10, Problem 10.22P
An ASME long radius nozzle (P = 0.5) is to be used to meter the flow of 20 °C water through a 8-cm-i.d. pipe. If flow rates range from 0.6 to 1.6 L/s, select the range required of a single pressure transducer if that transducer is used to measure pressure drop over the flow rate range. If the transducer to be used has a typical error of 0.25% of full scale, estimate the uncertainty in flow rate at the design stage.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A venturi meter with a throat diameter of 100 mm is fitted in a vertical pipeline of 200 mm diameter with oil of specific gravity 0.88 flowing upwards at a rate of 0.06 m-3 s'1. The venturi meter coefficient is 0.96. Two pressure gauges calibrated in kilo newtons per square metre are fitted at tapping points, one at the throat and the other in the inlet pipe 320 mm below the throat. The difference between the two gauge pressure readings is 28 kN/m-3. Working from Bernoulli's equation determine the difference in level in the two limbs of a mercury manometer if it is connected to the tapping points and the connecting pipes are filled with the same oil
Reynolds number for pipe flow may be expressed as
Re = (4 m/ Trd) / µ
Where m = mass flow, kg/s
d= pipe diameter, m
p = viscosity, k/m s
In a certain system, the flow rate is 5.448 kg/min +0.5 %, through a 0.5" (inch)
diameter (±0.005"). The viscosity is 1.92x 10-5 kg/m s, ±1 %. Calculate the
value of the Reynolds Number and its uncertainty. Determine the main
contribution to uncertainity.
20-
Pitot tube is a flow rate measuring device which measures exactly the quantity of fluid flowing every second in a pipe.
Select one: True
False
Chapter 10 Solutions
Theory and Design for Mechanical Measurements
Ch. 10 - Prob. 10.1PCh. 10 - A 20-cm-i.d. pipe through which 10 °C air flows is...Ch. 10 - What is the best estimate of the pipe flow rate...Ch. 10 - A mercury-filled (S = 13.57) manometer is used in...Ch. 10 - A capacitance pressure transducer is used to...Ch. 10 - Estimate the expansion factor in measuring the...Ch. 10 - The Reynolds number of a fluid flowing through a...Ch. 10 - At what flow rate of 20 °C water through a 10-cm-...Ch. 10 - Water (25 °C) flows through a square-edged orifice...Ch. 10 - An orifice plate is installed to meter air flow in...
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- PROCESS INSTRUMENTATION AND CONTROL In a differential pressure flow meter, determine the velocity at the outlet for the given technical specification. The density of the liquid flowing through the pipeline is 997 kg/m³, Pressure at inlet is 10 lb/ft2, pressure at outlet is 8 lb/ft2 and cross sectional area of the orifice is 0.2512 m. Note: Ratio of meter diameter to pipe diameter is 0.5 and discharge coefficient is 0.61. Also, find the flow rate.arrow_forwardFluid with a density of 800 kg/m^3 and velocity of 9.375 m/sec flows through a pipe diameter of 20 mm pipe and wall roughness of 0.02 mm. Using Moody chart, determine the approximate friction factor if the viscosity of the fluid is 0.015 kg/(m-sec)? Moody chart 10 0.05 Sato 0 025 :0.01 0.007 F0 001 0.0001 smooth 0.00005 Re [-) O 0.025 O 0.055 O0.035 O0.015 O 0.075 RELATIVE ROUGHNESS O OO0arrow_forwardA 100 mm by 50 mm Venturi meter is installed in a 100 mm diameter pipe to measure the flow of a certain liquid (sp gr 1.20). A differential gage connected with the inlet and throat contains a substance (sp gr 1.5) in the lower part of the tube, the remainder of the tube being filled with the certain liquid. The difference in height of substance columns in the two legs of the tube is 75 cm. If the coefficient of the meter is 0.97, compute the actual discharge.arrow_forward
- On a single plot, plot three curves that show the relationship between the pressure generated by thepump as a function of flow rate of water at 20 °C through the three branches of the piping systemshown below. Delta P on y axis and flow rate on the x axis. The pressure range is 0 to 1 MPa. (Branches 1 and 3 are in the same plane; branch 2 is located 5 m above the other two branches. Pipe inner diameter: 0.0254 mPipe material: copperTypical mass flow rate of interest: 0.5 kg/sIgnore minor losses of tee's at points A and B and any features of branch 3Consider minor losses of two 90° elbows in branch 2arrow_forwardFluid with a density of 1200 kg/m^3 and velocity of 5.952 m/sec flows through a pipe diameter of 1400 mm pipe and wall roughness of 0.07 mm. Using Moody chart, determine the approximate friction factor if the viscosity of the fluid is 0.01 kg/(m-sec)? 8 m 28 m 7142 m 5212 m 14 marrow_forwardThe mass flow rate from a Bernoulli obstruction meter is given as: m = CA/2PAP/(RT,) Find the percent uncertainty in the mass flow rate for the following data: 0.9 ± 0.0075, Pj= 30 psia ± 0.8 psia, T1 = 85 F ± 1 F, AP = 1.5 psi ± 0.0035 psi, A = 1.5 in? ± 0.001 in? Carrow_forward
- Q3// A rotary filter is required for the filtration of a slurry to produce 10 m' in 3500 s, the pressure difference is a constant at 70 kN/m´ and 20% of the drum is submerged in the slurry. A sample was tested on a laboratory filter of area 0.023 m² to which it give filtrate at a constant rate of 0.0125 m/s. The pressure difference across the test filter increased from 14 kN/m? after 300 s to 28 kN/m² after 900 s. What are suitable diameter for the rotary filter. Assuming that the resistance of the cloth used is the same that on the test filter.arrow_forwardSOLVES TEP BY STEP DONT USE CHATGPT DONT USE AI 3. An oil of viscosity 1.8 cp and relative density 0.8 is contained in an open tank located above the application site. A 1.5-inch diameter pipe extends vertically from the bottom of the tank and is 5 m long. The oil level in the tank remains constant at 3 m above the bottom of the tank. In a case with friction the discharge speed can be obtained in the form of the following Equation. Calculate the flow rate of oil discharged per hour. Assume that the pipe is commercial steel (ε=0.05 mm). V= 2gh +f-arrow_forward5. Water at 20 °C flows through a horizontal 1-mm-diameter tube to which are attached two pressure taps a distance 1 m apart. (a) What is the maximum pressure drop allowed if the flow is to be laminar? (b) Assume the manufacturing tolerance on the tube diameter is D = 1.0 0.1 mm. Given this uncertainty in the tube diameter, what is the maximum pressure drop allowed if it must be assured that the flow is laminar?arrow_forward
- Determine the pressure drop over a reducer with the following conditions: Fluid density: 25 kg/m3Fluid velocity: 1.5 m/sFluid viscosity: 0.001 Pa*sInlet diameter: 0.12 mOutlet diameter: 0.019 mPipe absolute roughness: 4e-4 m Give your final answer in Pa, rounded to the nearest whole number. [Ignore entrance/exit losses and velocity loss terms]arrow_forwardProblem 1: Identify the components of the Herschel venturi meter shown below that correspond to the following stages of a generalized measurement system: process, sensor, transducer, and output. Justify your answers. Convergent entrance Throat Cylindrical inlet Divergent outlet 21°-- 7° or 15°- °p P2 P1 Figure 1: Herschel venturi fluid flow meter with differential pressure pı> p2arrow_forwardThe theoretical flowrate calculated for a venturi meter is 0.00015885 m³/s. The actual flowrate recorded using a stopwatch and volumetric container is 0.00015726 m3/s. Calculate the coefficient of discharge of the venturi meter. Hence calculate the actual flowrate you would expect if, at a different setting, the venturi was to record a theoretical flowrate of 0.00019357 m3/s [Answers in I/s, Numerical Value only] Answer: Next page age Search for anythingarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
Principles of Heat Transfer (Activate Learning wi...
Mechanical Engineering
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Cengage Learning
8.01x - Lect 27 - Fluid Mechanics, Hydrostatics, Pascal's Principle, Atmosph. Pressure; Author: Lectures by Walter Lewin. They will make you ♥ Physics.;https://www.youtube.com/watch?v=O_HQklhIlwQ;License: Standard YouTube License, CC-BY
Dynamics of Fluid Flow - Introduction; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=djx9jlkYAt4;License: Standard Youtube License