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Related Concept Videos

Pipe Flowrate Measurement01:28

Pipe Flowrate Measurement

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In pipe flow measurement, orifice, nozzle, and Venturi meters are commonly used to determine fluid flowrates by constricting the flow area, which increases fluid velocity and reduces pressure. This pressure difference, governed by Bernoulli's principle and adjusted for real-world conditions, is essential for calculating flowrate. Each meter type is suited to specific applications based on accuracy, efficiency, and compatibility with various flow conditions.
The orifice meter is a simple,...
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Pipe Flowrate Measurement: Problem Solving01:28

Pipe Flowrate Measurement: Problem Solving

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A spray tank system is engineered to uniformly distribute a pest-control liquid across plants by using a pressurized mechanism. The tank, pressurized to 150 kPa, holds the pesticide at a height of 0.80 meters. Liquid flows from the tank through a 1.9 meter pipe with a diameter of 0.015 meters, angled at 0.698 radians, ultimately reaching a 0.007 meter nozzle that sprays the pesticide. Accurate calculation of the system's flow rate is crucial to ensure uniform application, and this is...
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Single Pipe Systems01:24

Single Pipe Systems

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In pipe flow analysis, problems are typically categorized into three types — Type I, Type II, and Type III — based on the known parameters and the desired outcome. Each type of problem addresses specific engineering requirements using fluid properties, pipe characteristics, and operational conditions.
In a Type I problem, fluid properties (density and viscosity), pipe characteristics (including diameter, length, and surface roughness), and the flow rate or average velocity are...
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Glassware Calibration01:11

Glassware Calibration

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Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
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Bernoulli's Equation: Problem Solving01:16

Bernoulli's Equation: Problem Solving

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A Venturi meter is essential for measuring fluid flow rates in pipelines. It utilizes the relationship between fluid velocity and pressure described by Bernoulli's equation. When installed in a sewage system, the Venturi meter accurately determines the wastewater flow rate by measuring pressure differences.
The first step is to compute the cross-sectional areas of the pipe and the Venturi throat to analyze the pressure difference indicated by the pressure gauge. Next, the continuity...
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Conservation of Mass in Fixed, Nondeforming Control Volume01:07

Conservation of Mass in Fixed, Nondeforming Control Volume

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The principle of conservation of mass is fundamental in fluid dynamics and is crucial for analyzing flow within fixed control volumes, such as pipes or ducts. This principle states that the total mass within a control volume remains constant unless altered by the inflow or outflow of mass through the control surfaces. This results in a vital relationship for steady, incompressible flow where the mass entering a system equals the mass leaving it.
In the case of a sewer pipe, which can be modeled...
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Related Experiment Video

Updated: Jun 17, 2025

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores
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In Situ Pipe Prover Volume Measurement Method.

Jiacheng Hu1, Weikang Zhou1, Aijun Chen1

  • 1College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China.

Sensors (Basel, Switzerland)
|August 10, 2024
PubMed
Summary

A new in situ method precisely measures pipe prover volumes using geometric dimensions. This ultra-high-precision technique improves accuracy and shortens traceability chains for standard volume measurements.

Keywords:
dimensional methodgeometry measurementmeasurement uncertaintyvolume of pipe prover

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Area of Science:

  • Metrology
  • Mechanical Engineering

Background:

  • Accurate in situ measurement of standard pipe prover volumes is crucial for industrial processes.
  • Existing methods can be limited by traceability chains and measurement precision.

Purpose of the Study:

  • To develop a novel in situ method for measuring pipe prover volumes with improved accuracy.
  • To shorten the traceability chain for standard volume measurements.

Main Methods:

  • A geometric dimension approach was employed, measuring inner diameter and length.
  • Inner diameter was determined using a calibrated three-probe algorithm model.
  • Pipe prover length was measured segmentally using a laser interferometer.

Main Results:

  • The developed system achieved an expanded uncertainty of 0.012% (k=2) in volume measurement.
  • The deviation between measured and nominal pipe prover volumes was 0.007%.

Conclusions:

  • The proposed in situ measurement method provides ultra-high-precision volume determination.
  • This advancement enhances the accuracy and efficiency of pipe prover calibration.