Overview
The term pipe flow is being used here to refer to any closed conduit flow under pressure. The closed conduit is often circular, but also may be square or rectangular (such as a heating duct) or any other shape. The other major category of flow is open channel flow, which is any flowing liquid, which has a free surface open to atmospheric pressure.
Measurement of the flow rate of a fluid flowing under pressure, is carried out for a variety of purposes, such as billing for water supply to homes or businesses or for monitoring or process control of a wide variety of industrial processes, which involve flowing fluids. Several categories of pipe flow measurement devices will be described and discussed including associated calculations with some of them.
This course will cover types of pipe flow measurement devices, differential pressure flow meters, velocity flow meters, variable area flow meters, and positive displacement flow meters.
To receive PDH credit, the student must pass a multiple-choice quiz of fifteen (15) questions.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Flow rate calculation from measured pressure difference, fluid properties, and meter parameters, using the provided equations for venturi, orifice, and flow nozzle meters
- Which type of ISO standard pressure tap locations are being used for a given orifice meter
- The orifice coefficient, Co, calculation for specified orifice and pipe diameters, pressure tap locations and fluid properties
- The relative advantages and disadvantages of venturi, orifice, and flow nozzle meters in comparison with each other
- Estimation of the density of a specified gas at specified temperature and pressure using the Ideal Gas Equation
- General configuration and principle of operation of rotameters and positive displacement, electromagnetic, target, turbine, vortex, and ultrasonic meters
- Recommended applications for each of the type of flow meter discussed in this course
- General characteristics of the types of flow meters discussed in this course, as summarized in Table 2 in the course content
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
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