Go with the Flow
Water & Wastes Digest
February 2008
By James Panek
Flowmeter technology helps storm water management professionals accurately measure notoriously variable flows
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Flowmeters Defined
Water & Wastes Digest
August 2006
David W. Spitzer
Vortex shedding, Coanda effect and vortex precession fluidic flowmeters
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Going with the Flow
Water & Wastes Digest
February 2005
By Brian Roughan
Appomattox, Va. River Water Authority recently installed an electromagnetic flowmeter in their fluoride feed line to measure instantaneous and total flow
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How Does Pump Suction Limit the Flow?
Pump Source
April 2003
One of the claimed advantages of centrifugal pumps over positive displacement pumps is their ability to operate over a wide range of flow. Since a centrifugal pump operates at the intersection of a pump curve and a system curve, by varying the system curve the operating point of the pump easily is changed. The convenience and simplicity of such flow control by the discharge valve throttling comes at a price because a pump is forced to run either to the left or right of its best efficiency point (BEP). The flow must be limited on both sides of the BEP.
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Assessing Leakage in Water Supply Networks Using Flowmeters
Water Engineering & Management
March 2003
Richard Furness, PhD., CEng. and ISA Fellow
Flowmeter usage is diverse and central to the entire water cycle control within the industry. The metering process directly or indirectly influences resource management, process control, new works planning, distribution management, leakage detection, financial control and environmental issues.
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At Work on Flow Metering Devices
Water Engineering & Management
January 2003
Professional flow data analysis now is accomplished easilyby the city's own engineering staff utilizing data management and report generation software.
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Meters - High-accuracy Stormwater, CSO Flow Monitoring
Water & Wastes Digest
July 2002
Ultrasonic transit-time flowmeters can be used to good effect for meeting specific site monitoring and documentation requirements by providing highly accurate and continuous flowrate measurement during dry- and wet-weather conditions.
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At Work on Flow Measuring Devices
Water Engineering & Management
January 2001
In the past, a pitot tube meter was used to profile the pipe and measure the flow at the two points. The valuable time required by divers to accomplish flow profiling on the gulf sea floor and less than satisfactory results led to a search for a better flowmeter.
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Ultrasonic Flowmeters Provide Cost-effective Measurements
Water & Wastes Digest
January 2000
If your wastewater plant is like most others, you are probably using several flowmeters to monitor the system. But as the cost of water rises, so does the cost of measurement. A comprehensive line of flowmeters is available from Panametrics in Waltham, Mass., to accurately and reliably measure many liquids.
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Understanding and Solving Fracture Flow Problems
Water Engineering & Management
September 1997
Dr. Thomas Doe
This article compares fracture flow with flow in more conventional porous systems and suggests solutions to fracture flow problems.
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Verifying Open Channel Flowmeter Performance
Water & Wastes Digest
May 1997
Larry Marsh
Literally billions of dollars in infrastructure decisions are based on the results from I & I studies using velocity area flowmeters. When thoroughly tested, most commercial flowmeters are shown to be inadequate for most wastewater flow measurement needs.
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Velocity Flowmeter Aids Sanitary Wastewater Sewer System Evaluation Survey
Water Engineering & Management
May 1997
The end of the sewer line for unincorporated Sedgwick County is the Kansas Coliseum. Home to two professional sports teams, the 10,000-seat events arena hosts concerts, exhibitions and livestock shows. A 25,000-seat outdoor amphitheater expansion is now being considered. In addition, a proposal is in effect for a nearby residential development.
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