WASTEWATER FLOW CONTROL AND MEASUREMENT ARTICLES
WASTEWATER FLOW CONTROL AND MEASUREMENT WHITE PAPERS AND CASE STUDIES
In February of 2014, due to severe drought conditions, the Federal Bureau of Reclamation informed central California farmers that they would receive no irrigation water from the lakes, canals and reservoirs under the Bureau’s control.
Mass Or Volume? A Weight Off The Bottom Line
Confusion often arises over the difference between mass and volume flow measurement and when a particular measurement should be applied.
Water District Solves Metering Problem: Non-Intrusive Ultrasonic Technology Provides Accurate Measurements
The Jacksonville JEA water district had a problem. Its measurements showed that it was distributing significantly more water than it was removing from its wells.
Beating Your Water Bill: How Fast, Accurate Water Usage Data Improves Customer Relations
Municipality arrives before the water bill to alert customers of unusual spikes in usage.
Ashley Valley Water & Sewer Improvement District Relies On FPI Mag Flow Meter To Comply With Allocation Quota
Ashley Valley Water & Sewer Improvement District (AVWSID) serves rural county residents who live outside the city of Vernal, Utah.
DM Petroleum Operations Relies On FPI Mag Flow Meter For Tough U.S. Strategic Petroleum Reserve Application
New tests recently performed by DM Petroleum Operations Company with the FPI Mag® Flow Meter from McCrometer continue to confirm the flow meter’s accurate performance and reliability on two rugged Texas brine disposal lines supporting the U.S. Strategic Petroleum Reserve (SPR).
Next Generation FPI Mag Flow Meter Helps Provide Clean Water For Seattle
The Cedar Water Treatment Facility (CWTF) serves the residents of the City of Seattle. This state-of-the-art plant was designed and built, and is now operated by CH2M Hill. Working together, CH2M Hill and McCrometer improved flow measurement at the facility with the FPI Mag® Flow Meter.
Ultrasonic Flow Measurement System Saves WWTP $72,500 Annually
If the wastewater treatment plant serving Reading, PA, and 11 surrounding municipalities has a mission statement for its day-to-day operations, it couldn’t be simpler or more critical: “95°F.”
Water Surge Prevention: Analysis Of Solutions And Alternatives
Water Surge could cause damage in a water conveyance system, from leaking pipes to serious breakdowns and accidents the consequences of which could lead to heavy financial costs and even loss of life. There are various solutions that are able to prevent or reduce the damage. It is important to know the differences between the solutions, and the advantages and disadvantages of each technology, before recommending the most suitable solution for the system.
New Developments In Thermal Dispersion Mass Flow Meters
This paper describes a newly developed microprocessor-based thermal dispersion mass flow meter that uses four temperature sensing elements in its flow sensor instead of the traditional two elements and automatically manages changes in gas selection, gas temperature, gas pressure, and outside temperature. By John G. Olin, Ph.D., Founder/Chairman, Sierra Instruments
Advanced Diagnostics of Thermal Mass Flow Meters
Many thermal mass flow meters are of the insertion type. As a starting point, proper insertion depth and straight run per the manufacturer’s recommendations should be adhered to.
Two phase flow is notoriously problematic for most flow technologies. Read how ABB is tackling the 2-phase flow problem through an entire meter-design approach, which entails a state of the art electronics platform and innovative sensor technology. By Ron DiGiacomo
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WASTEWATER FLOW CONTROL MEASUREMENT APPLICATION NOTES
Lab Gas Sub-Metering Accuracy Improves With Thermal Flow Meters To Save Money
Facility administrators will find the advanced ST100 Series Thermal Mass Air/Gas Flow Meter from Fluid Components International (FCI) helps them improve the accuracy of specialty gas point of use and sub-metering operations to achieve accurate billing in their labs for better cost tracking and control.
Non-Contact Radar Level Meter Improves Reactor Vessel Measurement
A North Carolina-based specialty chemical manufacturer, a major producer of insect repellent, was looking for a better way to measure the liquid level in its glass-lined agitated reactor. The company uses a number of complex technologies to manufacture sebacates, adipates, isophthalates, catalysts, alkyds, and other natural and renewable chemistries based on castor and citrates.
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FLOW CONTROL AND MEASUREMENT
Flow measurement can be defined as quantification of the movement of water in a given channel. Flow can be measured either by determining the displacement and/or Velocity of the water. Water meters usually control measure and display total usage in cubic meters, on either mechanical or electronic registers.
Flow can be divided into two main flows which are: Open channel flow and Closed conduit flow. Flow is controlled by use of valves at intervals to either to slow down, allow faster flow or completely shut down the flow. Some water meters usually perform both the function or making readings and controlling flow while others just conduct measuring only.
Meters for reclaimed water contain special lavender register covers show that the water is non-potable. Velocity-type meters measure the velocity of flow through a meter of a known internal capacity. The speed of the flow can then be converted into volume of flow for usage. Since Multi-jet meters are usually very accurate in small sizes they are normally used for residential and smaller commercial uses. Turbine meters are not as accurate as jet meters and displacement meters at low flow rates.
A compound meter is used where high flow rates are necessary. Magnetic flow meters are a velocity-type water meter, except that they use electromagnetic properties to determine the water flow velocity. In water treatment plants, measurement and control devices can be installed in the following locations: within interceptors or manholes, the head of the plant, in the force mains that lead to main tanks etc. Automatic Meter Reading has compelled producers to build pulse or encoder registers to provide electronic output for radio transmitters, reading storage devices, and data logging devices.