Papers: 2015

Fundamentals Of Volume Measurement (turbine Meters)

Author: Tony PetittoDownload File

Turbine meters have been used for the custody transfer of refined petroleum products and light crude oils for over 40 years. When correctly applied, they offer high accuracy and long service life over a wide range of products and operating conditions. Traditionally, turbine metes were used for the measurement of low viscosity liquids and PD […]

Fundamental Principles Of Gas Turbine Meters

Author: Robert BennettDownload File

Gas measurement in the U.S. and around the world is dominated by diaphragm, rotary, turbine, and orifice meters. Each serves a different segment of the gas industry and each has its own set of advantages and disadvantages. These four main types of meters can be broken into two distinct categories: positive displacement, and inferential. Diaphragm […]

Fundamental Principles Of Rotary Displacement Meters

Author: Cristina Alfonso Download File

Natural gas measurement today is accomplished through the use of two different classifications of gas meters. The first consists of inferential type meters, including, orifice, ultra-sonic and turbine meters, and the second is the positive displacement meters, which consist of diaphragm and rotary displacement meters. The inferential type meters are so-called because rather than measuring […]

Fundamental Principles Of Diaphragm Displacement Meters

Author: Robert BennettDownload File

The first gas company in the U.S., The Gas Light Company of Baltimore, Maryland, founded in 1816, struggled for years with financial and technical problems while operating on a “flat rate” basis. Its growth was slow with the charge for gas service beyond the pocketbook of the majority. By comparison, the New York Gas Light […]

Fundamentals Of Pressure Relief Valves

Author: Gary BeckettDownload File

What Are They and Why Are They Needed What: A stand-alone device that opens and re-closes at a pre-selected pressure, containing an orifice sized to flow a required capacity to prevent / avoid overpressure. Why: All natural gas equipment (pipelines, pressure vessels, air-cooled heat exchangers, compressor cylinders, odorant tanks, instrument control lines, valves, underground storage, […]

Unaccounted-for Gas Study In Gas Distribution Networks

Author: Jay ShifletDownload File

In the Gas Distribution business Unaccounted Gas is referred to by various names or terms such as: Lost and Unaccounted-For, LUG, L&U, and UAF. In simplest terms, Unaccounted Gas is the result of the formula “gas receipts minus gas deliveries”. For the Measurement Group the process amounts to a “gas inventory reconciliation” based on the […]

Ultrasonic Meters For Residential And Commercial Applications

Author: Paul HoncharDownload File

An ultrasonic meter falls into the classification of inferential meters. Unlike positive displacement meters that capture volume to totalize volume, inferential meters measure flowing gas velocity to totalize volume. Orifice meters use pressure drop to measure velocity to infer volume and turbine meters use the speed of the rotor to measure velocity to infer volume, […]

Field Inspection And Calibration Of Volume Correcting Devices

Author: Tony SantoDownload File

Timely, diligent field testing and calibration of gas volume recording and correcting instruments ensure that measurement information fairly represents actual volumes. The instruments save a company capital and operating costs because they can record or integrate volumes at pressures and temperature above the normal pressure base conditions specified in contracts for volume calculation. This allows […]

Wireless Meter Reading

Author: David AnglinDownload File

There was once a time when you could get a car in any color…as long as it was black. They had frames, running boards and 15 horsepower engines. Who could ever need more? Just like the auto industry has adapted from this original approach to meet the demands of consumers, regulators and shareholders, the gas […]