electrical leak Articles

  • Oxygen Monitors now Required for Nitrogen, Argon, Helium, and CO2 use in Denver

    The Colorado city of Denver recently passed a new law that requires facilities that use insert gas to install oxygen deficiency monitors wherever these gases are used in excess of 100 pounds. Learn what the new law requires from businesses and how an oxygen sensor protects your employees, your business, and your peace of mind.  What Denver's New Law Requires  The law ...

  • Seek the Leak

    Federal regulations (with stiff penalties) govern how to deal with refrigerant emissions. Of course, installing a good facility refrigerant management plan can keep your organization ...


    By IHS

  • 13 surprising tools a plumber needs

    What tools does a plumber need in their tool box? Professional installers tell us they use these top 13 plumbing tools time and again. Our list of surprising plumbing tools goes beyond your day-to-day staples of a good hacksaw, a set of well-engineered adjustable spanners, basin spanners, screwdrivers and a decent tape measure. Great all-rounder plumbing tools ...


    By Kingspan Environmental Ltd

  • Detection and Location of Leaks in Geomembrane Liners Using an Electrical Method: Case Histories

    ABSTRACT A field-proven electrical technique, developed at Southwest Research Institute, San Antonio, Texas, is commercially available to detect and locate leaks in geomembrane liners. The electrical technique is used to inspect 100% of the geomembrane material that is covered by a conducting liquid. A voltage applied across the liner produces a uniform electrical potential distribution in ...

  • Performance-Based Specification Of Electrical Leak Location Surveys For Geomembrane Liners

    ABSTRACT Electrical leak location surveys can be a crucial part of the final quality control of geomembrane liner installations. The method has been offered as a commercial service since 1985 and is the only practical test method that can find holes in the liner after protective soil cover is put on the liner. During the past fourteen years the test method has been used on a wide variety of ...

  • Electrical Leak Location Arc Tester to Revolutionize Liner Quality

    New equipment has been developed that behaves like a spark tester, but doesn’t have to be performed on conductive-backed geomembrane.  It has the same requirements as the water puddle and water lance methods in terms of a conductive layer underlying the geomembrane, including soil.  It is not a spark tester, which is used exclusively on conductive-backed geomembrane; yet, it ...


    By TRI Liner Integrity Services

  • Closing the last Energy Leak

    The heat contained in wastewater is one of the last major untapped resources in the field of renewable energies, despite the fact that it may some day provide some 20% of the heating energy we need. This huge potential has been addressed by a Swiss engineering office, Rabtherm AG, which now supplies patented technology for generating energy from wastewater, used for heating or cooling buildings. ...


    By RABTHERM AG

  • Electrical Method

    Vertical Electrical Soundings - Designed and performed vertical electrical soundings (VES) for proposed landfilling sites, utilizing an electrical resistivity system to determine depth to the water table. ADEQ project. Electrical Resistance Tomography - Participated in the Leak Detection Monitoring and Mitigation (LDMM) Project that utilized Electrical Resistance Tomography (ERT) developed by ...


    By ECA Geophysics

  • Comparison of dye testing and electrical leak location testing of a solid waste liner system

    Abstract: Dye tracing and electrical leak location testing were independently conducted to detect and locate leaks in the primary geomembrane liner of two cells in a municipal landfill. Despite extensive quality control and quality assurance programs, water in the leak detection zone after construction indicated that the primary liner had a leak. Fluorescein dye tests were conducted by placing a ...

  • Locating Geomembrane Liner Leaks under Waste in a Landfill

    Abstract An Electrical Leak Imaging and Monitoring (ELIM SM) survey was used to locate leaks under 2.5 meters of stabilized waste in an active geomembrane-Iined landfill. The landfill is lined with two 2-mm thick HDPE geomembranes that are separated by a geonet drainage layer. The primary liner is covered with 600 mm of drainage sand and 2.5 meters of stabilized waste for a total cover ...

  • Locating Leaks in Geomembrane Liners of Landfills Covered With a Protective Soil

    ABSTRACT The electrical leak location method was used to locate leaks in the geomembrane liners of single-lined and double-lined landfills covered with a protective soil cover. The landfills ranged in size from 0.40 hectare (one-acre) to 3.2 hectares (eight-acre). Water in the leak detection system under the primary liner indicated the primary liners were leaking. The principal of ...

  • Enhanced Geomembrane CQA through proper application of geomembrane leak location surveys

    Abstract Historically, geomembrane construction quality assurance (CQA) has focused on destructive testing of welded seams to verify seam strength and integrity. Paradoxically, seams are not subject to significant stress and practically never fail in service, while holes and construction damage in the geomembrane are a much more widespread problem. The historical approach fails to evaluate ...

  • Experience with GCLs used as a conductive layer in geomembrane leak-location surveys

    Engineers, installers, regulators, and owners are starting to rely on geomembrane leak-location surveys as part of the construction quality assurance for landfills. The various methods are described in ASTM Standard D 6747.' Standard procedures for conducting leak-location surveys of geomembranes covered with earth materials are described in ASTM Standard D 7007.2 Figure 1 shows the ...

  • Scanning for Leaks & Sinkhole Detection in a Retention Pond - Case Study

    In January 2015, one of our clients used AGI tools and software for leak and sinkhole detection in the liner of a retention pond in Tennessee. Process Our client’s customer had a retention pond that was designed to hold liquid, but it was leaking through a hole in the liner. The client used the ...


    By Advanced Geosciences, Inc.

  • GE Leakwise Application Notes: Oil Leaks at Power Generation Plants

    Fossil Fuel Power Generation Fuel fired power generation plants have several oil storage tanks for feeding fuel to the power units. Coal or gas fired power generation plants also have oil storage tanks to be used for start-up or as a back-up energy source. All ...


    By GE Analytical Instruments

  • Amistad Dam: Identifying Critical Leaks in the Amistad Dam - Case Study

    Why was the Amistad dam emptying—and what could be done to solve the problem? In 1996, the Comision Federal de Electricidad (CFE), the national electric company of Mexico responsible for the Mexican half of the Amistad Dam, contacted AGI. The CFE heard about the capabilities of our instruments to look into the ground, and they were ...


    By Advanced Geosciences, Inc.

  • Hydrogen-cooled electric generators case study

    Application Moisture contamination is measured in the hydrogen gas used to cool large stationary electric generators. Problem Hydrogen is used to cool the bearings and other rotating parts of large stationary electric generators. Hydrogen is the best choice for a cooling gas because of its unique combination of high thermal conductivity and low viscosity. In ...

  • Run cars on green electricity, not natural gas

    With the dramatic increase in oil prices earlier this year translating into higher prices at the gas pump in the United States, concerns over US dependence on foreign oil are once again part of the national discussion on energy security. Combined with the growing understanding that carbon emissions from the combustion of fossil fuels are driving global climate change, the debate is now focused on ...


    By Earth Policy Institute

  • Is it better to burn or bury waste for clean electricity generation?

    The use of municipal solid waste (MSW) to generate electricity through landfill-gas-to-energy (LFGTE) and waste-to-energy (WTE)projectsrepresentsroughly14%ofU.S.nonhydrorenewable electricity generation. Although various aspects of LFGTE and WTE have been analyzed in the literature, this paper is the first to present a comprehensive set of life-cycle emission factors per unit of electricity ...


    By Novo Energy, LLC

  • Is your Plant as tight as you think? Leak Detector for extremely toxic Gases, a Field Test Report

    Leak detection of commodity gases in chemical plants is a day-to-day practice. The sensor technology available for this application is field proven and reliable. No question about it, existing sensors will do the job. However, in plants manufacturing or handling extremely toxic substances, the picture is different. For example, take phosgene. The existing sensor technology for leak detection ...

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