thermal conductivity monitoring Articles

  • In-situ Thermal Remediation Under an Apartment Building

    This paper presents the implementation and results of ET-DSP, an in-situ electrical soil heating technology, in combination with high vacuum dual phase extraction, to achieve the removal of vapour pressure sensitive BTEX compounds from under an occupied residential apartment building. Operating within several engineering, environmental, and safety constraints, a design was developed in order to ...


    By McMillan-McGee Corp.

  • Air Monitoring for the Gulf Oil Spill

    Ambient air monitoring is a priority in the ongoing efforts to contain and manage the oil spill from the Deepwater Horizon in the Gulf of Mexico. The following provides information about the kinds of airborne contaminants that are currently being monitored in the Gulf, how they are collected and how they are analyzed. For a given project, a suitable sampling plan – developed by ...


  • Temperature and Humidity Monitoring Protects Building Insulation

    CAS DataLoggers recently provided the datalogging solution for a large manufacturer of insulation materials which had an ongoing problem with moisture getting in during storage and shipment of their insulation rolls. The company’s thermal insulation was crucial to its customers in construction due to its ability to improve energy efficiency and to ...


    By CAS DATALOGGERS

  • Reliable silica monitoring supports power station efficiency

    West Burton B CCGT is a Combined Cycle Gas Turbine power station near Nottingham in the UK. It has three open-cycle gas turbines capable of generating enough electricity for approximately 1.5 million UK homes. In common with all combustion based power stations, the CCGT has a requirement to monitor silica levels in the Plant’s water and steam processes. Sean Todd, the Plant’s Control ...

  • New monitoring technology helps reveal Arctic secrets

    A group of Arctic researchers has employed the latest monitoring technology to investigate the effects of climate change, by measuring temperature and salinity in the water column beneath surface ice. The results of the investigation, which utilised YSI’s new 'Castaway-CTD', could cast new light on our understanding of the ways in which shifting ocean currents impact upon the climate in ...

  • Generator gas analyzer for monitoring of hydrogen cooled turbo generators

    Hydrogen cooled generators require safety measures that reliably prevent the formation of explosive gas mixtures during normal operation as well as maintenance periods. Thermal conductivity technology based gas analyzers are used for that task. A standardized CALOMAT 6 analyzer system - Set GGA - has been especially designed for this measuring task. Regarding redundancy and explosion ...

  • Case study - Remote water quality monitoring in South Africa

    Situated in the Mpumalanga province of South Africa, the Xstrata Coal South Africa (XCSA) runs several open cut and underground mining operations producing thermal coal. To ensure their mining operations do not affect the surrounding natural water bodies, the company employs Hydrolab and OTT water quality monitoring equipment with remote data transmission options: the OTT ecoLog 800 water level ...


    By The OTT Hydromet Group

  • Environmental monitoring solutions - Total solution for measuring benzene in gasoline – Case Study

    EPA rule 40 CFR Parts 59, 80, 85, 86 (Control of Hazardous Air Pollutants From Mobile Sources) is about to reduce allowable emissions of benzene and other mobile source air toxics. It originally went into effect on April 27, 2007, with a recent Final Release on October 8, 2008. On January 1, 2011, the rule limits the benzene content of reformulated gasoline (RFG) and conventional gasoline (CG) ...

  • Portland, Or - Deep, DNAPL remediation

    In 1999, the senior managers of Thermal Remediation Services, Inc (TRS) while working for a former employer, as a subcontractor to AMEC, provided Electrical Resistance Heating (ERH) for VOC-impacted groundwater at a commercial site in Portland, Oregon. The remediation was conducted under the Oregon Department of Environmental Quality (DEQ) Voluntary Cleanup Program. The remedial action objective ...


    By TRS Group, Inc.

  • Using solver to determine vertical groundwater velocities by temperature variations, Purdue University, Indiana, USA

    Vertical groundwater velocities can be estimated based on directions of groundwater thermal gradients. Temperature-depth profiles were obtained from 12 monitoring wells at 3 different times of the year (Fall, Winter, and Spring) in West Lafayette, Indiana (USA) mainly on the Purdue University campus. Microsoft Excel Solver was used to match plots of groundwater temperature distribution in the ...


    By Springer

  • Natural Gas: Complete Analytical Solution

    Chromatotec® has developed in its Research & Development laboratories, a new instrument for hydrocarbon (C1-C6+) measurements and calorific values as well as WOBBE index computation. This analyzer is based on chromatography principle using a Thermal Conductivity Detector (TCD). The sample will be separated into the column and quantified by the detector. A difference of thermal ...


    By Chromatotec Group

  • First State-funded cleanup using electrical resistivity heating technology

    The Remediation and Redevelopment Division (RRD) completed remediation at a former dry cleaning facility in the city of Owosso using electrical resistivity heating (ERH) technology. Electrical resistivity heating is an in­situ electrical heating technology that uses electricity and applies it into the ground through electrodes. The resistance of the electricity traveling through the ground ...


    By TRS Group, Inc.

  • USPS UST spill site remediation US postal service, White Plains vehicle maintenance facility White Plains, NY

    GEA served as an engineering design and environmental compliance consultant as well as Site Manager providing CM services for site remediation and cleanup. Two underground diesel and gasoline storage tanks were removed from the VMF site when a gasoline spill was discovered during the excavation. Services provided by GEA included:· Construction Management Services·  UST ...


    By GEA Engineering PC

  • Analysis of DNAPL Source-Depletion Costs at 36 Field Sites

    A recent U.S. Environmental Protection Agency (US EPA) expert panel on dense nonaqueous phase liquid (DNAPL) remediation concluded that uncertainty in the costs and benefit of applying source-depletion technologies (i.e., active remediation in source zones) is one key factor that discourages widespread use of these technologies at DNAPL sites (Kavanaugh et al., 2003). To reduce this uncertainty, ...


  • Analysis of DNAPL source depletion costs at 36 Field Sites

    Abstract A recent U.S. Environmental Protection Agency expert panel on dense non-aqueous phase liquid (DNAPL) remediation concluded that uncertainty in the costs and benefits of applying source depletion technologies (i.e., active remediation in source zones) is one key factor that discourages widespread use of these technologies at DNAPL sites (Kavanaugh et al., 2003). To reduce this ...


    By TRS Group, Inc.

  • Soil baked to clean up contamination...

    Can an old drill site be cleaned up without adding truckloads of contaminated soil to the landfill? Chevron Canada will be using a technology called thermal desorption to clean up a site located 13 kilometres southwest of Pincher Creek. Leif Sollid, spokesman for Chevron, who is the operator of the site, said they considered two options for the clean up. The soil is classified as a non-dangerous ...

  • Tacoma, Washington - Well 12A superfund site - Case Study

    Combined Remedies for DNAPL Remediation Project Summary TRS Group, Inc. (TRS) teamed with KEMRON and AMEC, under KEMRON's U.S. Army Corps of Engineers (USAGE) Environmental Remediation Services Multiple Award Task Order Contract (MATOC), to perform electrical resistance heating (ERH) for the remediation of volatile organic compounds (VOCs) in the vadose zone ...


    By TRS Group, Inc.

  • INFRARED TECHNOLOGY - It`s Use in Forensic Building Science to Solve Moisture Intrusion Problems

    This paper will focus discussion on the building envelope, the science behind the inspection, techniques for inspection, and verification of the findings. Because much of our work is pioneering, we will end by addressing the question 'Where do we go from here?' WHY USE INFRAREDA picture says a thousand words; infrared thermography is the only diagnostic technology that lets you instantly ...

  • Aerial Radiation Detection

    In this time of multiple threats to our security: dirty bomb; cyber; shooters in public places; homemade bombs; misinformation; etc. we feel extremely vulnerable; perhaps more vulnerable than ever before. With the advent of Drone technology now available to private citizens, technology previously only held by the military, the opportunity has come to marry Drone Technology with aerial sensors. ...


    By Technical Associates

  • Aerating recycled water on mushroom composting sites affects its chemical analysis and the characteristics of odor emissions

    Recycled water (RW) containing compost leachate can be a potent source of foul odor on mushroom composting sites. Samples of RW were repeatedly collected from storage tanks and pits of 14 mushroom composting sites in England and Ireland. Relationships between the effects of submerged aeration of the RW, the chemical and microbial characteristics of the RW, and the odors emitted were investigated. ...

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