Photoacoustic Gas Monitoring Articles

  • Monitoring Gas Emissions from Volcanoes to Predict Volcanic Activity

    To understand and predict the behaviour of volcanoes an increasing number of scientists are combining geological monitoring and geochemical models. By measuring and monitoring the prevalence of gases like CO2, scientists hope to be able to better predict the likelihood of volcanic eruptions. In 2010 Iceland’s Eyjafjallajökull volcano erupted, releasing 250 million ...


    By Edinburgh Instruments Ltd

  • Case study - Monitoring landfill gas

    Infrared absorption Infrared absorption is usually the preferred method for measuring methane and carbon dioxide. Most gases absorb radiation in the infrared region. The wavelength of radiation that is absorbed is determined by the natural vibration frequencies of the molecule. These natural frequencies will depend on several factors. Thus different gas molecules have different natural ...


    By Geotech

  • Case study - CO2 monitoring for Kerry Foods

    About the customer Kerry Foods, based in Okehampton, England develops, manufactures and delivers technology based ingredients for the worldwide food and beverage industry The Geotech product G100 CO2 analyser How the company operates The Kerry Foods plant processes food ingredients, such as fruit conserves and confectionery ...


    By Geotech

  • Case study - The convenient and reliable alternative to chemical-based gas measurement within your incubators

    With a typical laboratory having many incubators of different types and ages, checking CO2 and O2 levels is a challenge.  Even the most modern incubators need to be checked.  An electronic gas analyser offers a faster and more convenient method than historically popular chemical analysis.  Geotech looks at why their digital gas analyser, the G100, is fast becoming the go to product ...


    By Geotech

  • Case study - N°NG1 – Natural gas monitoring – Medor Exp

    Context & Challenges Natural gas used for household consumption typically contains odorant sulfur components for safety reasons. As natural gas is normally odorless, the sulfur components are artificially added. When natural gas is transported between various companies, regions or countries, gas companies have to verify that the sulfur species are present as specified. ...


    By Chromatotec Group

  • Air monitoring in the Bosnian valley of the pyramids – part 2

    In the first part of this series, ‘Air monitoring in the Bosnian Valley of the Pyramids—Part 1’, I recounted my trip to Visoko in March 2015. Bosnia and Herzegovina is a fascinating country and well worth going to—not only to experience Tunnel Ravne and the nearby ...


    By Analox Sensor Technology

  • Case-study - Improving monitoring, reporting and verification of greenhouse gas emissions

    Greenhouse gas (GHG) inventories are used by businesses, governments and members of the public as they provide levels of allowable carbon emissions and details of how emissions can be reduced. Some industrial sectors have high uncertainties in their MRV results which presents a barrier to carbon dioxide reductions. MRV Sector aims to improve and increase the accuracy of monitoring techniques in ...


    By Climate-KIC

  • Helium gas for nuclear reactors case study

    Application Moisture is measured in helium gas used for nuclear reactors. The helium is used as a reactor coolant because of its excellent thermal properties and chemical inertness. Problem If the helium becomes contaminated with moisture, it will cause both degradation of graphite rods and an undesired change in the process's heat balance. At worst, a ...

  • Saves Time and Money

    SK Innovation owns and operates the largest refinery in Korea. The Korea-based holding company is engaged in the development of petroleum and management of its subsidiaries. SK Innovation mainly operate in four business segments: oil, chemical, lubricant and R&D. In mid-2012 SK Innovation did a demo installation with analyzers from NEO Monitors for measuring oxygen. The laser technology used ...


    By NEO Monitors AS

  • Gas Monitoring for Ventilation Control and Energy Management

    The growing demand for underground and enclosed parking and maintenance garages (resulting from limitations on land availability) has increased the awareness and need for proper ventilation and control systems. In addition, increased health and safety programs have only added to the concerns of toxic and combustible gases in confined or enclosed spaces. Historically, ventilation and make-up air ...


    By Arjay Engineering Ltd.

  • Position Brief on oil and gas development of the Arctic

    Background The Arctic Circle encompasses roughly 6% of the earth’s surface. Wetlands make up about 60% of the total Arctic land mass and are the predominant ecosystem, however they are not well defined or understood. Arctic wetlands provide a wide range of ecosystem services such as the maintenance of permafrost, hydrology and water quality. Arctic wetlands have the highest ...


    By Wetlands International

  • Greenhouse gas mitigation in the EU: An overview of the current policy landscape

    In 2009, the European Union (EU) pledged a unilateral greenhouse gas (GHG) reduction target of 20 percent below 1990 levels by 2020, rising to 30 percent if “other developed countries commit themselves to comparable emission reductions” (European Council 2009). The EU’s GHG target forms one pillar of a so-called 20-20-20 package that, in addition to the 20 percent GHG reduction, ...

  • Fixed price contract versus incentive–based contract in the oil and gas industry

    The research question of this paper is to analyse when an operator and a service provider prefer a fixed price contract, common in the oil and gas industry, versus the uncommon incentive–based contract. The contracts are modelled with 20 parameters and one free choice variable which is the time to complete the project determined by the service provider. The method is to determine the ...


    By Inderscience Publishers

  • Fixed price contract versus incentive-based contract in the oil and gas industry

    Abstract: The research question of this paper is to analyse when an operator and a service provider prefer a fixed price contract, common in the oil and gas industry, versus the uncommon incentive-based contract. The contracts are modelled with 20 parameters and one free choice variable which is the time to complete the project determined by the service provider. The method is to determine the ...


    By Inderscience Publishers

  • Cofely selects eSight for monitoring and targeting of energy data from over 300 sites across the UK

    Cofely is the principal trading subsidiary of the Cofely Group in the UK. The Cofely Group is the service arm of Gaz de France, a leading international energy utility and service provider with a presence throughout the entire energy chain. Background Cofely provides a range of facilities maintenance, installation and energy contract services. Utilizing over 25 years of experience, ...


    By eSight Energy

  • Deeside laundry enjoys reduced gas bills following installation of gem steamtraps

    Leading Merseyside based linen and work wear rental company and laundry, Deeside Laundry, is enjoying saving of 15% on its gas bills and lower maintenance costs following the replacement of its mechanical steam traps with award winning Thermal Energy International’s GEM venturi orifice traps.  Thermal Energy International has installed 30 GEM steam traps throughout the laundry’s ...

  • Why is a carbon dioxide monitor a good investment?

    The easiest way to check if your house is encapsulating gases is to monitor the carbon dioxide (CO2) levels. This one gas is used as a marker for air quality, is the easiest to monitor, and provides a more accurate air quality reading. It is a good trend indicator because it changes in measurable amounts as the air quality gets worse. All other gasses in the house follow the same trend as the ...

  • Halliburton hunts new bacteria killer to protect Shale-gas boom

    Halliburton Co. and Schlumberger Ltd., trying to forestall a regulatory crackdown that would cut natural-gas drilling, are developing ways to eliminate the need for chemicals that may taint water supplies near wells. At risk is hydraulic fracturing, or fracking, a process that unlocked gas deposits in shale formations and drove gains in U.S. production of the fuel. Proposed regulations might slow ...


    By Biolargo, Inc.

  • The latest ground Gas monitoring innovations

    The latest Ground Gas monitoring innovations   The traditional methodology for ground gas monitoring has been ‘spot monitoring’ – taking event readings at various set times to predict the sub surface gas regime on both on Brownfield and Landfill sites.     This methodology is in general current practice under both the EU Landfill Directive ...


    By Shawcity Limited

  • On the definition of the natural capital of soils: A framework for description, evaluation, and monitoring

    The unknown consequences and potential impacts of mankind's ability to destroy, alter, or manipulate ecosystems on a vast scale drives our need to better understand the earth system. A fundamental challenge for soil science in the 21st century is to understand the role of soil processes in relation to the function of the earth system. The rationale for developing a definition of soil natural ...

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