Gas Sensors Articles

  • Gas Dilution With The Equal Capillaries Technique

    The advantages of the equal capillaries technique are surprising and leads to reach accuracy values of one order of magnitude higher than all the other dynamic dilution techniques. This comparison will be supported by analyzing the accuracy available with two different techniques. Nozzles (sonic or non-sonic) technique With this technique, a series of different size nozzles is used ...


    By Be.T.A. Strumentazione Srl

  • Field Performance Testing for Pipeline Pumps

    Significant energy savings can be achieved by optimizing pump operating efficiency. Measuring the exact pump performance with crude oil under realistic conditions in the field is the first step towards improving the pump efficiency in the future. About 20 billion barrels of crude oil were transported through pipelines in 2015. Around the world, there are over one million kilometers of ...


    By Sulzer

  • District heating (dh) pipeline owned by dutch utility poses unique inspection challenge

    Would you take on a new pipeline inspection challenge, even if you knew it would land you in hot water? Recently Pure Technologies (Pure) was able to chalk up success by adding one more type of pipeline to its inspection resumé. In this instance it was a district heating pipeline owned and operated by Eneco, one ...


    By Pure Technologies

  • Chlorine Safety and Prevention: How to Protect Yourself from Chlorine Leaks

    While chlorine gas is widely used in swimming pools, water treatment facilities, cleaning products, pharmaceutical products, and in many other industries, the gas is highly toxic when handled improperly. Training your workers on how to safely use chlorine is one part of health and safety best practices; monitoring your workplace for chlorine leaks is another. Learn about the hidden dangers in ...

  • Typical Sensor Location Considerations

    The sensor mounting location within a space may be dependent on many variables. There are no specific formulas since each application will have it’s own determining factors and priorities. These include, but are not limited to: source of gas: Is the source a combustion exhaust from a vehicle or furnace or a vapour from a tank spill, pipe leak, or faulty valve? density of ...


    By Arjay Engineering Ltd.

  • Investment in resource innovation needed for a key tech ecosystem

    We are living in a time of major transitions, and we are at the beginning of a new innovation supercycle. With more than 9,000 technology companies currently calling British Columbia home, there’s no shortage of support and enthusiasm for our burgeoning hub for startup ventures. But while we pride ourselves on cultivating new businesses at the startup level, we are neglecting to provide ...


    By GLOBE Foundation

  • How the uranium enrichment SC

    Part of a presentation and case study on the concept of the Electro Chemical Plant (ECP), Zelenogorsk, Krasnoyarsk territory for environmental monitoring and emergency response in exchange with the local, regional and central authorities, which serves as a role model for similar applications. Based on the concept the plant won the trophy as the "Best Fuel Company Enterprise for Civil Protection" ...


    By Saphymo

  • From 370km above the earth to 11000m under the sea

    It’s a bold strapline – but what does it mean? Have we opened an atmosphere research facility in outer space? Organised an aquatic Charity Day in the Mariana Trench? Well, if you didn’t know anything about Analox you’d be forgiven for wondering. After all, three-hundred and seventy kilometres above the earth is a long way from Stokesley. And eleven thousand metres under ...


    By Analox Sensor Technology

  • Case study - Geotech’s portable and fixed biogas monitors give worldwide reliability

    Used in varied biogas applications in over 60 countries worldwide, these three examples from the Netherlands, Thailand and Czech Republic show how reliability, accuracy and simplicity of use are critical for Geotech’s anaerobic digestion (AD) customers’ business operations. Leading product quality is backed up by full after-sales care, through local support centres and full technical ...


    By Geotech

  • Doped nano–phase tin oxide thin films for selective gas sensing

    The paper deals with the development of ethanol gas sensing films of tin oxide nano–particles which are insensitive to saturated aliphatic hydrocarbons, such as gasoline vapours. Stannous alkoxide (particularly iso–propoxide) and tin 2–ethyl hexanoate in solution have been used for fabrication of tin oxide films on alumina substrates with two pre–fabricated gold electrodes. For achieving ...


    By Inderscience Publishers

  • Hydrogen annealing ovens case study

    Application Moisture is measured in hydrogen annealing ovens. Problem Hydrogen gas is used in annealing furnaces manufacturing stainless steel and other metal parts. High-moisture concentrations in the hydrogen will oxidize the metal, resulting in an unusable product with a surface finish that is too dark. Equipment Any ...

  • The Other Side of Zirconium Oxide case study

    Regular Fuel Efficiency Applications Separate Oxygen and Combustibles Sensors In standard flue gas applications for Thermox analyzers, the user generally tries to extract the maximum energy from the fuel and transfers as much of that energy as possible to the process. These applications require the process to be operated as efficiently as possible by keeping both oxygen (excess air) and ...

  • System of systems analytic hierarchy and stochastic optimisation design

    A formulated methodology of developing the system of systems analytical hierarchy and optimisation flow order is presented. The design problem is modelled as a multi-level hierarchical optimisation problem. The multi-levels such as, super system level, system level and subsystem level are defined. Based on the idea of system of systems, each system performance criteria can be decomposed into ...


    By Inderscience Publishers

  • Idex Environnement’s Biogas plant at Amiens - Case Study

    The Anaerobic Digestion (AD) plant in Amiens is operated by Idex Environment. The biogas is derived from the municipal solid waste (MSW) originating from the local area. Clarke Energy has delivered a full turnkey installation for this site, creating renewable energy. The engines supplied for this project are two JGMC ...


    By Clarke Energy

  • Ultra-fast growth of the monocrystalline zinc oxide nanorods from the aqueous solution

    A new inexpensive method of the ultra-fast growth of ZnO nanorods from the aqueous solution is described. This environment friendly and fully reproducible method allows growth of nanorods in about 1–3 min time on various substrates, without any catalyst or complexing agent. The substrates need to be coated with a layer of gold droplets, which nucleate the growth. Growth temperature does not ...


    By Inderscience Publishers

  • Biogas in Asia

    The development of biogas production and monitoring has had many twists and turns, from its early days in Germany to the heady days of support through the Clean Development Mechanism (CDM).   The fall in the price of carbon credits, which rewarded reduction in emissions of methane (CH4) - a potent greenhouse gas - and use of methane from waste as renewable energy, has hit Asia ...


    By Geotech

  • Why instrument hire makes occupational safety sense

    Background Decisions concerning the acquisition of occupational safety monitoring instrumentation are often made by operational staff that may not have visibility of the full financial implications of their choices. The following article will examine the factors affecting these decisions and explain why a strategic decision to hire instrumentation can deliver substantial and wide-ranging ...


    By Ashtead Technology Ltd

  • Application of nanocrystalline metal oxide gas sensors for air quality monitoring

    Increasing concern regarding health effects caused by air pollution, together with the limited spatial resolution achievable with conventional monitoring stations, have driven efforts to develop inexpensive metal oxide gas sensors for air quality measurements. The sensing mechanism is dependent on physicochemical reactions between adsorbed gas molecules and oxygen species on the oxide surface, ...


    By Inderscience Publishers

  • Building a resilient system

    Africa is the second largest continent in the world, with the majority of its people surviving every day with little or no access to electricity – 50% of the 1.2bn people lacking access to electricity globally are in Africa, earning less than $2/d and living in remote locations where conventional grid extension makes little economic sense. Tackling energy poverty is the key to ensuring ...


    By Energy Institute (EI)

  • Hydrogen ion sensing characteristics of IGZO/Si electrode in EGFET

    In–Ga–Zn–O (IGZO) was widely applied in the substrate of TFT to replace α–Si in recent years. In this study, IGZO layer with thickness of 70 nm is firstly proposed as a pH–sensing membrane directly deposited on P–type Si substrate acting as an extended gate of conventional extended–gate field–effect transistor (EGFET). Post–deposition rapid thermal anneal (RTA) was performed to improve pH sensing ...


    By Inderscience Publishers

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