engine silencer Articles

  • Catalytic Silencers for Gas Compressor Site

    Description Gas compressor stations near Bakersfield, California. Compressor packages running with Waukesha 7042GSI natural gas fuel, rich burn engines. Challenge Universal Compression required meeting very stringent San Joaquin Valley Air Quality Management District standards for NOx, CO and volatile organic compounds. Solution DCL supplied three catalytic silencers, ...


    By DCL International Inc.

  • On the right track

    High-speed train manufacturer, CAF, rely on world-class beamforming technology to reduce the noise generated by their trains – helping to make high-speed trains a more viable option for travellers and operators alike. Because of its relatively low levels of CO2 emissions, train travel is considered one of the ...

  • Ros Roca brings silence to the refuse industry

    Increasing demands for higher productivity, lower noise and reduced emissions call for totally new approaches when it comes to designing Refuse Trucks. Manufacturers and fleet operators are already under extreme pressure to reduce fuel consumption and CO2 emission. Partly driven by new legislation including CO2 penalty, partly driven by increasing fuel prices and partly driven by the constantly ...


    By Ros Roca Environment

  • Case No. 501: New QXC Silencer/Converter Installed on Waukesha H24GSID 375 KW Natural Gas Engines Achieves 2007 California NOx Regs

    Generating power with natural gas engines in large commercial buildings, while controlling emissions and noise from the engines requires a unique catalytic solution. Johnson Matthey’s new QXC model 3-Way converter silencer was chosen for the task. This design contains a unique catalyst element sealing system ...

  • Record breaking formula one fan noise control

    Problem: an extract system fan drone creating a potential environmental noise problem. Solution: aerodynamic engineering instead of silencers – in keeping with the Red Bull Technology ethos. The conventional technique used to reduce fan tones like this is a silencer – a large, palliative silencer that doesn’t tackle the source of the ...

  • Low cost fan noise attenuation in the power industry

    An article about the application of our Quiet Fan technology (QFt) to reduce the noise from large fans in the power industry has been published in Power Engineering International. The journalist suggests that the widespread adoption of the technology in this industry could reduce both capital and running costs very substantially ...

  • Bernaraby Landfill Power Plant - Case Study

    Clarke Energy has been contracted to supply and deliver one of GE's Jenbacher 1MWe containerised gas engine to LGI (Landfill Gas Industries Pty. Ltd.) for their new landfill gas power station project at Bernaraby, Queensland, Australia which will be operational in 2016. Generation Capacity The high efficiency ...


    By Clarke Energy

  • Selected Literature from Johnson Matthey`s Environmental Catalysts and Technologies Division

    SSEC Literature: High Temperature SCR Zeolite Catalyst for NOx Control / SCR Catalyst for NOx Control Stationary Lean Burn Engines / SCR Systems for NOx Control Stationary Lean Burn Engines / Gas Turbine Oxidation Catalyst for the control of CO and VOCs / Oxidation Catalysts for the Control of CO, VOC, HC / BanditoTM - Modular Catalytic Converter for the Control of NOx, CO and THC / Band-ItTM - ...

  • Noise, sound, decibels, hearing

    A decibel–a measure of sound. Like all short answers, this one leaves out a lot. When we hear a sound, its because our brain has received a nerve impulse from the nerve cells in the Inner Ear, which consist of a bone, called the Cochlea because it resembles a snail shell. These cells have long “hairs” that project into fluid inside the cochlea. There is a hole in the cochlea ...

  • NASA acts to reduce crawler transporter noise

    The United Space Alliance sought outsideassistance to evaluate and develop noise controlmeasures for NASA’s two CTs at KSC aspart of a modernisation and upgrading program.NASA selected Noise Solutions Inc. (ageneral acoustical contractor) and their subcontractorFaszer Farquharson & Associates ofCalgary, Canada to engage in this project. Thefirst phase of the sound study ...

  • GKN aerospace success with portable impedance meter

    The GKN site in Cowes, Isle of Wight, UK, has long experience in the design and manufacture of passive sound insulation systems for air-intakes and by-pass ducts of aircraft engine nacelles. Dr. Armando Vavalle, Technology Development Engineer from GKN reports here on impedance tests conducted with Brüel &Kjær’s Portable Impedance Meter Type 9737 for the development of such ...

  • From air conditioning to urban planning, defaults and standards create dysfunction by design

    How can we stop outdated assumptions from forcing us to waste? Personal heaters are a summer survival tool for many office workers chilled to the bone by hyperactive ventilation systems — an act of self-defense against an epidemic of overcooling that is wasting energy and confounding comfort in not only offices but also large shops, schools and other buildings. An audit ...


    By Ensia

  • Souderton looks at viability of investment in sludge dryer

    Despite the day's snowy weather, the Souderton Borough Council met for a brief session March 2 and discussed the newest option for the borough's sludge removal. The borough has been looking for a device to dewater the sludge produced by the in-town treatment facility for nearly two years. Removing the water would allow the borough to apply the sludge to land, which would save on hauling costs. ...


    By Therma-Flite Inc.

  • The Safety of Genetically Modified Foods Produced through Biotechnology

    Executive Summary The Society of Toxicology (SOT) is committed to protecting and enhancing human, animal, and environmental health through the sound application of the fundamental principles of the science of toxicology. It is with this goal in mind that the SOT defines here its current consensus position on the safety of foods produced through biotechnology ...


    By Oxford University Press

  • Innova`s race against time; the sonic mystery

    What began as a puzzling mystery in the semi-arid scrub-land of Colorado, ended as a race against time for the acoustic specialists of INNOVA (formerly ATCO Noise Management). The Olathe Compression Station, operated by Kinder Morgan’s TransColorado Gas Transmission, is located on a plateau in isolated, canyon-cut Colorado countryside, three km from the nearest ...


    By Innova Global Limited.

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