Noise Control Articles

  • Regenerative Thermal Oxidizer Installation #1369 - Case Study

    Acoustical Insulation Manufacturer in Holliston, MA An Acoustical Insulation Manufacturer adds pollution control with the help of Alliance Corporation. Application: Coating – Holliston, MA Project: A 6,000 SCFM KRONUS™ Regenerative Thermal Oxidizer. Installed by ...


    By Alliance Corporation

  • When Sound Becomes Noise

    Music to the ears of some can equally be perceived as unwanted, irritating noise to others – as illustrated by a recent news article about a Sydney pub forced to cancel live music on Sunday afternoons after five trouble-free years ...


    By Innova Global Limited.

  • Bespoke noise protection: AERZEN relies on the advantages of reactive silencers

    With reactive silencers, AERZEN reduces the noise emissions on the discharge side of its screw compressors, positive displacement blowers, and rotary lobe compressors. The innovative concept of these reactive silencers is superior to classic dissipative silencers in many respects. The sound waves developing on the discharge side of a Delta Screw compressor made by AERZEN can reach 170 to 190 dB. ...

  • Seeking Clarity in Noise

    Environmental noise regulation can be frustrating. The noise limits, applicable measurement metrics, assessment methods and level of enforcement vary a lot by region and jurisdiction and rarely do they all align. Historically, noise emitters and sensitive receivers could afford to use distance to separate themselves. Consequently, environmental noise laws were first developed in regions with high ...


    By Innova Global Limited.

  • Cloud computing for noise monitoring

    ABSTRACT Cloud computing is the use of computing resources that are delivered as a service over the Internet. This means that software, hardware and network resources are centrally managed. The ubiquitous availability of high-capacity networks and reduced cost of both client and server hardware have led to a tremendous growth in cloud computing. The concept gives a huge benefit for ...


    By Norsonic AS

  • Is a background noise survey worth doing? - Case Study

    As a plant owner or designer you will logically try to keep construction costs down wherever possible. So noise control features can easily be sidelined as an “optional extra” to be added later if the need arises. You might also be confident a new industrial plant will comply with all regulations on completion, but that doesn’t mean a future neighbour won’t complain about ...


    By Innova Global Limited.

  • Holcim Ste. Genevieve Cement Plant - Case Study

    Big and beautiful The new cement manufacturing facility of Holcim (US) at Ste. Genevieve with a production capacity of four million tonnes per year went on stream mid-2009 and is one of the most environmentally-efficient cement plants in the Holcim Group. It is 40 percent more energy-efficient than the Holcim (US) plants that were closed in 2009 and emits 10 to 25 percent less ...

  • Vattenfall`s Cogeneration Power Plant Reuter West - Case Study

    The cogeneration power plant “Reuter West” was erected as a base load power plant in the vicinity of the existing “Reuter” plant. The two hard coal fired 300 MW units D and E were commissioned in 1987 and 1989. Today the cogeneration units supplying electricity and thermal energy are operated by Vattenfall Europe GmbH. The heart of each power plant is the boiler where the ...

  • Bell & Gossett introduces new hydronic pump selection criteria to maximize system efficiency

    Energy and maintenance expenses account for approximately 75 percent of the life-cycle costs of a centrifugal pump. With a growing emphasis on reducing energy consumption driven by government regulation and businesses seeking operational and financial efficiencies, HVAC system designers are seeking system solutions that maximize efficiencies while reducing costs. To address this demand and the ...

  • NoiseNews Round-Up: Noisiest Dogs, Pokémon Go, Cinema Snacks & Opera

    Yes, it’s me – The Noise Doctor. I’m back with the NoiseNews Round-Up. I’ll be bringing you some of the latest and quirkiest noise-related news stories from around the world. In this edition, I’m looking at the top 10 noisiest dogs, Pokémon Go, cinema snacks and opera. Let’s get started. Ssssh! – Silent Snacks are Heading to the Big Screen at ...


    By Cirrus Research plc

  • What is an anechoic chamber and how quiet can it be?

    One of the things that we often talk about when we’re running our CPTC (Cirrus Product Training Courses) is how our hearing works and we often end up talking about how, if there’s no ambient sound, we can feel uncomfortable and can become disoriented very quickly. One of the best (or maybe the worst) places to experience this is in ...


    By Cirrus Research plc

  • Optimus and Invictus are the Classic Combination - Case Study

    Imagine a perfect summer’s evening with a 40-strong classical orchestra playing to an appreciative audience in a leafy green park. So far, so very English. Add in the fact the Park is in the heart of Lancaster city surrounded by thousands of homes and the orchestra is playing sets of the Hacienda’s classic 90s house music hits and you can understand the headache facing Acoustic ...


    By Cirrus Research plc

  • Optimus and doseBadge Adapt to New Challenge - Case Study

    Established in 1934, Lindapter International is the world’s innovator of steelwork clamping systems, eliminating the requirement to drill or weld steel.  The company designs and manufactures specialist products for connecting structural steel sections together and  has more than 85 years’ experience in its field. The company’s success is the result of its dedication ...


    By Cirrus Research plc

  • Romax Consultancy Services Provide Reliability Solutions for European Rail OEM - Case Study

    CAF MiiRA is a leading company in the design, manufacture and maintenance of railway wheelsets and their components. Currently, CAF MiiRA is the only manufacturer of wheels and axles capable of delivering the wheelset with a complete design: from the wheels, axles, axle boxes, and gearboxes. Mikel Oyarbide, Gearboxes Projects Engineer at CAF MiiRA, explains: “CAF offers comprehensive global ...


    By Romax Technology Limited

  • Shannon Creek Dam Switches to Custom Anti-Cav Control Valve Solution

    Shannon Creek Dam and pump station is the core feature of the Regional Water Supply scheme, a joint venture of the Coffs Harbour City Council and the Clarence Valley Council. With an inundation area is 37 square Km, the reservoir provides 30,000 mega litres of supplementary water supply to The Clarence Valley and Coffs Harbour, located on the Mid North Coast of NSW, Australia. This award-winning ...


    By Singer Valve Inc.

  • Case study - Filming sound leakages in highly reflective office environment

    Problem A newly built office complex is designed with glass facades between the offices and the hallway. The glass facades include a glass door. Although the glass structures themselves have a sufficient sound reduction value, the sound insulation between office and hallway was measured at 19 dB, which was far below the sound insulation criteria for offices given in the regulations. It ...


    By Norsonic AS

  • Power case study - North Incinerator - Environmental

    Subject Montgomery County's North Incinerator plant, in Dayton, Ohio Situation To meet EPA air pollution control standards for sulfur dioxide emissions, finely powdered limestone needed to be injected into the three incineration units at all times. The operation required approximately 18,000 pounds of powdered limestone a day, and needed to be ...


    By HammerTek Corporation

  • Ask The Noise Doctor: How Long will the Batteries Last in My Optimus Sound Level Meter?

    Do you have questions about your noise measurement instruments that Google or Wikipedia just can’t seem to answer? Ask The Noise Doctor. I’m here to answer your most frequently asked questions. Whether it’s product or application based, I’m up to the challenge. In this article I’ll be covering battery life in the Optimus Sound Level Meter range. A Commonly Asked ...


    By Cirrus Research plc

  • 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

  • Rockingham Landfill Gas Power Plant - Case Study

    The Rockingham landfill gas power station is located in Rockingham, Western Australia and is operated by AGL. After over a decade of operation using the original Jenbacher J320 engines by GE, Clarke Energy will deliver a fourth J320, bringing the total installed ...


    By Clarke Energy

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