air duct Articles

  • Advanced thermal dispersion mass flowmeters

    Thermal dispersion (TD) mass flowmeters measure the mass flowrate of fluids (primarily gases) flowing through a closed conduit, such as a pipe. This article describes the operation and installation of TD mass flowmeters, and gives the reader information about what applications these meters are most suited for. Background The first general description of TD mass flowmeters is ...


    By Sierra Instruments, Inc.

  • Mist Collector - Case Study

    A major midwest metalworking facility uses 24 OM-1 Mist Collector units ducted to over 200 sources, including grinding, dressing, CNC machining, lathes and heat treating operations. The units are highly effective against coolant mists, lubricant mists, and more. OM-1’s ability to accommodate smoke gives it an advantage over centrifugal-type oil mist collectors, which are not ...

  • Wood waste case study - Pronto Joinery

    A joinery company in Norwich has replaced three wood waste heaters with brand new ones from Wood Waste Technology. Pronto Joinery provides both the general public and trade with wooden replacement windows and doors from its purpose built factory in Horsford. The company has used wood waste burners for many years, but wanted to replace its existing heaters with newer ones to benefit from enhanced ...


    By Wood Waste Technology Ltd

  • 6 Tips for Reducing NOx Emissions

    Many industrial processes utilize the combustion of natural gas, oil, or coal. However, the combustion of these fossil fuels produces nitrogen oxide or NOx, which contributes to smog and air pollution. Finding an effective and efficient solution for emissions can be frustrating and time consuming. In addition, federal regulations and energy standards can change, impacting your ...


    By CECO Environmental

  • 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 ...

  • SKILLS FOR USE OF CONSTRUCTION DUMP TRUCKS IN ALPINE PLATEAU AREA II

    3. Installing a turbocharger in the dump truck radiator Because the fuel output of high-pressure oil pump of diesel engine has been adjusted, the power of the pump has been reduced. Therefore, a turbocharger with a slightly stronger working ability should be selected to match the diesel engine. The Weichai WD615.50 diesel engine on ND3250B44-6*4 dump truck is equipped with HX50 Hallset ...

  • Wood waste case study - Zero 1 Exhibitions

    A joinery company in Norwich has replaced three wood waste heaters with brand new ones from Wood Waste Technology. Pronto Joinery provides both the general public and trade with wooden replacement windows and doors from its purpose built factory in Horsford. The company has used wood waste burners for many years, but wanted to replace its existing heaters with newer ones to benefit from enhanced ...


    By Wood Waste Technology Ltd

  • How a HEPA Filter Makes the Best Steam Cleaner Even Better

    When looking for the best steam cleaner for hospitals, hotels, and other commercial areas, it’s important to look for units that have vacuum extraction capabilities as well. Ordinary steam cleaning units can soften and dissolve a range of tough deposits and stains. But it’s up to the user to manually wipe up the slurry that is left behind. This can be a relatively easy task when ...


    By Daimer Industries Inc.

  • The Use of Particulate Emission Monitors to Support Arrestment Plant Operation and Upkeep

    The operation of filtration type arrestment plant can be optimised by the effective use of Particulate Emission Monitors (eg Filter Leak Monitors and Filter Performance Monitors). Particulate Emission Monitors are installed throughout the broad spectrum of industrial processes to satisfy regulations (IPPC, Part B Guidance Notes, WID and LCPD) for emission limit enforcement. In addition, where ...


    By ENVEA

  • How to Survive Sandstorm Season

    Asthma awareness is crucial when living in the GCC, especially when we live in a climate which has significant environmental triggers such as sandstorms. Several studies conducted in the Arabian Peninsula countries with a high rate of sandstorms, confirmed the increased prevalence of asthma in those countries. It was also reported that sandstorms frequently cause adverse health effects on the ...


    By Camfil Ltd

  • Luminant Oak Grove Power Station - Case Study

    Powering Texas Luminant, a subsidiary of Energy Future Holdings Corp. (EFH) -which owns competitive and regulated energy subsidiaries in Texas -is the largest electricity generator in Texas. Unit two of the Oak Grove Power plant near Franklin in Robertson County, TX went online in the middle of 2010. Fluor, the project’s EPC company, completed the plant in 35 months and used ...

  • Choosing a Cyclone Collector

    CYCLONE COLLECTORS Many of us have seen the large funnel shaped mass of metal sitting outside of a manufacturing facility, school or processing plant. These are cyclone dust collectors and they come in many shapes and sizes. If you are curious how they work or are wondering which one will be the right one for your process, read on. HOW THEY WORK Cyclone dust ...


    By ProVent, LLC

  • Improved HF monitoring in Primary Aluminium Smelters with Laser Gas Detectors

    Primary aluminium smelting generates large amounts of hydrogen fluoride gas (HF). Concerns for worker safety and ambient air quality require that HF be monitored at several locations in smelters. Historically, a variety of methods have been used for HF monitoring. Cassette samplers and wet chemistry techniques, coupled with complex and expensive ...


    By Boreal Laser Inc.

  • Case study - Rubber curing emissions

    Overview A rubber curing company was looking for a new, affordable abatement solution to treat their blue haze and low-level Volatile Organic Compounds (VOCs) in order to meet regulatory requirements. The large Electrostatic Precipitator (ESP) in use was extremely expensive to operate and maintain. The company began their search for a system that offered effective opacity control and ...

  • Summarizing the fundamentals of fugitive emission tracking

    Fugitive emission tracking for a number of key industries is now a focus for the United States and a number of other countries. When a hazardous leak occurs it is important to identify and gauge the amount and type of substance emitted. Officials will gain a better understanding of the challenge posed by greenhouse gases, as they affect global warming. When an unexpected leak of a hazardous ...


    By Accruent

  • Marketing Residential Air Duct Cleaning Services check list

    The best marketing you can do is delivering good quality work. Satisfied customers (who will refer you) are the least expensive and most effective marketing tool created. It is estimated that 60% or more of your business will come from referrals. Quality work/customer satisfaction is your first and most important marketing tool. Take before cleaning and after cleaning photos. This shows ...


    By Vac Systems

  • Drying plastic resin pellets in injection- Molding & Extrusion processes case study

    Application Moisture concentrations are measured in the dry purge air used to remove moisture from a hopper containing plastic resin pellets used in injection-molding and extrusion processes. Problem Moisture contaminates the plastic resin pellets causing several quality problems in the finished plastic products. Moisture causes clear ...


    By AMETEK Process Instruments

  • A new paradigm for thermal dispersion mass flowmeters

    Since the publication of the American Society of Mechanical Engineers (ASME) standard on thermal dispersion mass flowmeters in 2011, there have been major advancements in the technology. A review of that standard and a discussion of technology advancements provide the background to understanding groundbreaking innovations in sensor design. That, along with a comprehensive algorithm facilitated by ...


    By Sierra Instruments, Inc.

  • 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 ...

  • Case study - Bakery ethanol

    Overview A bread and bun bakery was faced with installing air pollution control equipment to control the volatile organic compounds (VOCs) emitted during their baking process. The local regulatory agency requires bakeries that generate over 25 tons of ethanol per year to reduce emissions by 95% by installing control devices on their ovens. The airstream that needed to be treated included ...

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