Air Velocity Articles

  • Power Case Study - North Incinerator

    North Incinerator Finds Solution to Excessive Sweep Elbow Wear At Montgomery County's North Incinerator plant, there was a problem several years ago. The Dayton, OH, area trash-to-energy plant was experiencing repeated shutdowns due to sweep elbow failure in its dense phase pneumatic conveying system, a component of the lime injection system in operation there. In order to ...


    By HammerTek Corporation

  • Case study - Wastewater - Upper Occoquan water reclamation plant

    The Smart Elbow Stops Lime Spills and Prevents Dust Cloud Exposure Robert Forgione, P.E. and his team at the Upper Occoquan Water Reclamation Plant in Centreville, Virginia were wading through yet another dust cloud to cleanup yet another pile of dry pebble lime and dust that had leaked from a failed elbow in the conveying line. While the hole measured a mere 1/2-inch across, it was ...


    By HammerTek Corporation

  • 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

  • Power Case Study - PECO Energy

    Smart Elbow® prevents magnesium oxide leakage at coal-fired generating plant As featured on Today's Environment on the Discovery Channel, and in the September '95 issue of Powder & Bulk Engineering. Subject PECO Energy Company's Eddystone Generating Plant, Philadelphia, PA area Situation In order to ...


    By HammerTek Corporation

  • Monitoring Air/Fuel Mixtures in Glass and Glass Fiber Manufacturing case study

    Measurement of Premix Gas. To produce the desired flame in a glass forehearth or when making fiberglass (glass fiber) insulation, an air/fuel pre-mixer is used. The pre-mixer combines compressed natural gas or propane with air and this mixture is then piped to the process burners At the burner, a fuelrich or fuel-lean flame is produced depending on the air/ fuel ratio selected. In many ...

  • Experimental study of the impacts of external disturbances on N2O emission from water to air

    To obtain a comprehensive understanding of nitrous oxide (N2O) emission from water to air, the impacts of external disturbances including wind, stirring and aeration on N2O emissions were investigated by continuously monitoring N2O concentration variations in water. The volumetric mass transfer coefficient of N2O from water to air ...


    By IWA Publishing

  • Air Flow Meters to Measure Air Velocity and Air Pressure

    Air flow meters are used to measure air velocity and air pressure. Depending on the type of application, air flow meters are made as hot-wire air flow meters or pocket weather flow meters, both of which can measure air velocity and air pressure. The results of measuring the air velocity can be stored in the memory of the device depending on the model. There are even data loggers for air velocity ...


    By PCE Instruments UK Ltd

  • 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 ...

  • Analysis of an anomalous case of high air pollution concentration in Turin after a foehn event

    A case of unusually high concentrations of some urban air pollutants (CO, NO, SO2) in Turin (Northwestern Italy) is presented. This episode occurred during the late afternoon of 7 November 1995. This day was characterised by a strong northern foehn event in the morning, which followed the passage of a cold front. The analysis has been carried out by means of data derived from the urban and ...


    By Inderscience Publishers

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