Vehicle Exhaust Articles

  • A three–dimensional CFD approach for prediction of noise reduction of mufflers without mean flow

    A CFD approach, in which the full equations are solved in the time domain, is proposed to calculate noise reduction of a cleaner and a complex exhaust muffler without mean flow. First, two modelling approaches are used to deal with the outlet boundary and to calculate noise reduction of the cleaner without a filter element. The calculated results agree quite well with measurements. Further, the ...


    By Inderscience Publishers

  • Removal of vehicle exhaust fumes at fire stations

    The challenge The fire brigade of Kassel (Germany) was looking for three new vehicle exhaust extraction systems. Systems that would remove exhaust fumes very effectively, protecting the fire fighters from hazardous diesel exhaust fumes. Other fire stations within the Kassel region were already provided with extraction systems. The fire brigade of Kassel choose for a fully ...


    By Plymovent Group BV

  • Magnetic Grabber ensures effective exhaust removal

    The challenge The Marshfield Fire & Rescue Department has been using a number of SBT-Pneumatic systems of Plymovent since 2004. The SBT-Pneumatic systems have been removing vehicle exhaust gasses from the emergency vehicles - such as fire trucks and ambulances - inside the service station. The Magnetic Grabber® was installed ...


    By Plymovent Group BV

  • Numerical simulation of turbulent dispersion on a two-way facing traffic road

    A Large Eddy Simulation (LES) model was developed to investigate vehicle-induced turbulence and its effect on turbulent dispersion. The instantaneous behaviour of vehicle exhausts and the time-space averaged distributions of flow and concentration statistics on the roadway were estimated. The patterns of mean flow are significantly different between the one-way and the two-way traffic cases. In ...


    By Inderscience Publishers

  • Electrochemical Exhaust Gas Purification - SAE technical paper series

    This text is divided into Iwo parts; the first part gives a short recapitulation 01 the development status 01 the eiectrochemical reactor lor soot removal, while the second part gives a description 01 activities on electrochemical NOx reduction. The Electrochemical Reactor lor filtration and continuous combustion 01 soot lrom diesel exhaust gas has been described earlier [1, 2]. The reactor size ...


    By Dinex A/S

  • Battle Creek Air National Guard uses exhaust removal system

    Monoxivent provided XL-Series Hose Reels to capture diesel exhaust fumes from military vehicles at Battle Creek Air National Guard. The reels featured 50’ of exhausting hose in 12” and 14” diameters. The drums were 36” diameter by 7’ wide. The reels were chain driven and explosion proof. A stainless steel tapered cone adapter with spring clamp and dual handles also ...


    By Monoxivent

  • Environmental exposure to platinum group elements released by automotive catalytic converters: the risk for children

    The increasing use of Platinum Group Elements (PGEs) in vehicle exhaust catalysts causes their anthropogenic emission and spread all over the environment. The PGEs contamination initially occurs in airborne particulate matter, roadside dust, soil, sludge and water, and afterwards results in bioaccumulation in living organisms through diverse pathways. Several studies have reported enhanced PGE ...


    By Inderscience Publishers

  • An experimental investigation of the sound level produced by bulldozers with various maintenance schedules

    This study was made to understand and evaluate the effect of maintenance on noise production from bulldozers through experimental measurements of sound levels in a large open cast mine. Assessment of sound pressure levels at each periodic maintenance interval revealed that maximum sound level reduction was achieved at 1000 h maintenance schedule. For other periodic maintenance intervals, ...


    By Inderscience Publishers

  • Application of photocatalytic process for removal of methyl tert-butyl ether from highly contaminated water

    The addition of methyl tert-butyl ether (MTBE) to gasoline as an additive to replace tetraethyl lead has brought about a significant improvement in air quality (Zang and Farnood, 2005a). MTBE raises the oxygen content of gasoline thus helps reduce harmful agent of CO, NOx and ydrocarbon emissions from vehicle exhausts (Jacobs et al., 2001; Zang and Farnood, 2005b; Guillard et al., 2003). About 20 ...


    By University of Tehran

  • Analysis of Motor Vehicle Exhaust Emissions

    A standard Hiden HPR-20 was used for the detection of various gaseous emissions from a motor vehicle. The mass spectrum was complex due to the mixture of air, hydrocarbons and other combustion products. Analysis of this type is important to detect levels of toxic or hazardous species. Such levels are often strictly controlled by local government legislation thereby forming an important target for ...


    By Hiden Analytical

  • 3D stream and vortexes in the urban canopy layer and transport of motor vehicles exhaust gas

    Wind-tunnel experiments were conducted to investigate the transport of motor vehicle exhaust gas in the vicinity of a street. The stream and the vertical and horizontal vortexes in 2D and 3D street canyons were visualised using smoke. They were recorded by video camera and the transport of the exhaust gas by vortexes was then investigated. The vertical vortex plays a significant role in the ...


    By Inderscience Publishers

  • Removal of Lead from Gasoline

    On 12th March 1997, the European Commission adopted a proposal from the Environment Commissioner Ritt Bjerregaard on a European Union strategy to combat acidification. The strategy will, by 2010, reduce significantly the extent of the areas in the European Union where the tolerance of sensitive ecosystems to acidity is exceeded. Main elements of the strategy include establishment of national ...


    By The World Bank

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