vehicle exhaust Articles

  • 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 Ltd.

  • On-Vehicle Exhaust Gas Cooling in a Diesel

    ABSTRACT A diesel emissions control system built and tested on an industrial forklift truck is described. The system utilizes a pleated media type diesel soot filter. The temperature limit of the filter material is well below the temperature of the exhaust gas. Therefore, cooling of the exhaust gas is ...


    By DCL International Inc.

  • Time-resolved ammonia measurement in vehicle exhaust

    The objective of this study was to identify the influence of sampling and analytical approach on the quality of NH3 emission data of a gasoline-fuelled three-way catalyst vehicle. NH3 concentration measurements have been performed in the tailpipe and in the diluted exhaust after a constant volume sampling (CVS) system during five different test cycles. Chemical ionisation mass spectrometry ...


    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

  • Exhaust Purifier for Rock Drill

    Description Gardner Denver MK45H rock drill. Challenge A universal exhaust purifier was required that could easily be retrofitted into the vehicle exhaust pipe. Solution DCL supplied an exhaust purifier with connection cones to match the vehicle exhaust tube diameter. The unit was connected to the exhaust tube with standard muffler u-clamps. Quick-release clamps on ...


    By DCL International Inc.

  • Effects of trees on the dilution of vehicle exhaust emissions in urban street canyons

    In order to investigate the natural ventilation and air quality of urban street canyons with trees, boundary layer wind tunnel studies at a small-scale model have been performed. Concentrations in street canyons with a tracer gas emitting line source at the ground level and one row of trees arranged along the canyon centre have been measured for several equidistant tree spacings. In the case of ...


    By Inderscience Publishers

  • Real-world vehicle emissions as measured by in situ analysis of exhaust plumes

    Abstract We conducted a 60-day roadside measurement campaign on a busy street in Münster, Germany, during summer 2016. We used gas and particle concentration measurements with high temporal resolution (10 Hz) to quantify both the emission ratios of nitrogen oxides per carbon dioxide (NOx/CO2) for over 70,000 individual exhaust plumes as well as the emission ratios ...


    By ECO PHYSICS AG

  • Study of recyclable energy of exhaust and structure design of electric generator on vehicles

    In the present study, the energy transfer process of the engine exhaust was analysed based on the concept of exergy and exergy analysis of the second law of the thermodynamics, the proportion of the wasted exergy and the major exergy loss position were identified, which provided a theoretical basis for taking new measures to reduce the unnecessary loss of the available energy during the energy ...


    By Inderscience Publishers

  • The effect of aircraft engine exhaust gases on the environment

    The sources of air pollution are classified as point, line and surface sources. Motor vehicle pollution is modelled as a line source. Hitherto, studies of air pollution have emphasised surface pollution caused by fossil fuel burning for the purposes of obtaining energy and heating, and motor vehicle pollution studies are usually concentrated on land vehicles. In this study, the effect of aircraft ...


    By Inderscience Publishers

  • 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

  • Trends of exhaust emissions from gasoline motor vehicles in the metropolitan area of Mexico city

    Light duty gasoline vehicles account for most of CO, hydrocarbons and NOx emissions to the urban environment in the metropolitan area of Mexico City. In order to ameliorate air pollution, several control measures have been imposed in the last decade, such as: up-grade of gasoline's quality, stringent environmental standards, and catalytic converters. On the other hand and from the beginning ...


    By Inderscience Publishers

  • 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

  • Cleaner bus traffic by minimizing exhaust gases

    Customer: Kabus Challenge: Bus manufacturer Kabus wanted to reduce the discharge of exhaust gases and the consumption of fuel of their vehicles. Solution: A hybrid bus which combines an electric motor and a combustion engine. Key benefits: 30% reduction in fuel consumption, 30% reduction in exhaust gases. Due to the lighter ...

  • VOC composition and ozone-forming potential of the exhaust gas of in-use motorcycles

    The emission profile of volatile organic compounds (VOC) and the ozone-forming potential (OP) of the exhaust gas of six in-use motorcycles (four 4-stroke- and two 2-stroke-engines) were determined. The motorcycles were tested on a chassis dynamometer in a real-world driving cycle. The analysis involved the C2–C12-hydrocarbons as well as the aldehydes and ketones. Additionally, the regulated THC ...


    By Inderscience Publishers

  • 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

  • Diesel Particulate Filter Testing with Vehicle Data Acquisition

    Delphin Expert Logger Vehicle Data Acquisition and Control System CAS DataLoggers recently provided the vehicle data acquisition solution for Twin-Tec, a German developer and manufacturer of environmentally friendly products and technologies for reducing exhaust emissions, including a wide range of diesel particulate ...


    By CAS DataLoggers

  • Pennsylvania air national guard uses exhaust removal system

    Monoxivent’s 9000-MTR Hose Reel was used to remove toxic exhaust fumes from military vehicles at the Pennsylvania Air National Guard. Monoxivent's motor-operated hose reels are the premier solution to exhaust extraction. They provide the answer for customers who have obstructions, which prohibit the use of other types of overhead-exhaust systems.  At the Air National Guard facility, ...


    By Monoxivent

  • Emissions measurement - Discover a new way of particulate emissions measurement for light-duty vehicles

    New article from Sierra in Automotive Testing International Magazine entitled "Emissions Measuremen" explores how combining partial flow sampling and direct exhaust flow measurement provides an ideal solution for particulate emissions measurement from light-duty vehicles. With the phase-in of LEV-3 this year targeting a 3mg/mile PM limit, followed by a 1mg/ mile PM limit phasing-in by 2025, ...


    By Sierra Instruments, Inc.

  • Modelling the dispersion of motor vehicle exhaust gases, including building effects, and its application to the calculation of NOx concentration in Osaka City

    This paper presents a model for dispersion of NOx from motor vehicles and stationary sources in urban areas. Annual average NOx concentrations from these sources were calculated using the Gaussian plume model. The calculated concentrations were compared with the observed concentrations at 67 air monitoring stations located in Osaka Plain. The effect of mechanical turbulence resulting from ...


    By Inderscience Publishers

  • Determination of in Vitro Biotoxicity in Exhaust Particulate Matter from Heavy-Duty Diesel Engine

    Diesel engines have found wide application in heavy duty vehicles and equipment for many years and in recent years have been used to an increasing extent in light duty vehicles and cars. This latter usage is protected to increase substantially in the future, both in China and ...


    By Springer

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