vehicle emissions Articles

  • Vehicle Emissions – How to Catch Defeat Devices

    There are many vehicles that have a large impact on the environment in many places around the world. Today, pollutant emissions is a hot topic, both for legislators, the vehicle industry, and a concerned public. In the article “A Step-by-Step Methodology for Vehicle Testing to Catch Defeat Devices” by the International Council on Clean Transportation (ICCT) a methodology to catch ...


    By Opsis AB

  • Real-World Vehicle Emissions: A Summary of the 14th Coordinating Research Council On-Road Vehicle Emissions Workshop

    The Coordinating Research Council held its 14th Vehicle Emissions Workshop in March 2004, where results of the most recent on-road vehicle emissions research were presented. We summarize ongoing work from researchers who are engaged in improving our understanding of the contribution of mobile sources to ambient air quality andemission inventories. Participants in the workshop discussed efforts to ...

  • Real-world vehicle emissions

    The Coordinating Research Council (CRC) convened its 18th On-Road Vehicle Emissions Workshop March 31–April 2, 2008, with 104 presentations describing the most recent mobile source-related emissions research. In this paper we summarize the presentations from researchers whose efforts are improving our understanding of the contribution of mobile sources to air quality. Participants in the workshop ...

  • Emission behaviour of modern heavy duty vehicles in real world driving

    Within a national and two international research projects, a vehicle emission model was developed, which calculates emissions in real world driving from the engine emission maps by simulating engine power and engine speed. Influences of transient load changes on the emission level are taken into consideration by special functions. Model parameters are gained from a common measurement protocol on ...


    By Inderscience Publishers

  • Canarina DISPER software · motor vehicle emissions · commands 17

    Export Picture.- With this command you will be able to export images and pictures (BMP files). These images will contain the background picture and the simulation results. Many programs, computer applications and word processors (AutoCad, 3d Studio, ArcView, MS Word,...) import BMP files. You will be able to load images generated by DISPER. Print.- The users’ printer drivers and ...

  • Canarina DISPER software · vehicle emissions control · commands 12

    7.1 Menu Bar Display the commands you use to build your simulation. When you choose one of the menus, the program displays a pull-down list of available commands. The program window has a basic tool bar under the Menu bar. The tool bar provides quick access to commonly used commands in the program. You click a button on the toolbar once to carry out the action represented by that button. For ...

  • Evaluating emission mitigation strategies for sustainable transportation system: a system dynamics approach

    The sustainable development of urban transportation system demands a trade–off between economic, social, demographic, geographic, and political concerns. To address these concerns there is a need of induction of viable transportation policies. In order to examine, the effect of these policies, a system dynamics modelling framework has been presented. A simulation model has been developed to ...


    By Inderscience Publishers

  • Research Note: Air pollution challenges and solutions for China's urban transportation development

    China has experienced dramatic urbanisation and motorisation in the past 20 years. The phenomenal rise in the vehicle population in major cities has resulted in increased air pollution, traffic congestion and other 'wicked problems'. The Chinese government at all levels has made significant effort to control motor vehicle emissions, but vehicle population growth far outpaces their efforts, ...


    By Inderscience Publishers

  • Static and dynamic instantaneous emission modelling

    Emission models can be categorised into three categories: average speed models; traffic situation models, used at macro-scale or meso-scale level (national, regional, city level); and instantaneous (modal) models, useful at micro-scale level (street, vehicle level). To improve the existing instantaneous emission models, some preconditions must be fulfilled: the emission signals should be measured ...


    By Inderscience Publishers

  • Global innovation vs. local regulation: introduction of automotive emission control in Sweden and Europe

    The increasing effects of pollution in larger cities in Europe in the 1960s spurred investigations into the sources of pollution and the means for its reduction. One important source of pollution was found to be the increasing fleet of passenger cars. In difference to a common description like "strict vehicle emission regulations were established in EU and EFTA countries in 1995", this paper ...


    By Inderscience Publishers

  • History of Air Pollution in the UK

    Concern about urban air quality is not new. Complaints were recorded in the 13th century when coal was first used in London. Since the middle of the 19th century, the atmosphere of the major British cities was regularly polluted by coal smoke in winter, giving rise to an infamous mixture of fog and smoke known as smog. Today the emphasis has shifted from the pollution problems caused by industry ...

  • Real-world and type-approval emission evolution of passenger cars

    The investigation of several passenger car generations with gasoline engines shows that the emissions depend very strongly on the driving cycle. Official type approval cycles allow just very inaccurate predications about their real-world emissions. The measured gasoline vehicles have up to factor 11 higher real-life emissions than in type approval cycles. However, a clear reduction of real-world ...


    By Inderscience Publishers

  • Towards an ecological culture for the automobile industry: a case study from China

    This paper explores the nature of the ecological culture for the auto industry and the protection of the environment using China as a case study example. From the study, a comparative analysis showed that 75% of state-owned auto enterprises met the Euro III emission standards, while 67% of non-state-owned auto enterprises reached the Euro IV emission standards. It was recommended that this gap ...


    By Inderscience Publishers

  • Real-World Vehicle Emissions: A Summary of the 15th Coordinating Research Council On-Road Vehicle Emissions Workshop

    ABSTRACT The Coordinating Research Council held its 15th workshop in April 2005, with nearly 90 presentations describing the most recent mobile source-related emissions research. In this paper, the authors summarize the presentations from researchers who are engaged in improving our understanding of the contribution of mobile sources to air quality. Participants in the workshop discussed ...

  • History of Air Pollution in the UK

    Introduction Concern about urban air quality is not new. Complaints were recorded in the 13th century when coal was first used in London. Since the middle of the 19th century, the atmosphere of the major British cities was regularly polluted by coal smoke in winter, giving rise to an infamous mixture of fog and smoke known as smog. Today the emphasis has shifted from the pollution problems ...

  • Mitigation of road transport carbon emissions in Argentina

    This study describes a model to calculate energy consumption and CO2 emissions into the atmosphere by the road transport sector in Argentina from 1960 to 2050. The model analyses different mitigation scenarios to determine effective options to produce a sensitive decrease in carbon emissions. The results of this study show that by reducing the use of private vehicles while increasing the use of ...


    By Inderscience Publishers

  • CO2 benefit from the increasing percentage of diesel passenger cars in Switzerland

    One efficient way to decrease CO2 emissions is to replace gasoline passenger cars by diesel cars. The paper examines the benefit of CO2 emissions in the case of an increased diesel penetration in Switzerland, according to several scenarios assuming different future passenger car registrations and fuel consumption. The results show that a significant CO2 benefit can be achieved if a diesel ...


    By Inderscience Publishers

  • Evaluation of diesel fleet emissions and control policies from plume chasing measurements of on-road vehicles

    Abstract Vehicle emissions are an important source of urban air pollution. Diesel fuelled vehicles, although constituting a relatively small fraction of fleet population in many cities, are significant contributors to the emission inventory due to their often long mileage for goods and public transport. Recent classification of diesel exhaust as carcinogenic by the World Health Organization ...


    By ECO Physics AG

  • California’s denied greenhouse gas waiver has ripple effect across nation

    The US Environmental Protection Agency (EPA) on Febuary 29 denied California’s waiver request for its greenhouse gas (GHG) program for new motor vehicles (California Greenhouse — Gas Waiver Request). That decision has broad national implications which include the chemical industry. Denial brings disappaintmentClean Air Act ((AA) Section 209(b) ptohibits states from adopting emissions control ...


    By Bergeson & Campbell, P.C.

  • A numerical study of mesoscale airflow and dispersion over coastal complex terrain

    A computational system composed of a three dimensional (3D) mesoscale model and a Lagrangian stochastic model is applied to forecast the boundary layer dynamics and Carbon Oxide (CO) air concentrations from motor vehicle emissions in the Rome urban area over the Lazio region of Italy. The model results show a general good agreement with observations at one location near Rome. The simulation ...


    By Inderscience Publishers

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