vehicle emissions analysis Articles
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Modelling and simulation with experimental verification of hydrogen-diesel dual-fuel premixed combustion and emission analysis
This paper deals with an application of advanced simulation methods to the modelling of Duel-Fuelled engines (Hydrogen/Diesel) in which the premixed Hydrogen gas is ignited by the combustion flame initiated by a diesel spray. The model consists of a diesel auto-ignition model and a modified combustion model. The influence of main engine parameters i.e., injection advance, and various percentages ...
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Gas Analysers for Fuel Cell Research
Electrochemical fuel cells are envisaged as a potential successor technology to combustion engines in the automotive sector. Although studies have considered numerous gaseous elements as the fuel source for electrochemical stacks, hydrogen (H2) remains the primary element of interest in automotive engineering. Gas analysers have proven instrumental in demonstrating the advantages and drawbacks of ...
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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 for size-resolved ...
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Applying hourly measurements of meteorological data and aerosol soluble ions in Taipei Basin, Taiwan
This study applies observational data composed of hourly weather and aerosol to discuss the aerosol characteristics within different weather systems. Based on cluster analysis, spring weather in Taipei Basin 2004 was characterised as five weather systems: humid/low south wind speed, dry cold/high east wind speed, humid cold/east wind, dry cold/northeaster, and northwestern convection wind. Under ...
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Air pollution and the influence of sources on Paulinia (Brazil) and surroundings
The air quality in the industrial area and surroundings of the city of Paulinia (state of Sao Paulo, Brazil) has been investigated by analysing the concentration of air pollutants (SO2, PM10, NO, NO2, CO and ozone) and identifying the main sources of air pollution. A mobile pollutant monitoring unit was used to collect the data at five different sites from November 2000 to July 2002. Critical ...
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