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Emission functions for heavy duty vehicles - update of the emission functions for heavy duty vehicles in the handbook emission factors for road traffic

About: The article was published on 2003-01-01 and is currently open access. It has received 18 citations till now.
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Journal ArticleDOI
TL;DR: In this article, the authors present an overview of past, present and future emissions from land transport, of their impacts on the atmospheric composition and air quality, on human health and climate change and on options for mitigation.

315 citations


Cites background from "Emission functions for heavy duty v..."

  • ...Emission factors of Borken et al. (2007) for OECD regions are slightly higher: It has recently been found that real world emissions from heavy-duty vehicles in Western Europe are by about 30% higher than the mandatory exhaust emission limit values (Hausberger et al., 2003)....

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  • ...(2007) for OECD regions are slightly higher: It has recently been found that real world emissions from heavy-duty vehicles in Western Europe are by about 30% higher than the mandatory exhaust emission limit values (Hausberger et al., 2003)....

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Journal ArticleDOI
TL;DR: In this article, a heavy-duty vehicle (HDV) emission model developed within the framework of three international projects was presented, where the model input data were gained from extensive measurement campaigns on HDV engines and HDV and a European data collection program.

89 citations

Journal ArticleDOI
TL;DR: This work shows that the novel technology combines both advantages of the established practices: organic and inorganic pollutants are either destroyed or removed from the P containing material, and the P returned to the soil exhibits high plant-availability and the novel method also has low emissions.

75 citations

Journal ArticleDOI
TL;DR: In this paper, the authors presented a comprehensive and validated inventory of road transport emissions worldwide, which covers eight exhaust compounds emitted by five vehicle categories and five fuel types each, and provided a conservative estimate of primary particulate matter emissions from diesel and gasoline vehicles.
Abstract: This paper presents a comprehensive and validated inventory of road transport emissions worldwide. The bottom-up calculation correlates within 2% and 10% with fuel sales data in Organisation for Economic Co-operation and Development (OECD) and non-OECD regions, respectively; this adds credibility to the results. The inventory covers eight exhaust compounds emitted by five vehicle categories and five fuel types each. For many non-OECD countries, road transport exhaust emissions have been calculated for the first time at this level of detail. Furthermore, this paper provides a conservative estimate of primary particulate matter emissions from diesel and gasoline vehicles. The Group of Seven countries (Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States) together with Brazil, China, India, Mexico, and Russia account for more than three-quarters of all considered exhaust emissions, followed by major countries in the Middle East and Southeast Asia. Action in these 15 countries could reduce emissions for the whole region significantly. Exhaust control and maintenance can focus on motorized two-wheelers, buses, and heavy-duty trucks. The inventory is particularly suited for comparisons across countries and regions. Data uncertainties in transport volumes and real-world emissions, notably of hydrocarbon and particulate matter, should be reduced.

66 citations


Cites background from "Emission functions for heavy duty v..."

  • ...Recently it has been found that real-world emissions from heavy-duty vehicles in Western Europe are approximately 30% higher than the limit values (29)....

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Journal ArticleDOI
TL;DR: It is shown here how the sharp emission signals at their location of formation can be reconstructed from the flattened emission signals recorded at the analyzer by using signal theory approaches.
Abstract: Instantaneous emission models of vehicles describe the amount of emitted pollutants as a function of the driving state of the car. Emission measurements of chassis dynamometer tests with high time resolution are necessary for the development of such models. However, the dynamics of gas transport in both the exhaust system of the car and the measurement line last significantly longer than 1 s. In a simplified approach, the transport dynamics can be divided into two parts: a perfect time delay, corresponding to a piston-like transport of the exhaust gas, and a dynamic part, corresponding to the mixing of gases by turbulence along the way. This determines the occurrence of emission peaks that are longer in time and lower in height at the analyzer than they actually are in the vehicle at their location of formation. It is shown here how the sharp emission signals at their location of formation can be reconstructed from the flattened emission signals recorded at the analyzer by using signal theory approaches. A comparison between the reconstructions quality when using the raw or the dilution analyzer system is also given.

45 citations