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sector:energy:fuel_combustion:transport:railways:start [2022/01/10 13:59] – [Table] kotzulla | sector:energy:fuel_combustion:transport:railways:start [2024/11/06 14:47] (current) – external edit 127.0.0.1 | ||
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In category //1.A.3.c - Railways//, emissions from fuel combustion in German railways and from the related abrasion and wear of contact line, braking systems and tyres on rails are reported. | In category //1.A.3.c - Railways//, emissions from fuel combustion in German railways and from the related abrasion and wear of contact line, braking systems and tyres on rails are reported. | ||
- | ^ Category Code ^ Method | + | ^ Category Code ^ Method |
- | | 1.A.3.c | + | | 1.A.3.c |
- | ^ | + | ^ |
- | | 1.A.3.c | + | | Key Category: |
{{page> | {{page> | ||
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=== Activity Data === | === Activity Data === | ||
- | Basically, total inland deliveries of //diesel oil// are available from the National Energy Balances (NEBs) (AGEB, | + | Basically, total inland deliveries of //diesel oil// are available from the National Energy Balances (NEBs) (AGEB, |
Data on the consumption of biodiesel in railways is provided in the NEBs as well, from 2004 onward. But as the NEBs do not provide a solid time series regarding most recent years, the data used for the inventory is estimated based on the prescribed shares of biodiesel to be added to diesel oil. | Data on the consumption of biodiesel in railways is provided in the NEBs as well, from 2004 onward. But as the NEBs do not provide a solid time series regarding most recent years, the data used for the inventory is estimated based on the prescribed shares of biodiesel to be added to diesel oil. | ||
- | Small quantities of //solid fuels// are used for historical steam engines vehicles operated mostly for tourism and exhibition purposes. Official fuel delivery data are available for lignite, through 2002, and for hard coal, through 2000, from the NEBs. In order to complete these time series, | + | Small quantities of //solid fuels// are used for historical steam engines vehicles operated mostly for tourism and exhibition purposes. Official fuel delivery data are available for lignite, through 2002, and for hard coal, through 2000, from the NEBs. In order to complete these time series, |
- | A follow-up study to gain original cosumption data for 2015 was carried out in 2016 by Illichmann, S. (2016) [(ILLICHMANN2016)]. | + | |
__Table 1: Overview of activity-data sources for domestic fuel sales to railway operators__ | __Table 1: Overview of activity-data sources for domestic fuel sales to railway operators__ | ||
- | ^ **Activity** ^ **data source / quality of activity data** ^ | + | ^ Activity ^ data source / quality of activity data ^ |
- | | **combustion of:** || | + | | combustion of: || |
| Diesel oil | 1990-2004: NEB lines 74 and 61: ' | | Diesel oil | 1990-2004: NEB lines 74 and 61: ' | ||
| Biodiesel | calculated from official blending rates | | | Biodiesel | calculated from official blending rates | | ||
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__Table 3: Annual transport performance, | __Table 3: Annual transport performance, | ||
- | | ^ 1990 ^ 1995 ^ 2000 ^ 2005 ^ 2006 ^ 2007 ^ 2008 ^ 2009 ^ 2010 ^ 2011 ^ 2012 ^ 2013 ^ 2014 ^ 2015 ^ 2016 ^ 2017 ^ 2018 ^ 2019 ^ 2020 ^ | + | | ^ 1990 ^ 1995 ^ 2000 ^ 2005 ^ 2006 ^ 2007 ^ 2008 ^ 2009 ^ 2010 ^ 2011 ^ 2012 ^ 2013 ^ 2014 ^ 2015 ^ 2016 ^ 2017 ^ 2018 ^ 2019 ^ 2020 ^ |
- | | **Electric | + | | **Diesel |
- | | **Diesel | + | | **Electric |
- | ^ Ʃ 1.A.3.c | + | ^ Ʃ 1.A.3.c |
- | {{ : | + | {{: |
- | {{ : | + | {{: |
- | Regarding particulate-matter and heavy-metal emissions from **abrasion and wear of contact line, braking systems, tyres on rails**, annual transport performances of railway vehicles with electrical and Diesel traction derived from Knörr et al. (2020a) [(KNOERR2020a)] are applied as activity data. | + | Regarding particulate-matter and heavy-metal emissions from **abrasion and wear of contact line, braking systems, tyres on rails**, annual transport performances of railway vehicles with electrical and Diesel traction derived from Knörr et al. (2021a) [(KNOERR2021a)] are applied as activity data. |
==== Emission factors ==== | ==== Emission factors ==== | ||
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__Table 3: Annual country-specific emission factors for diesel fuels< | __Table 3: Annual country-specific emission factors for diesel fuels< | ||
- | | | **1990** | **1995** | **2000** | **2005** | **2010** | **2011** | **2012** | **2013** | **2014** | **2015** | **2016** | **2017** | **2018** | **2019** | **2020** | | + | | ^ |
- | ^ NH< | + | ^ NH< |
- | ^ NMVOC | + | ^ NMVOC |
- | ^ NO< | + | ^ NO< |
- | ^ SO< | + | ^ SO< |
- | ^ BC< | + | ^ BC< |
- | ^ PM | | + | ^ PM | |
- | ^ CO | 287 | 292 | 255 | 162 | 121 | 121 | 105 | 101 | | + | ^ CO | 287 | 292 | 255 | 162 | 121 | 121 | 105 | 101 | |
< | < | ||
< | < | ||
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| **Hard coal coke** | | **Hard coal coke** | ||
- | __Table | + | __Table |
- | ^ | + | ^ |
- | ^ Contact line < | + | ^ Contact line < |
- | ^ Tyres on rails < | + | ^ Tyres on rails < |
- | ^ Braking system < | + | ^ Braking system < |
- | ^ Current collector < | + | ^ Current collector < |
< | < | ||
< | < | ||
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===== Discussion of emission trends ===== | ===== Discussion of emission trends ===== | ||
- | __Table: Outcome of Key Category Analysis__ | + | __Table |
| for: ^ NO< | | for: ^ NO< | ||
| by: | Trend | | by: | Trend | ||
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Therefore, for the **main pollutants**, | Therefore, for the **main pollutants**, | ||
- | {{ : | + | {{: |
- | {{ : | + | {{: |
- | For all fractions of **particulate matter**, the majority of emissions generally result from abrasion and wear and the combustion of diesel fuels. Additional jumps in the over-all trend result from the use of lignite briquettes (1996-2001). Here, as the EF(BC) for fuel combustion are estimated via fractions provided in [(EMEPEEA2019)], | + | For all fractions of **particulate matter**, the majority of emissions generally result from abrasion and wear and the combustion of diesel fuels. Additional jumps in the over-all trend result from the use of lignite briquettes (1996-2001). Here, as the EF(BC) for fuel combustion are estimated via fractions provided in [(EMEPEEA2019)], |
- | {{ : | + | {{: |
- | {{ : | + | {{: |
Due to fuel-sulphur legislation, | Due to fuel-sulphur legislation, | ||
For the years as of 2005, sulphur emissions from diesel combustion have decreased so strongly, that the over-all trend shows a slight increase again due to the now dominating contribution of sulphur from the use of solid fuels. | For the years as of 2005, sulphur emissions from diesel combustion have decreased so strongly, that the over-all trend shows a slight increase again due to the now dominating contribution of sulphur from the use of solid fuels. | ||
- | {{ : | + | {{: |
Regarding **heavy metals**, emissions from combustion of diesel oil and from abrasion and wear are estimated from tier1 default emission factors. | Regarding **heavy metals**, emissions from combustion of diesel oil and from abrasion and wear are estimated from tier1 default emission factors. | ||
Therefore, the emission trends reflect the development of diesel use and - for copper, chromium and nickel emissions resulting from the abrasion & wear of contact line and braking systems - the annual transport performance (see description of activity data above). | Therefore, the emission trends reflect the development of diesel use and - for copper, chromium and nickel emissions resulting from the abrasion & wear of contact line and braking systems - the annual transport performance (see description of activity data above). | ||
- | {{ : | + | {{: |
- | {{ : | + | |
\\ | \\ | ||
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===== Recalculations ===== | ===== Recalculations ===== | ||
- | Given the revised NEB 2019, both the**activity data** | + | Given the revised NEB 2019, both the **activity data** |
In addition, the amounts of solid fuels used in steam locomotives has been revised widely based on a study carried out in 2021. | In addition, the amounts of solid fuels used in steam locomotives has been revised widely based on a study carried out in 2021. | ||
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^ relative change | ^ relative change | ||
- | Due to the routine revision of the TREMOD model [(KNOERR2020b)], tier2 **emission factors** changed for recent years. | + | Due to the routine revision of the TREMOD model [(KNOERR2021a)], tier2 **emission factors** changed for recent years. |
Here, the revision results mainly from the consideration of revised NCvs for diesel oil as provided by the AGEB. | Here, the revision results mainly from the consideration of revised NCvs for diesel oil as provided by the AGEB. | ||
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^ relative change | ^ relative change | ||
+ | Furthermore, | ||
- | <WRAP center round info 60%> | + | |
- | For more information on recalculated emission estimates for Base Year and 2019, please see the pollutant-specific | + | <WRAP center round info 65%> |
+ | For **pollutant-specific | ||
</ | </ | ||
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**//Why are similar EF applied for estimating exhaust heavy metal emissions from both fossil and biofuels?// | **//Why are similar EF applied for estimating exhaust heavy metal emissions from both fossil and biofuels?// | ||
- | The EF provided in [((bibcite 5))] represent summatory values for (i) the fuel's and (ii) the lubricant' | + | The EF provided in the 2019 EMEP/EEA Guidebook |
- | [(AGEB2020> AGEB (2020): Working Group on Energy Balances (Arbeitsgemeinschaft Energiebilanzen (Hrsg.), AGEB): Energiebilanz für die Bundesrepublik Deutschland; | + | [(AGEB2021> AGEB (2021): Working Group on Energy Balances (Arbeitsgemeinschaft Energiebilanzen (Hrsg.), AGEB): Energiebilanz für die Bundesrepublik Deutschland; |
- | [(MWV2020> MWV (2020): Association of the German Petroleum Industry (Mineralölwirtschaftsverband, | + | [(MWV2021> MWV (2021): Association of the German Petroleum Industry (Mineralölwirtschaftsverband, |
[(HEDEL2012> | [(HEDEL2012> | ||
[(ILLICHMANN2016> | [(ILLICHMANN2016> | ||
- | [(KNOERR2020a> Knörr et al. (2019a): Knörr, W., Heidt, C., Gores, S., & Bergk, F.: ifeu Institute for Energy and Environmental Research (Institut für Energie- und Umweltforschung Heidelberg gGmbH, ifeu): Fortschreibung des Daten- und Rechenmodells: | + | [(HASENBALG2021> |
+ | [(KNOERR2021a> Knörr et al. (2021a): Knörr, W., Heidt, C., Gores, S., & Bergk, F.: ifeu Institute for Energy and Environmental Research (Institut für Energie- und Umweltforschung Heidelberg gGmbH, ifeu): Fortschreibung des Daten- und Rechenmodells: | ||
[(EMEPEEA2019> | [(EMEPEEA2019> | ||
[(RENTZ2008> | [(RENTZ2008> | ||
[(KNOERR2009> | [(KNOERR2009> | ||