1.A.5.b iii - Emissions from Military Navigation

Last updated on 30 Aug 2017 16:54 (cf. Authors)

Short description

In sub-category 1.A.5.b iii - Other, Mobile (including Military) emissions from military navigation are reported.

NFR-Code Name of Category Method AD EF Key Source for (by1)
1.A.5.b iii Other: Military - Mobile Combustion: Waterborne T1, T2 NS, M D, M, CS, T1, T3 see superordinate chapter

Method

Activity Data

Primary fuel data for national military waterborne activities is included in NEB lines 6 ('International Deep-Sea Bunkers') and 64 ('Coastal and Inland Navigation') for IMO and non-IMO ships respectively.

The annual shares used within NFR 1.A.5.b iii are therefore calculated within (BSH, 2015), where ship movement data (AIS signal) allows for a bottom-up approach providing the needed differentiation.

Table 1: Annual fuel consumption, in TJ
1990 1995 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Diesel Oil 983 665 563 516 497 449 431 410 383 366 360 349 347 330 313 302 330 226
Biodiesel NA NA NA NA NA NA 4 9 11 16 18 24 22 21 20 18 18 13
Heavy Fuel Oil NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
TOTAL 983 665 563 516 497 449 434 419 394 382 378 373 369 351 334 319 349 239

Emission factors

The emission factors applied here, are derived from different sources and therefore are of very different quality.

For the main pollutants, country-specific implied values are used, that are based on tier3 EF included in the BSH model [1] which mainly relate on values from the EMEP/EEA guidebook 2013 [2]. These modelled IEFs take into account the ship specific information derived from AIS data as well as the mix of fuel-qualities applied depending on the type of ship and the current state of activity.

For heavy metals and PAHs, HCB and PCBs, tier1 defaults from [2] are used directly, whereas for PCDD/F values from a study carried out for UBA are applied. - Here, as the guidebook does not provide source-specific values for PAHs, respective values provided for diesel in railways and heavy duty road vehicles have been applied as a gap-filling proxy [2].

Regarding PCDD/F, a country-specific value for diesel oil from (Rentz et al., 2008) [3] has been applied.

Table 3: (I)EFs used for 2015 emission estimates1
NH3 NMVOC NOx SO2 CO PM2.5 PM10 TSP BC Pb Cd Hg As Cr Cu Ni Se Zn B[a]P B[b]F B[k]F I[…]P ∑PAH 1-4 PCDD/F HCB PCBs
[kg/TJ] [g/TJ] [mg/TJ] [g I-Teq] [mg/TJ]
0.322 54.52 1,0422 65.22 1982 64.32 68.82 68.82 19.99 3.034 0.234 0.704 0.934 1.164 20.54 234 2.334 27.94 6985 1,1645 8016 1846 2,8477 93.08 1.865 8.855

1 due to lack of better information: similar EF are applied for fossil diesel oil and biodiesel
2 country-specific values from [1]
3 EF(PM2.5) also applied for PM10 and TSP (assumption: > 99% of TSP consists of PM2.5)
4 tier1 defaults from [2], chapter: 1.A.3.d.i, 1.A.3.d.ii, 1.A.4.c.iii Navigation, Table 3-2
5 tier1 defaults from [2], chapter: 1.A.3.c Railways: Diesel, Table 3-1
6 tier1 defaults from [2], chapter: 1.A.3.b.i, 1.A.3.b.ii, 1.A.3.b.iii, 1.A.3.b.iv - Road transport, Table 3-8: HDV, Diesel
7 sum of tier1 default values applied for B[a]P, B[b]F, B[k]F, and I[1,2,3-c,d]P
8 tier1 values derived from [3]
9 estimated from a BC-fraction of 0.31 as provided in [2], chapter: 1.A.3.d.i, 1.A.3.d.ii, 1.A.4.c.iii Navigation, Table 3-2

Discussion of emission trends

This sub-category is not considered separately in the key category analysis.

Due to the application of very several tier1 emission factors, most emission trends reported for this sub-category only reflect the trend in fuel deliveries.
Therefore, the fuel-consumption dependend trends in emission estimates are only influenced by the annual fuel mix.

Selected main pollutants: NOx

Sulphur dioxide and particulate matter

As fuel sulphur content underlies strict legislation, the trends of these directly related emissions reflect the outcome of ever lower fuel sulphur contents.

Recalculations

As no revision of the underlying model could be carried out for the 2017 submission, all data remain unchanged.

Uncertainties

See superordinate chapter on NFR 1.A.5.b.

Planned improvements

A routine revision of the underlying model planned for the next annual submission.


Bibliography
1. BSH, 2016: Pflege und Aktualisierung des Modells zur Berechnung der Energieeinsätze und Emissionen des von deutschen Häfen ausgehenden Seeverkehrs, im Auftrag des Umweltbundesamtes, Hamburg, 2015.
2. EMEP/EEA, 2016: EMEP/EEA air pollutant emission inventory guidebook 2016, Copenhagen, 2016.
3. Rentz et al., 2008: Nationaler Durchführungsplan unter dem Stockholmer Abkommen zu persistenten organischen Schadstoffen (POPs), im Auftrag des Umweltbundesamtes, FKZ 205 67 444, UBA Texte | 01/2008, January 2008 - URL: http://www.umweltbundesamt.de/en/publikationen/nationaler-durchfuehrungsplan-unter-stockholmer
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