Report - DCE - Nationalt Center for Miljø og Energi

of round trips per ferry, engine size, engine load factor and fuel consumption/emission
factor. The estimates take into account the changes in emission
factors and ferry specific data during the inventory period.
For the remaining navigation categories, the emissions are calculated simply
as a product of total fuel consumption and average emission factors. For each
inventory year, this emission factor average comprises the emission factors
for all present engine production years, according to engine life times.
Please refer to Chapter 3.3 and Annex 2B for further information on emissions
from transport.
5IF TQFDJGJD NFUIPEPMPHJFT SFHBSEJOH GVHJUJWF FNJTTJPOT
'VHJUJWF FNJTTJPOT GSPN PJM # B
Fugitive emissions from oil are estimated according to the methodology described
in the Emission Inventory Guidebook (EMEP/EEA, 2009). The
sources include offshore extraction of oil and gas, onshore oil tanks, onshore
and offshore loading of ships, and gasoline distribution. Activity data is
given in the Danish Energy Statistics by the Danish Energy Authority. The
emission factors are based on the figures given in the guidebook except in
the case of onshore oil tanks and gasoline distribution where national values
are included.
The VOC emissions from petroleum refinery processes cover noncombustion
emissions from feed stock handling/storage, petroleum products
processing, and product storage/handling. SO2 is also emitted from
non-combustion processes and includes emissions from product processing
and sulphur-recovery plants. The emission calculations are based on information
from the Danish refineries.
'VHJUJWF FNJTTJPOT GSPN OBUVSBM HBT # C
Inventories of NMVOC emission from transmission and distribution of natural
gas and town gas are based on annual environmental reports from the
Danish gas transmission company and annual reports for the gas distribution
companies. The annual gas composition is based on Energinet.dk.
'VHJUJWF FNJTTJPOT GSPN GMBSJOH # D
Emissions from flaring offshore, in gas treatment and storage plants, and in
refineries are included in the inventory. Emissions calculations are based on
annual reports from the Danish Energy Agency and environmental reports
from gas storage and treatment plants and the refineries. Calorific values are
based on the reports for the EU ETS for offshore flaring, on annual gas quality
data from Energinet.dk, and on additional data from the refineries. Emission
factors are based on the Emission Inventory Guidebook (EMEP/EEA,
2009).
Please refer to Chapter 3.4 for further information on fugitive emissions from
fuels.
4QFDJGJD NFUIPEPMPHJFT SFHBSEJOH JOEVTUSJBM QSPDFTTFT
Energy consumption associated with industrial processes and the emissions
thereof is included in the inventory for stationary combustion plants. This is
due to the overall use of energy balance statistics for the inventory.