Benchmark for Reduction of Anchored Vessels Emissions Enabling Change of Operations - Research on air pollution management in The Port of Gothenburg, Sweden
Typ
Examensarbete för masterexamen
Program
Maritime management (MPMAR), MSc
Publicerad
2021
Författare
Florez, Carlos
Betancur, Valeria
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
While air emission inventories can be calculated for distinct levels of accuracy depending
on the availability of primary data versus average data, there are hovering
assumptions in the methodologies that lead to uncertainties in assessing CO2
benchmarks for anchoring operational mode. Normally, well-grounded information is
neither available for auxiliary engines nor boilers at anchor to estimate the fuel consumption
and the CO2 emission that stem from it. However, research can generate
primary data, as in the Brave Eco Method for tanker vessels. This case study creates
a benchmark of CO2 emission for the vessel at anchor in the port of Gothenburg as
well as qualitative information of energy management at anchor. The average CO2
emission rate for vessels at anchor in the port of Gothenburg was approximately 1.84
metric tonnes per hour in 2019. A similar emission rate is calculated for a period
of 2021 with 1.54 metric tonnes of CO2 per hour. These emissions are calculated
using a bottom-up and fuel-based inventory methodology consisting of estimating
fuel consumption for all the port’s calls. Comparisons are made for world-known
emission inventory methods in terms of CO2 emissions of the port calls. Spatial
distributions of CO2 are shown for the designated anchor areas in Gothenburg. Ultimately,
this research suggests a course of action to reduce carbon intensity in the
areas adjoining the bay.
Beskrivning
Ämne/nyckelord
Air emissions , bottom-up , emission inventory , port , anchor , vessel type , CO2 , Maritime management