Despite the lowest CO 2 emission in terms of payload per unit mile, commercial marine fleet transport is responsible for approximately 1 billion tonnes of CO 2 emissions per year and 2.7% of the total global CO 2 emission. To keep the world's surface temperature below critical +2 °C, International Maritime Organization works with alternative methods on a ton / mile basis to reduce existing CO 2 emissions. In this study, these methods are analyzed and their advantages and disadvantages are discussed. The future of CO 2 emissions was also investigated.
In addition to being one of the largest metropolises in the world, Istanbul is also one of the busiest routes of international maritime transport through the Strait of Istanbul (SoI). Currently, the average number of ships which passes through SoI is approximately 45,000. This number does not increase much due to the natural structure of SoI. So, larger ships with larger tonnages pass through SoI. In addition to the existing transit ship traffic in SoI, ship-based exhaust pollution caused by local maritime traffic adversely affects human health, comfort and the environment. In this study, the exhaust emissions generated by the ships of the local companies transporting in SoI were investigated. In addition, exhaust emissions from ships, one of the most important air pollutant emission sources such as motor vehicles, industrial processes and heating of residences in Istanbul, were calculated and presented. Ship exhaust gas emissions in SoI were calculated based on actual ship movements and ship machinery information using the bottom up method.
Environmentally friendly compared to other modes of transport, is still
responsi?ble for 1 billionns of CO2 emissions per year and 2.7% of total
global emissions, although it has the lowest CO2 emissions per mile. In
order to keep the world?s sur?face temperature below the critical +2 ?C,
International Maritime Organization works with alternative methods
especially in the energy efficiency design index, to increase the
productivity depending on the type and operation of the ship to reduce
current CO2 emissions each tonne per mile basis. More energy-efficient
vessels are necessary due to the increasing volume of maritime trade in
parallel to meet the growing energy demands and reduce total CO2 emissions.
Measures to reduce CO2 emissions also increase efficiency and fuel-savings.
The most significant parameter of fuel economy is the speed of the ship.
Sensitivity analysis was used to determine the ecological speed limits of
vessels in terms of minimum commercial profitability by a gradual reduction
in operating speeds. Consequently a solution methodology for the effects of
slow steaming to the global environment is presented as a CO2 emission
reduction activity under the systematic analysis of human thought.
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