Decarbonization of Marine Fuels—The Future of Shipping

Herdzik, Jerzy

doi:10.3390/en14144311

Cited by 33 publications

(12 citation statements)

References 11 publications

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“…The CO 2 emissions depend on the fuel consumption and carbon concentration in the fuel. The CO 2 fuel content was obtained from [34]. Table 6 show the theoretical parameters of each fuel.…”

Section: Environmental Resultsmentioning

confidence: 99%

Techno-Environmental Mission Evaluation of Combined Cycle Gas Turbines for Large Container Ship Propulsion

et al. 2022

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The stringent regulations set by the International Maritime Organization on pollutant emissions combined with the rise in fuel prices have stimulated research on cleaner fuels and new propulsion systems. This study describes a new method for evaluating alternative technologies and cleaner fuels that can be utilised in the marine sector to replace heavy fuel oil and diesel engines, and thus improve their performance while lowering carbon dioxide and nitrogen oxide emissions. The proposed techno-environmental technique allows consistent evaluation of simple intercooler/reheat gas and steam combined cycles fuelled by marine diesel fuel and liquefied natural gas, instead of a two-stroke diesel engine fuelled by marine diesel fuel, as a propulsion system of a large container ship. The implementation of the enhanced combined gas and steam cycles, and combined gas and steam cycles, fuelled by liquefied natural gas, increases the engine’s efficiency by 11% as compared with that of two-stroke diesel engines that run on marine diesel oil, while decreasing carbon dioxide and nitrogen oxide emissions by 44.7% and 76.3%, respectively. In addition, the advantages of using a gas and steam combined cycle to burn LNG over the gas and steam combined cycle for burning marine diesel oil are demonstrated.

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“…The CO 2 emissions depend on the fuel consumption and carbon concentration in the fuel. The CO 2 fuel content was obtained from [34]. Table 6 show the theoretical parameters of each fuel.…”

Section: Environmental Resultsmentioning

confidence: 99%

Techno-Environmental Mission Evaluation of Combined Cycle Gas Turbines for Large Container Ship Propulsion

et al. 2022

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“…Switching to alternative fuels are actions taken by ship-owners to comply with the regulations introduced by IMO. However, these are ad hoc actions, because alternative fuels such as bio-diesel, FAME, synthetic LNG reduce the emission of pollutants such as sulfur and nitrogen oxides, particulate matter, but carbon dioxide emission do not meet the requirements after 2025 [20,21,22,23,24]. One way out of this situation remains, to recognize that carbon dioxide emission from these fuels do not fall into within these requirements -they do not come from the combustion of fossil fuels.…”

Section: Alternative Fuels In Shippingmentioning

confidence: 99%

Indication of the Target Alternative Fuel for Shipping

Herdzik¹

2022

Adv. Sci. Technol. Res. J.

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The article presents the regulations of the International Maritime Organization aimed at reducing carbon dioxide emissions from international shipping. One of the main objectives is to search the alternative to fossil fuels. The main problem is the lack of indication of the target fuel for shipping. The current changes, forced by international regulations, are made by the decisions of shipowners who themselves are looking for an alternative fuel that will enable them to continue their activities. Attempts have been made to use fuels considered as transient, which will be used in the perspective of about 10 years. However, this is too short a time compared to the life of the ship (20-30 years). This will force another change in the type of fuel used on ships still in operation, which will result in additional costs associated with the adaptation of the ship's power plant fuel systems to a diff erent type of fuel. The article evaluates the changes that currently taking place. Scenarios of the most likely directions of changes in a perspective of 2050 have been indicated.

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“…7. LNG ship propulsion plant with X-DF engines solution [13] Thanks to advanced technology, X-DF is Tier III compliant without the need for an expensive emission control process [45,46] such as a scrubber or SCR system, as shown in Table 7.…”

Section: -Df Lsdf Propulsionmentioning

confidence: 99%

Analysis of LNG carrier propulsion developments

et al. 2022

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The LNG market has undergone major changes and significant development in recent years. With the increase in the number of ships and the increase in the amount of gas transported, the propulsion machinery of LNG ships has also changed. For many years, the steam turbine was the only propulsion engine on this type of cargo ship. A negligible number of vessels powered by a traditional, low-speed, heavy-duty diesel engines are increasingly being replaced by new technologies. Versions of dual-fuel internal combustion engines that burn evaporated natural gas are increasingly replacing steam turbine propulsion systems. This phenomenon has been particularly pronounced in the last few years, when orders for steam turbine-powered LNG vessels have ceased. This article examines and presents the main reasons for these changes, which fall into two categories. The first is financial, as the use of new technologies can lead to significant financial savings in fuel consumption. Fuel costs can be reduced by more than 35% in some cases. The reduction in fuel consumption leads to a significant reduction in overall exhaust emissions and thus a reduction in air pollution and CO2 signature.

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Decarbonization of Marine Fuels—The Future of Shipping

Cited by 33 publications

References 11 publications

Techno-Environmental Mission Evaluation of Combined Cycle Gas Turbines for Large Container Ship Propulsion

Techno-Environmental Mission Evaluation of Combined Cycle Gas Turbines for Large Container Ship Propulsion

Indication of the Target Alternative Fuel for Shipping

Analysis of LNG carrier propulsion developments

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