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Konstantia Karagkouni and Maria Boile
This study reviews and categorises ports? green initiatives to reduce their polluting emissions and improve their overall environmental performance. These categories facilitate comparisons between different practices and allow the identification of commo...
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Rafal Krakowski and Kazimierz Witkowski
This article shows the effect of the addition of effective microorganisms and silver on the exhaust gas composition and fuel consumption. Exhaust emission standards are becoming increasingly stringent, which makes it difficult for engine manufacturers to...
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Francesco Barato
Hybrid rockets using specific oxidizer?fuel combinations are considered a green alternative to current propulsion systems, as they do not release very toxic or polluting exhausts, but only much less harmful substances such as carbon monoxide/dioxide and ...
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George Mallouppas, Elias A. Yfantis, Angelos Ktoris and Constantina Ioannou
The recent inclusion of shipping in the Fit for 55 legislation package will have large knock-on effects on the industry and consequently on end consumers. The present paper presents an innovative top-down methodology, the MSF455 model, which estimates th...
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Abdalrahman Khaled Mohammad, Charles Sumeray, Maximilian Richmond, Justin Hinshelwood and Aritra Ghosh
This study explored the applications of liquid hydrogen (LH2) in aerospace projects, followed by an investigation into the efficiency of ramjets, scramjets, and turbojets for hypersonic flight and the impact of grey, blue, and green hydrogen as an altern...
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Yiwei Wu, Yadan Huang, H. Wang and Lu Zhen
Reducing air pollution and greenhouse gas emissions has become one of the primary tasks for the shipping industry over the past few years. Among alternative marine fuels, liquefied natural gas (LNG) is regarded as one of the most popular alternative mari...
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Callum Stark, Yunxin Xu, Ming Zhang, Zhiming Yuan, Longbin Tao and Weichao Shi
The decarbonisation of waterborne transport is arguably the biggest challenge faced by the maritime industry presently. By 2050, the International Maritime Organization (IMO) aims to reduce greenhouse gas emissions from the shipping industry by 50% compa...
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George Mallouppas and Elias Ar. Yfantis
This review paper examines the possible pathways and possible technologies available that will help the shipping sector achieve the International Maritime Organization?s (IMO) deep decarbonization targets by 2050. There has been increased interest from i...
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Agis G. Koumentakos
The maritime industry, among all other industries, is being forced to gradually reduce its emissions. Legislation is one of the tools applying this pressure, and from 1 January 2020, it focuses on the reduction of sulfur percentage in the heavy fuel oil ...
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