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Seda Sahin and Ayse Torun
This study was primarily conducted to investigate the potential use of pumpkin seed oil in biodiesel production. Initially, the fatty acid composition of oils extracted from discarded pumpkin seeds was determined. Then, biodiesel produced from discarded ...
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Dionysios Polemis, Michael Boviatsis and Stefanos Chatzinikolaou
The wide spread of the Diesel engine has been instrumental in the development of modern shipping. Marine Diesel engines dominate today as an option for the propulsion of commercial ships. While replacing Diesel engines with alternative propulsion engines...
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Vladimir Pelic, Ozren Bukovac, Radoslav Radonja and Nastia Degiuli
Modern marine propulsion systems must be reliable, energy efficient, environmentally friendly, and economical. Efforts to reduce fuel costs and carbon dioxide (CO2) emissions per nautical mile have a significant impact on the choice of propulsion system....
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Van Chien Pham, Hanseok Kim, Jae-Hyuk Choi, Antony J. Nyongesa, Jongsu Kim, Hyeonmin Jeon and Won-Ju Lee
Recent developments in power electronics, energy storage systems, and renewable energy; increased market demands for more efficient and cleaner electric power to meet stricter environmental regulations; and development in gigawatt (GW)-class DC (direct c...
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Maja Percic, Nikola Vladimir, Ailong Fan and Ivana Jovanovic
Energy requirements push the shipping industry towards more energy-efficient ships, while environmental regulations influence the development of environmentally friendly ships by replacing fossil fuels with alternatives. Current mathematical models for s...
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Kati Lehtoranta, Päivi Koponen, Hannu Vesala, Kauko Kallinen and Teuvo Maunula
Liquefied natural gas (LNG) use as marine fuel is increasing. Switching diesel to LNG in ships significantly reduces air pollutants but the methane slip from gas engines can in the worst case outweigh the CO2 decrease with an unintended effect on climate...
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Vladimir Pelic, Tomislav Mrakovcic, Radoslav Radonja and Marko Valcic
The medium-speed diesel engine in diesel-electric propulsion systems is increasingly used as the propulsion engine for liquefied natural gas (LNG) ships and passenger ships. The main advantage of such systems is high reliability, better maneuverability, ...
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Matteo Dodero, Serena Bertagna, Alberto Marino? and Vittorio Bucci
Currently, most ships use internal combustion engines (ICEs) either as propulsion engines or generator sets. The growing concern in environmental protection along with the consequent international rule framework motivated shipowners and designers to repl...
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Roberto Ianniello, Gabriele Di Blasio, Renato Marialto, Carlo Beatrice and Massimo Cardone
Technological and economic concerns correlated to fulfilling future emissions and CO2 standards require great research efforts to define an alternative solution for low emissions and highly efficient propulsion systems. Alternative fuel formulation could...
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Crístofer H. Marques, Jean-D. Caprace, Carlos R. P. Belchior and Alberto Martini
Increasing environmental demands, alongside the planned penetration of natural gas as marine fuel, have rendered dual-fuel engines as an attractive prime mover alternative. In this context, knowing the specific fuel consumption is essential to selecting ...
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