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Jaehan Jeon and Gerasimos Theotokatos
Digital twins (DTs) are gradually employed in the maritime industry to represent the physical systems and generate datasets, among others. However, the trustworthiness of both the digital twins and datasets must be assured. This study aims at developing ...
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Paul Lee, Gerasimos Theotokatos and Evangelos Boulougouris
Autonomous ships are expected to extensively rely on perception sensors for situation awareness and safety during challenging operations, such as reactive collision avoidance. However, sensor noise is inevitable and its impact on end-to-end decision-maki...
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Daoyi Lu, Gerasimos Theotokatos, Jundong Zhang, Hong Zeng and Keying Cui
Although the exhaust gas recirculation (EGR) technology has been proven effective to decrease the marine engine?s nitrogen oxides (NOx) emissions, it is associated with a considerable fuel consumption increase and challenges to the engine?turbocharger ma...
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Panagiotis Karvounis, João L. D. Dantas, Charalampos Tsoumpris and Gerasimos Theotokatos
The shipping sector decarbonisation has attracted great attention due to the sector contribution to worldwide carbon emissions. This study aims at investigating the techno-economic?environmental performance of different ship power plants to identify sust...
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Konstantinos Milioulis, Victor Bolbot and Gerasimos Theotokatos
Recent regulatory requirements for shipping emissions control have led to the adoption of Liquefied Natural Gas (LNG) as a marine fuel and the design of LNG-fuelled vessels. Considering the potential safety implications due to system failure/unavailabili...
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La Xiang, Gerasimos Theotokatos, Haining Cui, Keda Xu, Hongkai Ben and Yu Ding
Both spark ignition (SI) natural gas engines and compression ignition (CI) dual fuel (DF) engines suffer from knocking when the unburnt mixture ignites spontaneously prior to the flame front arrival. In this study, a parametric investigation is performed...
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Sokratis Stoumpos, Gerasimos Theotokatos, Christoforos Mavrelos and Evangelos Boulougouris
This study aims at developing an integrated model that combines detailed engine thermodynamic modelling and the control system functional modelling paving the way towards the development of high-fidelity digital twins. To sufficiently represent the combu...
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Gerasimos Theotokatos and Andrea Coraddu
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Nikoletta L. Trivyza, Athanasios Rentizelas and Gerasimos Theotokatos
The Energy Efficiency Design Index (EEDI) was introduced as a regulatory tool employed at the ship design phase to reduce the carbon dioxide (CO2) emissions and increase the vessel?s operational efficiency. Although it stimulated the greening of the ship...
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Iraklis Lazakis, Konstantinos Dikis, Anna Lito Michala, Gerasimos Theotokatos
Pág. 1679 - 1688
Structural and machinery failures in the day-to-day ship operations may lead to major accidents, endangering crew and passengers onboard, posing a threat to the environment, damaging the ship itself and having a great impact in terms of business losses. ...
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