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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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Seongwan Kim and Hyeonmin Jeon
Decarbonization is an ongoing issue in the shipping industry, and electric propulsion systems are being proposed as alternative solutions to satisfy this requirement. To answer the fundamental questions of ?Are electric propulsion systems the green solut...
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Chang-Min Lee, Tae-Youl Jeon, Byung-Gun Jung and Young-Chan Lee
Since fuel prices account for approximately 40% of a ship?s operating costs, shipping companies worldwide have made significant efforts to save energy on board such as introducing new technologies or machine operation methods. Many ship operators have ad...
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Miloud Rezkallah, Hussein Ibrahim, Félix Dubuisson, Ambrish Chandra, Sanjeev Singh, Bhim Singh and Mohamad Issa
In this paper, a composite control strategy for improved off-grid configuration based on photovoltaic (PV array), a wind turbine (WT), and a diesel engine (DE) generator to achieve high performance while supplying nonlinear loads is investigated. To oper...
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Hyeonmin Jeon and Jongsu Kim
In the case of DC power distribution-based variable speed engine synchronous generators, if the output reference voltage is kept constant regardless of the generator engine operating speed, it may cause damage to the internal device and windings of the g...
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Kristian Eikeland Holmefjord, Lars Husdal, Martijn de Jongh and Sverre Torben
We examine the fuel savings of Edda Passat, a newly constructed wind farm support vessel that utilizes a common direct current (DC) grid. This enables its diesel engines to operate at variable speeds by using frequency converter technology. A detailed in...
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Nanyang Zhao, Zhiwei Mao, Donghai Wei, Haipeng Zhao, Jinjie Zhang and Zhinong Jiang
Diesel engines, as power equipment, are widely used in the fields of the automobile industry, ship industry, and power equipment. Due to wear or faulty adjustment, the valve train clearance abnormal fault is a typical failure of diesel engines, which may...
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Efthimios G. Pariotis, Theodoros C. Zannis and John S. Katsanis
The present study describes a model-based approach for the assessment of central cooling retrofit solutions using variable speed drive (VSD) seawater (SW) pumps in marine applications. There are two main innovative features of the proposed methodology. T...
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Guillermo Rey, Carlos Ulloa, José Luís Míguez and Antón Cacabelos
Tri-generation plants will have an important role in the near future in the residential sector where heating and cooling demands come into play throughout the year. Depending on the building?s location, the characteristics of its enclosure and its use, t...
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