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Deutman, Max (author)This thesis titled "Addressing voltage sag contribution of an optimally sized Industrial Hybrid Power System" introduces a framework for sizing an industrial Hybrid Power System (HPS) to minimise Cost and CO2 emissions relative to connecting the industrial site directly to the grid with the help of a genetic algorithm, specifically NSGA-II. The...master thesis 2023
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Carbutto, Jaco (author)Electro-fuels (E-fuels) are a potential zero-carbon fuel option, that are able to reduce emissions from the marine sector. However, e-fuels still face several challenges, as currently, their production costs are high, and the implementation<br/>of e-fuels in the marine sector is still in a research and development phase. Therefore, this study...master thesis 2023
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Gunawan, Yohanes (author), Firmansyah, Arfie Ikhsan (author), Supriatna, Nina Konitat (author), Indra Al Irsyad, Muhammad (author), Cendrawati, Dian Galuh (author), Ahadi, Khalif (author), Adilla, Ikrar (author), Silitonga, Arridina Susan (author)Burdened by oil imports and subsidies for more than 5000 diesel power plants, Indonesia aims to use crude palm oil (CPO) as fuel in the power plants. Previous studies only focused on the technical feasibility of using CPO. Therefore, this study aimed to enrich the existing literature by analyzing the technical feasibility of using CPO, degummed...journal article 2023
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Pothaar, Maarten (author)Progressing targets on GHG emission reduction urge the the Netherlands Ministry of Defense (NL MoD) to reduce the use of fossil fuels, as they announced to contribute to the Paris agreement by reducing its dependency on fossil fuels by at least 70% by the year 2050. However, without sacrificing striking power, because future naval combatants...master thesis 2022
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Iakovou, Iakovos (author)New vessels need to remain fuel flexible in order to handle the uncertainties of the future regarding the available alternative fuels aiming to lower their environmental impact. On the other hand, it is even more challenging for existing vessels that are not fuel flexible to successfully improve their carbon impact. The current study examines...master thesis 2022
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Pothaar, M.R.J. (author), Geertsma, R.D. (author), Reurings, J.W. (author)Progressing targets on Greenhouse Gas (GHG) emission reduction urge the Netherlands Ministry of Defense (NL MoD) to reduce GHG emissions, without sacrificing striking power. The Royal Netherlands Navy (RNLN) is investigating the replacement of the Air Defense and Command Frigate (LCF) between 2030 and 2040 by a Large Surface Combatant. As it...journal article 2022
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Sui, Congbiao (author), de Vos, P. (author), Stapersma, D. (author), Visser, K. (author), Hopman, J.J. (author), Ding, Yu (author)Analysis of ship propulsion system performance is often performed using detailed hydrodynamic models to assess load changes, which are subsequently compared to static engine limits, or by detailed engine models that are rarely integrated with sufficiently detailed propulsion models for load change estimation. To investigate the dynamic engine...journal article 2022
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Fujikawa, Toshihide (author), Egashira, R. (author), Hooman, K. (author), Yaguchi, H. (author), Masubuchi, H. (author), Fujikawa, S. (author)Theory of dynamical cavitation threshold for vapor and non-condensable gas bubble nuclei is proposed based on a model equation constructed from Rayleigh-Plesset equation for glycerol, the liquid with viscosity higher than that of water by 1500 times, under a finite duration of strong tension. The model equation is ascertained to be valid in...journal article 2022
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Kapetanović, M. (author), Nunez, Alfredo (author), van Oort, N. (author), Goverde, R.M.P. (author)Non-electrified regional railway lines with typically employed diesel-electric multiple units require alternative propulsion systems to meet increasingly strict emissions regulations. With the aim to identify an optimal alternative to conventional diesel traction, this paper presents a model-based assessment of hydrogen-powered propulsion...journal article 2022
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Coraddu, A. (author), Kalikatzarakis, Miltiadis (author), Theotokatos, Gerasimos (author), Geertsma, R.D. (author), Oneto, Luca (author)Accurate, reliable, and computationally inexpensive models of the dynamic state of combustion engines are a fundamental tool to investigate new engine designs, develop optimal control strategies, and monitor their performance. The use of those models would allow to improve the engine cost-efficiency trade-off, operational robustness, and...book chapter 2022
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Lambregts, Taco (author)The reduction of the of harmful emissions that result fromyachting are an increasing concern and priority. It has been widely established that yachts have a significant contribution to the emission of greenhouse gasses and other emissions that are harmful to the environment and the public health. Measures must be taken that drastically reduce...master thesis 2021
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Sui, Congbiao (author)The shipping industry, which remains the backbone of international merchandise trade, is striving to reduce its operational cost and more importantly its environment impact. New ships need meet the EEDI (Energy Efficiency Design Index) requirements of IMO (International Maritime Organization). However, the current EEDI is not able to accurately...doctoral thesis 2021
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MOSZANT, MACIEJ (author)The researched thematic concerns the phenomenon of cross-border smuggling at the mountainous desert region of Balochistan situated in Pakistan. Balochistan is the most precarious province of the country, bordering both with Iran - at the West - and Afghanistan - on the North. The region has been the homeland of the Balochi people, whose...master thesis 2021
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Rozendaal, Jelger (author)To support Van Oord’s path towards a low-emission future fleet, this thesis has focused on the technical, environmental and economic impact of a methanol hybrid power plant design for new-build offshore working vessels (OWVs). These Dynamic-Positioning (DP) vessels are known for their large and dynamic power plants and have to limit their NOx...master thesis 2021
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Kapetanović, M. (author), Nunez, Alfredo (author), van Oort, N. (author), Goverde, R.M.P. (author)Hybridization of diesel multiple unit railway vehicles is an effective approach to reduce fuel consumption and related emissions in regional non-electrified networks. This paper is part of a bigger project realized in collaboration with Arriva, the largest regional railway undertaking in the Netherlands, to identify optimal solutions in...journal article 2021
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Kapetanović, M. (author), Vajihi, Mohammad (author), Goverde, R.M.P. (author)This paper presents a simulation-based analysis of hybrid and plug-in hybrid propulsion system concepts for diesel-electric multiple unit regional railway vehicles. These alternative concepts primarily aim to remove emissions in terminal stops with longer stabling periods, with additional benefits reflected in the reduction of overall fuel...journal article 2021
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Hendrix, Emile (author)Ventilation events are the result of masses of air being transported from the water surface along the hull, through the propeller plane. Previous research in literature has shown that ventilation induces large and sudden variations of the load on the propeller. The response of the propulsion system had not been documented before. This is a...master thesis 2020
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Tol, Ruben (author)In the context of this thesis, the effect of various diesel-methanol blends in a diesel engine compared to conventional marine diesel oil is investigated by experiments and in-cylinder simulations. The main differences obtained between diesel and methanol are the lower heating value, heat of vaporization and cetane number. During the experiments...master thesis 2020
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Singh, Jaswinder (author)The innovation of underwater exhaust systems on ships increases onboard space, reduces noise emission and allows for zero direct emissions. For defense vessels, stealth is increased as the heat signature reduces due to underwater exhaust. However, there is a disadvantage of dynamic back pressure at the exhaust outlet which deteriorates the...master thesis 2019
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Venema, Menno (author)To improve the submerged time of diesel-electric submarines (SSK), air independent power (AIP) systems have been developed in the past. So far only submarines with AIP systemsin combination with one or more diesel generator (DG) sets are designed and built. The increased technological readiness level of modern fuel cells (FC) and the energy...master thesis 2019