PROPELLER EFFICIENCY ENHANCEMENT
EFFICIENCY ENHANCEMENT OF MARINE PROPELLERS VIA REFORMATION OF BLADE TIP-RAKE DISTRIBUTION Dimitra Anevlavi, Spiros Zafeiris, George Papadakis & Kostas Belibassakis School of Naval Architecture and Marine Engineering (NTUA)Correspondence: kbel@fluid.mech.ntua.gr ABSTRACT This work addresses the effects of blade tip-rake reformation on the performance of marine propellers using a low-cost potential-based vortex-lattice method (VLM) and the […]
PROPELLER PERFORMANCE
A VORTEX-ELEMENT METHOD FOR THE CALCULATION OF WAVES AND SHIP MOTION EFFECTS ON PROPELLER PERFORMANCE K. Belibassakis, School of Naval Architecture and Marine Engineering (NTUA) Presented at the 34th International Ocean and Polar Engineering Conference, Rhodes – June 2024 ABSTRACT Ship propulsion performance in environmental conditions corresponding to moderate and more severe sea states […]
RETROFIT SOLUTIONS TO REDUCE GHG EMISSIONS IN MARITIME TRANSPORT
RETROFIT SOLUTIONS TO REDUCE GHG EMISSIONS IN MARITIME TRANSPORT Alessandro Iafrati1, Spyros Hirdaris2, Thomas Koch3, Hannes Renzsch4, Nikos Themelis5, Laura Herrera6, Nikolaos Tsoulakos7, Vassilios Zagkas8, Alessandro Maccari9, Gregory Johnston10, Sabino Jose Chapero11, Milad Armin12, Roger Armson13, Cosimo Cervicato14 1 Institute of Marine Engineering-National Research Council, Via di Vallerano, 00139 – Rome,Italy2 Aalto University, Marine and […]
AI-BASED DIGITAL TWIN MODELS TO MONITOR SHIP SAFETY & EFFICIENCY
AI-BASED DIGITAL TWIN MODELS TO MONITOR SHIP SAFETY & EFFICIENCY Mingyang Zhang , Pentti Kujala (Marine and Arctic Technology Group, Aalto University, Espoo, Finland) Presented at The Gulf of Finland and Eastern Baltic Sea Science Days 2023, held in Tallinn, Estonia – November 2023 Download
OPERATIONAL DATA ANALYSIS
OPERATIONAL DATA ANALYSIS TO AID THE OPTIMIZATION OF RETROFIT SOLUTIONS WITHIN ‘RETROFIT55’ FRAMEWORK N. Themelis, School of Naval Architecture and Marine Engineering (NTUA)G. Nikolaidis, SimFWDV. Zagkas, SimFWDN. Tsoulakos, Laskaridis Shipping Co. LtdCorresponding author: nthemelis@naval.ntua.gr Presented at the 17th Annual Conference of Marine Technology (ΕΛ.Ι.Ν.Τ.) – November 2023 ABSTRACT The RETROFIT55 EU project aims to […]
A SHIP DIGITAL TWIN FOR SAFE AND SUSTAINABLE SHIP OPERATIONS
A SHIP DIGITAL TWIN FOR SAFE AND SUSTAINABLE SHIP OPERATIONS Mingyang Zhang a, Spyros Hirdaris b, Nikolaos Tsoulakos c a Department of Mechanical Engineering, Marine Technology Group, Aalto University, Espoo, Finlandb American Bureau of Shipping, Global Ship Systems Centre, Athens, Greecec Laskaridis Shipping Co. Ltd Presented at the Build IT 2023 Workshop, CNR, Italy – October 2023 […]
ANALYSIS OF COMPRESSIBLE FLOW DURING THE WATER ENTRY OF A BODY EQUIPPED WITH AN AIR LUBRICATION SYSTEM
ANALYSIS OF COMPRESSIBLE FLOW DURING THE WATER ENTRY OF A BODY EQUIPPED WITH AN AIR LUBRICATION SYSTEM Sasan Tavakoli a, Spyros Hirdaris b a Marine and Arctic Technology Group, Aalto University, Espoo, Finlandb American Bureau of Shipping, Global Ship Systems Centre, Athens, Greece Presented at the 25th Numerical Towing Tank Symposium, Ericeira, Portugal – October 2023 ABSTRACT The […]
HYDRODYNAMIC OPTIMIZATION OF SHIPS
HYDRODYNAMIC OPTIMIZATION OF SHIPS WITH RETROFITTED WASP SYSTEMS Hannes F. Renzsch, Fabian Thies (Friendship Systems AG, Germany) Presented at Innov’Sails conference – May 2023ABSTRACT Wind assisted ship propulsion has the potential to be one of the mainstays of emission reduction of commercial shipping. As it is not feasible to simply replace the fleet in service […]
