Energies MDPI’s Post

#mdpienergies #highlycitedpaper Stability and Control for Buck–Boost Converter for Aeronautic Power Management 👉https://ow.ly/9YPO50QoCcO #slidingmodecontrol #powerconverters #aeronauticapplication #energymanagement #powermanagement

Moving intelligently towards the wind thrust force 🌬️ Fred. Olsen 1848 and partners have developed an advanced framework to stabilize single point moored floating wind turbines while optimizing the positioning against the wind thrust for increased energy production. This framework optimizes wind alignment by mitigating yaw drift, resulting in increased power production, uptime and reliability, and an optimized structural design. Get a full understanding of the framework in the video below or read the full journal paper here: https://lnkd.in/deCACXvH ------- Partners involved: Institute for Energy Technology, a frontrunner in international energy research, has the overall responsibility for the implementation of control strategies. ZX Lidars provides expertise on how lidar measurements can be considered as a tool for improving the response, reducing loads, and improve the yaw alignment and the power production 7Waves, an engineering company specializing in naval architecture and marine engineering, is supporting the project with valuable competence in validation and verification in a separate simulation environment     #BRUNEL #FO1848 #FloatingOffshoreWind #YawControl #YawMitigation #SinglepointMooring #RenewableEnergy #WindPower #Innovation #FloatingWind

Resurgence of Flettner Rotors in Maritime Propulsion       Developed by Anton Flettner in the 1920s, Flettner rotors leverage the Magnus effect to propel ships. These cylindrical rotors spin vertically, making use of the lateral wind to generate forward thrust. Notable vessels such as the E-Ship 1 have showcased the potential of this technology by reducing fuel consumption by 20% compared to a vessel without rotors. [2]. Flettner rotors are primarily found on cargo ships and ferries, where they serve as auxiliary propulsion systems. Companies like Norsepower, Magnuss or Anemoi lead the industry, continually refining rotor designs to suit various ship types and sizes. Currently, around 15 vessels are equipped with this technology, with an additional 15 expected by 2025 [3].   Flettner rotors are usually powered by electric motors linked to the ship's energy system. Making use of the Magnus effect, the rotors deviate the flow in their vicinity, creating thrust perpendicular to their axis. This force propels the ship forward, effectively harnessing kinetic energy from the wind. For a 7m diameter rotor the maximum thrust generated is about 770 kN with a ship speed of 19 knots and a wind speed around 22 m/s [1]. Typically, a rotor doesn't need much power compared to propellers to produce significant thrust, operating at about 40% of its motor's rated power [4]. This system's efficiency is influenced by its diameter, wind conditions, and ship speed. While the technology offers fuel savings and low maintenance, Flettner rotors take up deck space, although they are less bulky than other wind propulsion systems. Moreover, a portion of the thrust is not perfectly aligned with the ship's heading, creating a lateral force, and roll and pitch moments, which are not accounted for in the current design of container ships. A weather routing system can be used to make the most of wind propulsion and avoid headwind areas which make the rotor counter-effective.   CFD is invaluable in the development of Flettner rotors propulsion systems, enabling the visualization and analysis of the air flow to optimize the rotor shape, size, and rotating speed thereby improving performance and efficiency.   At Zelin, we offer pre-sizing, evaluation, and analysis services for wind-assisted propulsion for retrofitting or development. We also develop an innovative dedicated routing solution that integrates wind system type to help companies and shipowners optimize and reduce fuel consumption for their fleet.   #MarineEngineering #SustainableTechnology #Innovation #FlettnerRotors #CFD #FluidMechanics #EmissionReduction   Source :   https://lnkd.in/ef8zQ4MT [1] https://lnkd.in/e7wNZ9zg [2] https://lnkd.in/eW673MMY [3] https://lnkd.in/ejSM-XTa [4] https://lnkd.in/e_U3hZMd https://lnkd.in/eJa-UuC5

👏 #Highly_Cited_Article in Aerospace MDPI 📜 "Thermal Management System Optimization for a Parallel Hybrid Aircraft Considering Mission Fuel Burn" ✍ Eytan Adler, Benjamin Brelje, Joaquim R. R. A. Martins 🏫 University of Michigan 🔗 Read via: https://lnkd.in/gNTaXaSF #aircraftdesign #optimization #hybridelectric #propulsion #turbofan #thermalmanagementsystem

Dear colleagues and friends, we've just closed our first year of fruitful and hard work on the EC-funded AMBER Project (https://lnkd.in/dKZ258AU, https://www.dici.unipi.it/, https://www.unipi.it/, https://lnkd.in/dfNa3tUq, ref. HORIZON-JU-Clean-Aviation-2022-01, Project ID: 101102020) and we keep on targeting our great challenges (*): 1. development a hybrid-electric propulsion system for regional aircraft with at least 50% hybridization; 2. mission fuel burn reduction by at least 50% compared to 2020 state-of-the-art regional aircraft; 3. usage of 100% sustainable aviation fuel to reduce lifecycle GHG emissions by 90% (*) Within the AMBER Project, UniPi is contributing to the activities related to WP1.3 “Supervisory & Hierarchical Control”, whose main objectives are the architecture definition, the reliability/safety assessment, the performance characterization and the application SW development/validation of the Supervisory & Hierarchical Control System of the hybrid propulsion engine. #amber #cleanaviation #aircraft #hybrid #propulsionsystems

Hybrid Propulsion Package for Cable-Laying Vessel Features MAN 175D GenSets

Berg Propulsion has won a contract covering the hybrid propulsion solution that ensures three wind-assisted LOUIS DREYFUS ARMATEURS (LDA) ro-ro vessels will maximize efficiency regardless of their mode of operation. Following delivery by China’s Wuchang Shipbuilding from 2026 onwards, the innovative vessels will carry Airbus A320 Family jetliner subassemblies from France (Saint-Nazaire) to the final assembly line in the United States (Mobile, Alabama). The ships have been designed by Deltamarin with the aim of halving fuel burn and CO2 emissions in transatlantic operations by 2030 compared to a 2023 baseline. Wind power drawn from six Flettner rotor-sails on each ship’s deck will make a strong contribution to reduced emissions, with weather routing optimization software also in place to maximize wind-assisted time and minimize drag. In conventional mode, the ships will run on dual fuel methanol engines. Optimizing propulsion performance at all times will rely on integrated power management and propulsion systems from BERG. LDA has specified the supplier’s extensive engine-agnostic propulsion package for newbuild ships. As well as the complete propulsion train to work with each ship’s main engines, BERG is supplying state-of-the-art controllable pitch propellers with feathering capability. #bunkering #bunkermarket #energy #shipping #maritime #shipowners #decarbonization #energytransition #oilandgas #ports #marinefuels #bergpropulsion #berg #lda #louisdreyfus #deltamarin #windpropulsion #methanolpropulsion #methanol #vesseloptimization https://lnkd.in/dZCWCHgD

Wärtsilä raises level of offshore dynamic positioning with new high-performance thruster and propulsion control package #emissions #vessels #decarbonisation #energyefficiency https://lnkd.in/dp367U22

“Windcat opts for Schottel propulsion for hydrogen-fueled CSOVs” Nick Blenkey - November 02, 2023 “The first three in the series of #hydrogenfueled #CommissioningServiceOperationVessels (#CSOVs) ordered at Damen Shipyards by CMB Group’s offshore personnel transfer subsidiary Windcat (see earlier story) will feature full Schottel propulsion packages.” “The 87-meter long by 20-meters wide Elevation Series walk-to-work CSOVs will come have comfortable accommodations for 120 passengers, and will provide a large warehouse and deck as well as various recreational areas and a hospital. The propulsion system will consist of four Schottel type SRP 430 D Dynamic RudderPropellers.” “”The Elevation Series will lead the sector in exploring hydrogen as a fuel while delivering best-in-class performance and flexibility,” says Windcat’s managing director, Willem van der Wel. “It will set new standards in terms of comfort for crews and passengers. The SRP-D is a perfect match because it will also save fuel thanks to its minimized DP footprint and increase the number of working days at sea by up to five days per year.”” “Each of the #thrusters is rated with an input power of 1,780 kW and has a propeller diameter of 2,500 millimeters. They will be arranged in Damen’s DPX-Drive configuration at the bow and stern starboard and port side. No other types of #thruster are required in this layout. Besides greatly reduced propeller acceleration/deceleration times and a high-speed azimuth steering system, the SRP-D additionally features a compact design with an integrated prime mover (“Embedded L-Drive”) and an eight-degree tilted propeller shaft, resulting in less thruster-thruster and thruster-hull interaction.” “Earlier investigations of the SRP-D by classification society DNV and the MARIN research institute showed that the effect of its highly dynamic thrust allocation is most evident in harsh weather conditions and that the new thruster significantly improves a vessel’s operational performance. Recent independent research has confirmed immediate and considerable improvements with the SRP-D with a current DP control system, even in WCF (worst-case-failure) scenarios.” “The SRP-D was specifically engineered for challenging offshore applications, meeting the demands for a minimized DP footprint, enhanced positioning accuracy and fuel savings. Since its launch, it has been in high demand for CSOV newbuilds.” https://lnkd.in/eAeK4qkU Source- original post Read all my posts #MariusPreston #marinefuel #shippingindustry #hydrogenfuel #hydrogenfuelcells #shipyards

Future fleet of low-emission RoRos to use Norsepower rotor sails 💠 Louis Dreyfus Armateurs (LDA), a leading French shipowner, and Norsepower, a Finnish wind propulsion technology company, have joined forces to install the Norsepower Rotor Sail technology on the new low-emission RoRo fleet to be chartered to Airbus. 💠The Norsepower Rotor Sail is a modernized version of the old Flettner rotor concept. The Rotor Sail uses electric power to actively rotate cylinder-shaped rotors on the deck, which then leverages wind power to produce powerful thrust. The result is reduced fuel consumption, lower emissions, and, ultimately, reduced costs. 💠 The new low-emission vessels, which will be used to ship aircraft components for Airbus, will each be powered by a combination of six 35-meter tall Norsepower Rotor Sails and two dual-fuel engines running on maritime diesel oil and e-methanol. Additionally, routing software will optimize the vessels’ journey across the Atlantic, maximizing wind propulsion and avoiding drag caused by adverse ocean conditions. 💠 The new fleet will generate fewer CO2 emissions by 2030 compared to 2023 for the Transatlantic route. The rotor sails will be equipped with the Norsepower Sentient Control, which is a real-time force measurement, control, and savings reporting system. 💠 This world-first tool will enable each rotor to be controlled individually, optimizing efficiency by managing the complex aerodynamic interactions between the sails and the hydrodynamic behavior of the vessel. It’s impressive that the design phase involved extensive Computational Fluid Dynamics (CFD) and wind tunnel tests to optimize the sail arrangement and design. 💠 This fleet-wide deal is a game changer for the whole auxiliary wind propulsion industry. Firstly, it is the biggest deal ever made in the mechanical sails market – and, in a world first, it includes our brand new Norsepower SentientControl tool. #energyticslimited #renerableenergy #energyefficiency #energyinnovation #windenergy #norsepowerrotorsails #lowemissionvessels