Results 71 to 80 of about 11,828 (296)

Numerical Study of the Energy-Saving Effect of the Gate Rudder System

Journal of Marine Science and Engineering
Energy-saving device (ESD) plays an important role in mitigating the emission of greenhouse gases in ship industry. It is necessary to study a promising ESD, a gate rudder, for its great potential in promoting energy efficiency.
Hujia Cui, Donglei Zhang, Yuan Kong, Xianzhou Wang   +3 more
doaj   +1 more source

A RANS Modelling Approach for Predicting Powering Performance of Ships in Waves

, 2013
In this paper, a modelling technique for simulating selfpropelled ships in waves is presented. The flow is modelledusing a RANS solver coupled with an actuator diskmodel for the propeller.
Hudson, Dominic, Winden, Bjorn, Turnock, Stephen, Björn Windén, Stephen Turnock, Dominic Hudson, Hudson, Dominic A., Turnock, S.R.   +7 more
core   +1 more source

PPO‐Based Reinforcement Learning for the Semi‐Active Vibration Control of MDOF Platform

AI &Innovation, EarlyView.
ABSTRACT Aiming at the coupled vibration problem of a multi‐degree‐of‐freedom (MDOF) vibration isolation platform under eccentric excitation, this paper proposes a semi‐active vibration control strategy based on Proximal Policy Optimization (PPO) ‐based reinforcement learning (PPO RL).
Wei Huang, Jian Xu
wiley   +1 more source

Shipping energy efficiency: dynamic model validation of an existing cruise ship through measured data

, 2023
In order to meet the environmental targets imposed by 2050, new high-efficiency technologies and innovative control strategies are considered to improve energy system performances.
Giovanni Barone, Annamaria Buonomano, Gianluca Del Papa, Robert Maka, Giuseppe Russo, Adolfo Palombo, Cesare Forzano, Giovanni Francesco Giuzio   +7 more
core  

Monitoring and Analysis of the Performance Data of a RO-PAX Ship in the Perspective of Energy Efficiency

Polish Maritime Research, 2015
The rising cost of fuel, the more and more severe international standards and a growing awareness of the environmental impact of pollutant emissions have led energy efficiency to become a theme of great interest in the marine sector.
Maria Galli Anna, Gualeni Paola, Stranieri Giuseppe, Qualich Stefano, Cusano Giovanni   +4 more
doaj   +1 more source

Energy and exergy analysis of a cruise ship [PDF]

, 2015
The shipping sector is today facing numerous challenges. Fuel prices are expected to increase in the medium-long term, and a sharp turn in environmental regulations will require several companies to switch to more expensive distillate fuels.
Ahlgren, Fredrik, Baldi, Francesco, Nguyen, Tuong-Van, Gabrielii, Cecilia, Andersson, Karin   +4 more
core   +1 more source

COMPARISON OF ENERGY EFFICIENCY INDEX OF THE SMALL SPEED FERRY AND THE PASSENGER VEHICLE

Sučasnì Informacìjnì Tehnologìï u Sferì Bezpeki ta Oboroni, 2015
The information about the energy efficiency of various technical devices, at present, is a necessary knowledge to design new and upgraded equipment.
Mykola M. Konotopets, Oleksandr O. Kanifolskyi   +1 more
doaj  

APPLICATION OF THERMOCHEMICAL WASTE HEAT RECOVERY IN POWER PLANTS OF HIGH-TECH SHIPS

Авіаційно-космічна техніка та технологія, 2019
The research’s subject is the processes of energy transformation of fuel in the ship power plant with thermo-chemical waste heat recovery. Modern approaches to assessing the energy efficiency of ship power plants were considered.
Александр Константинович Чередниченко
doaj   +1 more source

Concept design of a fast sail assisted feeder container ship

, 2010
A fast sail assisted feeder container ship concept has been developed for the 2020 container market in the South East Asian and Caribbean regions.The design presented has met the requirements of an initial economic study, with a cargo capacity of 1270 ...
Lloyd, Thomas, Shin, Ie Bum, Smith, Ben, Mockler, Simon, Mortola, Lorenzo, Hearn, Grant E., Burden, Aaron   +6 more
core  

Research on Evaporation Characteristics and Safe Storage Duration of Marine Liquid Hydrogen Storage Tanks Under the Coupling Effect of Heat Leakage and Sloshing

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Liquid hydrogen, a zero‐carbon and high–energy‐density fuel, is a promising option for future oceangoing vessels. During maritime transportation, onboard cryogenic tanks are exposed to ambient heat leakage and ship‐induced roll motion, which can trigger sloshing and fundamentally modify the coupled thermo‐fluid processes governing boil‐off and
Yan Deng, Wenfeng Wu, Zhenyu Zhao, Rongsheng Lin, Liangyi Sun, Youfei Liu   +5 more
wiley   +1 more source