Results 61 to 70 of about 169,765 (282)

Validation of an Emission Model for a Marine Diesel Engine with Data from Sea Operations

open access: yesJournal of Marine Science and Application, 2021
In this study, a model is developed to simulate the dynamics of an internal combustion engine, and it is calibrated and validated against reliable experimental data, making it a tool that can effectively be adopted to conduct emission predictions.
Luigia Mocerino   +4 more
semanticscholar   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

open access: yesDeep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long   +4 more
wiley   +1 more source

A Novel Modular Multi-Unit Cell Permanent Magnet Thrust Bearing with Bionic Design and Load-Carrying Capacity Analysis

open access: yesApplied Sciences
Permanent magnet thrust bearings have garnered significant attention due to their high rotational speeds, low noise levels, and excellent vibration-damping performance.
Xiangdong Yu   +6 more
doaj   +1 more source

Real-Time Optimization Energy Management Strategy for Fuel Cell Hybrid Ships Considering Power Sources Degradation

open access: yesIEEE Access, 2020
In order to protect the marine environment, the fuel cell has become a good candidate for the main energy source of marine vehicles due to its remarkable performance of high efficiency, quietness, and cleanness. However, the fuel cell of the hybrid power
Zehui Zhang, Cong Guan, Zhiyong Liu
doaj   +1 more source

AVL BOOST-based typical fault simulation and data analysis of marine diesel engine

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesDue to many disadvantages in obtaining the fault type data of large marine diesel engine through bench testing or real ship, the numerical calculation of diesel engine fault simulation is particularly important, which is of great significance ...
Zhiqiang ZHAO   +4 more
doaj   +1 more source

Pentachlorophenol and spent engine oil degradation by Mucor ramosissimus [PDF]

open access: yes, 2008
Pentachlorophenol (PCP) has been widely used for many years and belongs to the most toxic pollutants. Spent engine oils enter environment every day in many ways. Both of them cause great environmental concern.
Długoński, Jerzy, Szewczyk, Rafał
core   +1 more source

From Ship to Shore: A Review of Vessel‐To‐Grid Bidirectional Charging for Sustainable Maritime Transport

open access: yesEcoEnergy, EarlyView.
As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor   +3 more
wiley   +1 more source

Modeling and Analysis of Actuators in Multi-Pump Waterjet Propulsion Systems

open access: yesJournal of Marine Science and Engineering
Waterjet propulsion, which generates thrust by ejecting water jets, has attracted significant attention in modern high-performance vessels due to its efficiency, superior cavitation resistance, and excellent maneuverability.
Shuli Jia   +5 more
doaj   +1 more source

Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems

open access: yesEnergy Science &Engineering, EarlyView.
This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk   +4 more
wiley   +1 more source

Transient torsional vibration analysis of marine diesel engine under short-circuit impact

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesIn order to formulate an optimization scheme for the torsional vibration parameters of a marine diesel generator shaft system, it is necessary to analyze the transient torsional vibration characteristics of the diesel generator under short ...
Congcong XU   +6 more
doaj   +1 more source

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