Results 51 to 60 of about 169,765 (282)

Techno-Environmental Evaluation of a Liquefied Natural Gas-Fuelled Combined Gas Turbine with Steam Cycles for Large Container Ship Propulsion Systems

open access: yesEnergies, 2022
Restrictions on emissions are being imposed by regional and international shipping organisations, which raise the question of which marine fuel and technology can most effectively replace heavy fuel oil and diesel engines.
Abdulaziz M. T. Alzayedi   +2 more
doaj   +1 more source

A comparative study on mean value modelling of two-stroke marine diesel engine [PDF]

open access: yes, 2009
In the present paper, two mean value modelling approaches of varying complexity, capable of simulating two-stroke marine Diesel engines, are presented. Both approaches were implemented in the computational environment of MATLAB Simulink®. Simulation runs
Theotokatos, Gerasimos
core  

Simulating competition in the US bioeconomy to produce hard‐to‐electrify transportation fuels using limited biomass resources

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study presents a novel bioeconomy optimization framework, BiOpt, designed to address critical questions regarding the strategic use of limited US biomass resources for biofuel production. By integrating detailed techno‐economic analyses, life cycle assessments, and resource assessment data, BiOpt optimizes resource distributions across ...
Nicholas A. Carlson   +3 more
wiley   +1 more source

Friction and Wear Behavior of Carburized Steels Against Ceramic Balls Under Starved Lubrication

open access: yesLubricants
Starved lubrication poses a critical challenge to hybrid ceramic bearings operating under severe conditions. This study investigates the tribological behavior of carburized 20CrMo steel sliding against Al2O3 ceramic balls and GCr15 steel balls under dry ...
Xu Liu   +5 more
doaj   +1 more source

A review of CO2 catalytic regeneration research based on MEA solution

open access: yesFrontiers in Energy Research, 2023
In recent years, the rapid increase of CO2 emission has caused severe environmental issues. The environmental concern has made how to reduce the carbon emissions become a hot topic. Many scholars and research teams believe that the organic amine chemical
Zhiyuan Yang   +5 more
doaj   +1 more source

Analysis of Marine Diesel Engine Emission Characteristics of Different Power Ranges in China

open access: yesAtmosphere, 2021
In order to accurately assess China’s port air pollution caused by the shipping industry, two main methods can be used to calculate the emissions of ships, including the method based on ship fuel consumption and the method based on ship activities.
Zhongmin Ma   +6 more
semanticscholar   +1 more source

From Green Governance to Biodiversity Strategy: The Role of Environmentally Experienced Directors in Chinese Firms

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang   +2 more
wiley   +1 more source

Effect of Zn additions on the microstructure and mechanical properties of Sn-Babbitt alloys fabricated by arc deposition

open access: yesJournal of Materials Research and Technology, 2021
A deposited layer of Sn-based Babbitt alloys was fabricated on the surface of the steel substrate via the arc deposition technique. The effect of the composition of Zn on the microstructure and mechanical properties has been systematically studied.
Jingyu Zhao   +6 more
doaj   +1 more source

Interval-Valued Intuitionistic Fuzzy Topsis-Based Model For Troubleshooting Marine Diesel Engine Auxiliary System [PDF]

open access: yes, 2017
In this paper, we present an interval-valued Intuitionistic Fuzzy TOPSIS model, which is based on an improved score function for detecting failure in a marine diesel engine auxiliary system, using groups of experts’ opinions to detect the root cause of ...
Aikhuele, Daniel Osezua   +3 more
core   +1 more source

The cavitation in marine diesel engines [PDF]

open access: yesVojnotehnicki glasnik, 2005
This paper -work presents the cavitation arises, causes of its appearing and consequences which it setup on materials. It represents the influence of cavitation on parts of marine Diesel engines cooled by -water, as -well as, influence of cavitation erosion on surface of the cylinder liner cooled by water.
Radosav Nikolic, Zoran Nikolic
openaire   +1 more source

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