Results 31 to 40 of about 5,414 (232)

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep 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, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

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

Energies, 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, Suresh Sampath, Pericles Pilidis   +2 more
doaj   +1 more source

A Marine Engineer's View on the Diesel Engines

Journal of Zosen Kiokai, 1926
1. The comparison between the steam engines and diesel engines. Fuel, coal and liquid, and their management. Reciplocators and turbines.2. The view on the management. The various valves of two and four cycle engines, and troubles for their management and maintenance.
openaire   +2 more sources

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

EcoEnergy, 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, Tamer Kamel, Sarah Fear, Lee J. Durndell   +3 more
wiley   +1 more source

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

Lubricants
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, Linye Yu, Ming Zhong, Jin Qian, Jiapeng Dai, Yongan Min   +5 more
doaj   +1 more source

A review of CO2 catalytic regeneration research based on MEA solution

Frontiers 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, Yuhang Shen, Haoran Yang, Hui Yi, Hao Guo, Xiaoliang Zhang   +5 more
doaj   +1 more source

Photothermal–Magnetocaloric Coupled Evaporators for Actively Adjustable Water Evaporation and Oil–Water Purification in Complex Environments

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A photothermal–magnetocaloric coupled aerogel evaporator is developed for actively adjustable water evaporation in complex environments. Magnetocaloric heating provides active energy compensation under low‐light conditions and disrupts interfacial hydrogen‐bond networks to promote evaporation.
Jingbo He, Dan Yang, Chunyu Yang, Ruihan Guo, Mengshu Xu, Dongxue Wang, Zhuoran Yang, Jian Huang, Wei Guo   +8 more
wiley   +1 more source

Diesel engine heat release analysis by using newly defined dimensionless parameters [PDF]

, 2014
This thesis was submitted for the degree of Doctor of Philosphy and awarded by Brunel UniversityDiesel engine combustion has been studied during the last decades by researchers in terms of improving the performance of the engine.
Abbaszadehmosayebi, Gholamreza
core  

Integration of a mean-torque diesel engine model into a hardware-in-the-loop shipboard network simulation

, 2010
This paper describes the creation of a hardware-in-the-loop demonstrator for use in evaluating network architecture and control concepts for marine electrical systems, as well as specific items of equipment.
Hill, J.E., Burt, G. M., J.E. Hill, Elders, I. M., I.M. Elders, A.J. Roscoe, Roscoe, A. J., Burt, G.M, G.M. Burt   +8 more
core   +1 more source

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

Journal 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, Kai Sun, Gang Liang, Congcong Xu, Jiahui Zhao, Feng Xue, Jian Zhou   +6 more
doaj   +1 more source