Results 111 to 120 of about 1,514 (209)

Numerical investigation on turbulent flame jet characteristics of ultra-lean H2/air ignited by pre-chamber enrichment strategy

Energy Conversion and Management: X
Pre-chamber enrichment for igniting ultra-lean premixed H2/air is an effective strategy for achieving ultra-low emission and improved fuel economy. This study employed a three-dimensional numerical simulation based on a constant volume combustion chamber
Wenchao Zhu, Xuanrui Zhang, Mingkun Zhang, Shuo Yin, Xianrong Wu, Wuqiang Long, Xiangyu Meng   +6 more
doaj   +1 more source

Cold Gas Spraying of Nickel-Titanium Coatings for Protection Against Cavitation. [PDF]

J Therm Spray Technol, 2021
Mauer G, Rauwald KH, Sohn YJ, Weirich TE.   +3 more
europepmc   +1 more source

Results and status of the NASA aircraft engine emission reduction technology programs [PDF]

The results of an aircraft engine emission reduction study are reviewed in detail. The capability of combustor concepts to produce significantly lower levels of exhaust emissions than present production combustors was evaluated. The development status of
Diehl, L. A., Grobman, J., Jones, R. E., Petrash, D. A.   +3 more
core   +1 more source

The Influence of Pre-Chamber Parameters on the Performance of a Two-Stroke Marine Dual-Fuel Low-Speed Engine

Journal of Marine Science and Engineering
With increasing environmental pollution from ship exhaust emissions and increasingly stringent International Maritime Organization carbon regulations, there is a growing demand for cleaner and lower-carbon fuels and near-zero-emission marine engines ...
Hao Guo, Zhongcheng Wang, Song Zhou, Ming Zhang, Majed Shreka   +4 more
doaj   +1 more source

A new BiofilmChip device for testing biofilm formation and antibiotic susceptibility. [PDF]

NPJ Biofilms Microbiomes, 2021
Blanco-Cabra N, López-Martínez MJ, Arévalo-Jaimes BV, Martin-Gómez MT, Samitier J, Torrents E.   +5 more
europepmc   +1 more source

Experimental Study of Air and EGR Dilution in a Pre-Chamber Spark-Ignited Engine Fueled by Methane

Applied Sciences
Improving the efficiency of spark-ignited (SI) engines while simultaneously reducing emissions remains a critical challenge in meeting global energy demands and increasingly stringent environmental regulations.
Viktor Dilber, Sara Ugrinić, Rudolf Tomić, Darko Kozarac   +3 more
doaj   +1 more source

Compositional Evolution of Individual CoNPs on Co/TiO₂ during CO and Syngas Treatment Resolved through Soft XAS/X-PEEM. [PDF]

ACS Catal, 2023
Qiu C, Odarchenko Y, Meng Q, Dong H, Gonzalez IL, Panchal M, Olalde-Velasco P, Maccherozzi F, Zanetti-Domingues L, Martin-Fernandez ML, Beale AM.   +10 more
europepmc   +1 more source

High Speed Particle Image Velocimetry in a Large Engine Prechamber

Flow, Turbulence and Combustion
AbstractPlanar velocity measurements using the particle image velocimetry technique have been performed at a repetition rate of 10 kHz in the prechamber of a large bore gas engine mounted on a rapid compression machine (RCM), to visualize the velocity fields in the non-reacting gas flow during a compression stroke.
Aravind Ramachandran, Rajat Soni, Markus Roßmann, Marc Klawitter, Clemens Gößnitzer, Jakob Woisetschläger, Anton Tilz, Gerhard Pirker, Andreas Wimmer   +8 more
openaire   +2 more sources

Effect of structural parameters of active pre-chamber on ammonia/hydrogen premixed combustion process: A numerical investigation

Case Studies in Thermal Engineering
The development of zero-carbon fuels is of great significance for reducing carbon emissions. Using an ammonia/hydrogen mixture as fuel, the combustion in engine through an active pre-chamber has a good effect on reducing carbon emissions.
Zhe Kang, Da Peng, Jing Luo, Yang Lv, Lan Li   +4 more
doaj   +1 more source

Assessment of alternative power sources for mobile mining machinery [PDF]

Alternative mobile power sources for mining applications were assessed. A wide variety of heat engines and energy systems was examined as potential alternatives to presently used power systems.
Cairelli, J. E., Evans, D. G., Klann, J. L., Tomazic, W. A.   +3 more
core   +1 more source