Results 41 to 50 of about 4,026,469 (178)

Effect of Co-Axial Flow Velocity on Soot Formation in a Laminar Jet Diffusion Flame under Microgravity

Journal of Thermal Science and Technology, 2007
To examine the effect of low co-axial flow on soot formation in a laminar jet diffusion flame, microgravity experiments have been conducted. The tested co-axial flow velocity range is 0-7.3 cm/s, which is very difficult to provide on the ground because ...
Byoung-Ho JEON, Osamu FUJITA, Yuji NAKAMURA, Hiroyuki ITO   +3 more
doaj   +1 more source

Combustion and soot evolution during engine cold starts: effects of injection timing and pressure in wall-impinging sprays

Case Studies in Thermal Engineering
Wall-impinging spray occurrence increases significantly during cold start operations in heavy-duty diesel engines, particularly with varying injection strategies. Therefore, computational simulations were employed to investigate the above problems.
Zhikun Cao, Cong Liu, Zhengyang Cui, Zhi Geng, Han Wu, Guixian Zhang, Chiafon Lee, Junfen Li   +7 more
doaj   +1 more source

Investigation of soot precursor molecules during inception by acetylene pyrolysis using reactive molecular dynamics [PDF]

Aerosol Research
Soot inception by acetylene pyrolysis at 1350–1800 K is investigated using reactive molecular dynamics. The composition and chemical structure of soot precursor molecules formed during inception are elucidated.
A. Ganguly, K. M. Mukut, S. Roy, G. Kelesidis, E. Goudeli   +4 more
doaj   +1 more source

SOOT PARTICULATE FORMATION AND CHARACTERIZATION IN COMBUSTION

Transactions of the Canadian Society for Mechanical Engineering, 1999
The subject of soot formation in combustion is being extensively studied to decipher the relevant mechanisms. Despite considerable progress made in understanding some to the features of soot formation, we still do not have sufficient details of the formation mechanisms to be able to calculate soot in the flame of a given hydrocarbon fuel from first ...
openaire   +3 more sources

Oxygen driven soot formation

Proceedings of the Combustion Institute, 2017
Abstract The emission standards of combustion have been steadily reduced in recent years, and a large research effort has been focused on lowering the emissions of hydrocarbons and particulate matter. Addition of oxygenates to fuel reduces these pollutants.
P. Elvati, V.T. Dillstrom, A. Violi
openaire   +2 more sources

A comparison of experimental results of soot production in laminar premixed flames

Open Engineering, 2015
Soot emission has been the focus of numerous studies due to the numerous applications in industry, as well as the harmful effects caused to the environment.
Caetano Nattan R., Soares Diego, Nunes Roger P., Pereira Fernando M., Smith Schneider Paulo, Vielmo Horácio A., van der Laan Flávio Tadeu   +6 more
doaj   +1 more source

Detailed kinetic modeling of soot formation at lightly sooting conditions

, 2017
Soot particles formed in combustion processes are well-known for their negative effects, but their formation is still elusive and challenging. In particular, the main chemical and physical pathways are not fully understood. It is important to characterize soot not only in terms of mass yield but also to accurately characterize number density and ...
W. Pejpichestakul, A. Frassoldati, A. Parente, T. Faravelli   +3 more
openaire   +3 more sources

Evaluation of soot particles from different-sized rapeseed oil flames: Scientific focus on a traditional Japanese craft, Nara sumi

Carbon Trends
Nara sumi is a traditional Japanese craft, the skills and wisdom of which have been handed down through generations by artisans. Soot is a principal material determining sumi ink quality.
Akinori Ren, Shoko Kume, Manabu Fujiwara, Sumiaki Nakano   +3 more
doaj   +1 more source

Soot and Flame Structures in Turbulent Partially Premixed Jet Flames of Pre-Evaporated Diesel Surrogates with Admixture of OME_n

Fluids
In this study, the soot formation and oxidation processes in different turbulent, pre-evaporated and partially premixed diesel surrogate flames are experimentally investigated.
Steffen Walther, Tao Li, Dirk Geyer, Andreas Dreizler, Benjamin Böhm   +4 more
doaj   +1 more source

Numerical Analysis of Soot Dynamics in C₃H₈ Oxy-Combustion with CO₂ and H₂O

Energies
Oxygen-enriched combustion is increasingly recognized as a viable approach for clean energy production and carbon capture, offering substantial benefits for boosting combustion efficiency and mitigating pollutant emissions, which makes it widely adopted ...
Yue Xin, Bowen Liang, Yindi Zhang, Mengting Si, Jinisper Joseph Cunatt   +4 more
doaj   +1 more source