Results 21 to 30 of about 19,086 (254)

Diffusion-controlled Combustion [PDF]

, 2001
We devote this brief review to some relevant aspects of diffusion-controlled combustion. After a survey of the conservation equations involved, we shall describe the Burke-Schumann limit, which is applicable when the reaction time at the flame is very short compared with the mixing time.
openaire   +2 more sources

An investigation into the relationship between the formation of thermal cracked components and PM reduction during diesel combustion using water emulsified fuel

Journal of Thermal Science and Technology, 2015
Water-in-diesel emulsion fuel (W/O) operated in diesel engines, shows a significant reduction of particulate matter (PM). In this paper, PM reduction characteristics by thermal decomposition of W/O10 and W/O20 (10vol.% and 20vol.% of water in W/O ...
Hirofumi NOGE, Yoshiyuki KIDOGUCHI, Wira JAZAIR YAHYA, Yoko IMAI, Kazuo TAJIMA   +4 more
doaj   +1 more source

Some Effects of Hydrogen Self-Ignition and Combustion in Supersonic Flow

Eurasian Chemico-Technological Journal, 2014
Results are presented of computational and experimental investigations of the influence of temperature and flow composition on the hydrogen combustion kinetics for a coaxial fuel supersonic flow.
U. Zhapbasbayev, V. Zabaykin, Y. Makashev, A. Tursynbay, B. Urmashev   +4 more
doaj   +1 more source

Pengaruh Penambahan Langkah Kerja terhadap Unjuk Kerja Motor Bakar

Rekayasa Mesin, 2020
The duration of fuel-air diffusion in the 4 stroke combustion engine is relatively short, which is 0.02 seconds at 3000 rpm so that at high rotation the level of homogeneity of the fuel-air mixture becomes low.
Chandra Gunawan, Eko Siswanto, Lilis Yuliati   +2 more
doaj   +1 more source

Influence of carbon dioxide and steam on temperature field formed by inverse diffusion flame of gasified-gas of woody biomass

Nihon Kikai Gakkai ronbunshu, 2018
Partial combustion is applied for tar reduction in the gasified-gas of woody biomass. An inverse diffusion flame was formed in partial-combustion-type gas reformer.
Zhiren BAI, Noriaki NAKATSUKA, Jun HAYASHI, Fumiteru AKAMATSU   +3 more
doaj   +1 more source

An Experimental Investigation on the Combustion and Heat Release Characteristics of an Opposed-Piston Folded-Cranktrain Diesel Engine

Energies, 2015
In opposed-piston folded-cranktrain diesel engines, the relative movement rules of opposed-pistons, combustion chamber components and injector position are different from those of conventional diesel engines.
Fukang Ma, Changlu Zhao, Fujun Zhang, Zhenfeng Zhao, Zhenyu Zhang, Zhaoyi Xie, Hao Wang   +6 more
doaj   +1 more source

Computational Analysis of an Ammonia Combustion System for Future Two-Stroke Low-Speed Marine Engines

Journal of Marine Science and Engineering
Ammonia, being 17.6% hydrogen by mass, is regarded as a hydrogen carrier and carbon-free fuel as long as its production methods rely on renewable energy sources.
Jose R. Serrano, Ricardo Novella, Héctor Climent, Francisco José Arnau, Alejandro Calvo, Lauge Thorsen   +5 more
doaj   +1 more source

Study and Numerical Simulation on Explosion Propagation Characteristics of Lignite Dust [PDF]

E3S Web of Conferences, 2020
In order to reveal the explosion propagation law of lignite dust in 20L spherical explosion test device, the dust diffusion behavior and explosion propagation characteristics of lignite were studied by experiment and numerical simulation. The propagation
Pang Zizheng, Zhu Shunbing, He Yanru
doaj   +1 more source

Reaction and diffusion in turbulent combustion [PDF]

, 1991
The primary objective of the research is to use Direct Numerical Simulations (DNS) to study turbulent non-premixed combustion. In DNS, the fluid mechanical and thermochemical conservation equations are solved by an accurate numerical method, without any averaging or turbulence modeling.
openaire   +3 more sources

Modeling Homogeneous, Stratified, and Diffusion Combustion in Hydrogen SI Engines Using the Wiebe Approach

Energies
The use of hydrogen as a fuel for piston engines enables environmentally friendly and efficient operation. However, several challenges arise in the combustion process, limiting the development of hydrogen engines.
Oleksandr Osetrov, Rainer Haas
doaj   +1 more source