Results 71 to 80 of about 1,373,761 (261)

Combustion of Fractal Distributions [PDF]

open access: yesarXiv, 1994
The advantages of introducing a fractal viewpoint in the field of combustion is emphasized. It is shown that the condition for perfect combustion of a collection of drops is the self-similarity of the distribution.
arxiv  

Chaotic Combustion in Spark Ignition Engines [PDF]

open access: yes, 2002
We analyse the combustion process in a spark ignition engine using the experimental data of an internal pressure during the combustion process and show that the system can be driven to chaotic behaviour. Our conclusion is based on the observation of unperiodicity in the time series, suitable stroboscopic maps and a complex structure of a reconstructed ...
arxiv   +1 more source

European Shock-Tube for High-Enthalpy Research Combustion Driver Qualification [PDF]

open access: yesarXiv, 2023
The ESTHER shock tube is a new state-of-the-art facility at Instituto Superior T\'ecnico designed to support future ESA planetary exploration missions. Its driver is a high-pressure combustion chamber using a mixture of He:H2:O2 ignited by a high-power Nd:YAG laser.
arxiv  

Free Energy and Internal Combustion Engine Cycles [PDF]

open access: yesarXiv, 2012
The performance of one type (Carnot) of Internal Combustion Engine (ICE) cycle is analyzed within the framework of thermodynamic free energies. ICE performance is different from that of an External Combustion Engine (ECE) which is dictated by Carnot's rule.
arxiv  

Effects of Electric Fields on the Combustion Characteristics of Lean Burn Methane-Air Mixtures

open access: yesEnergies, 2015
In this work, the effects of the electric fields on the flame propagation and combustion characteristics of lean premixed methane–air mixtures were experimentally investigated in a constant volume chamber.
Jianfeng Fang   +4 more
doaj   +1 more source

Kinetics of Combustion in the Layered Ni-Al System [PDF]

open access: yesCombustion Science and Technology, 169:1-24, 2001, 2001
Theoretical analysis and experimental results on the combustion in the Ni-Al layered system are presented. Combustion wave temperature and velocity were measured and microstructural and compositional determinations were made. The latter were made on products of complete combustion and on quenched samples using metallographic and electron microprobe ...
arxiv  

Experimental verification of computer spray-combustion models [PDF]

open access: yes, 1973
Analytical model formulation, representing performance of spray-combustion device, is based on understanding of atomization, mixing, vaporization, and combustion which occurs in device.
Clayton, R. M.   +2 more
core   +1 more source

Photodegradation of organic pollutants in aqueous solutions caused by Fe(OH)aq2+ photolysis: Evidence of OH radical formation

open access: yesInternational Journal of Photoenergy, 2004
Photochemistry of Fe(III) hydroxocomplexes has a great interest because of possibility of hydroxyl radical formation at the primary photochemical step.
I. P. Pozdnyakov   +6 more
doaj   +1 more source

Cycle-to-Cycle Fluctuations of Burned Fuel Mass in Spark Ignition Combustion Engines [PDF]

open access: yesarXiv, 2003
We examine a simple, fuel-air, model of combustion in spark ignition (si) engine with indirect injection. In our two fluid model, variations of fuel mass burned in cycle sequences appear due to stochastic fluctuations of a fuel feed amount. We have shown that a small amplitude of these fluctuations affects considerably the stability of a combustion ...
arxiv  

Local heat flux measurement technique for internal combustion engines [PDF]

open access: yes, 2017
The heat transfer from the combustion gases to the cylinder wall affects the efficiency, emissions and power output of an internal combustion engine. Measuring the heat transfer requires a heat flux sensor inside the combustion chamber that has a short ...
Ameel, Bernd   +5 more
core   +1 more source

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