Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Effect of Oxygenated Additives on Soot Precursor Formation
Author: The Effect of Oxygenated Additives on Soot Precursor Formation
Author: Lauretta RubinoPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
A counter-flow propane/air diffusion flame ([straight phi] = 1.79) is used for a fundamental analysis of the effects of oxygenated additives on soot precursor formation. Experiments are conducted at atmospheric pressure using a quartz micro-probe for sampling and Gas Chromatography for gas sample analysis. C1-C6 species have been identified and measured. The oxygenated additives dimethyl carbonate (DMC) and ethanol are added to the fuel stream keeping the total volumetric flow rate constant Results show 10 vol% DMC significantly reduces acetylene, benzene and other flame pyrolysis products. Ethanol addition (10 vol%) shows instead more modest reductions. Peak acetylene and benzene levels decrease as the additive dosage increases for both ethanol and DMC. The additive's effect on adiabatic flame temperature and fuel stream carbon content does not correlate significantly with acetylene levels. However, there does appear to be a linear relationship between oxygen content and acetylene concentrations as well as C-C content and acetylene concentrations.
Investigations into the Combustion Kinetics of Several Novel Oxygenated Fuels
Author: Wenyu SunPublisher: Springer Nature
ISBN: 9819945100
Category : Technology & Engineering
Languages : en
Pages : 178
Book Description
In this thesis, attention was paid to several novel oxygenated fuels—carbonates, polyethers and ketones. Combustion kinetic investigations were performed for typical representative compounds, including dimethyl carbonate, diethyl carbonate, cyclopentanone, 3-pentanone, 1,2-dimethoxyethane and dimethoxymethane. For experiments, suitable diagnostic techniques were used to measure the detailed speciation information of the target fuels under different conditions. For kinetic modeling, rate coefficients for crucial elementary reactions were obtained through high-level theoretical calculations. Based on that, validated kinetic models with good predictive performances were developed. On the basis of experimental measurements and model interpretations, this work highlighted two important combustion characteristics regarding the practical use: the pollutant formation and the ignition performance. Besides, the correlation between oxygen-containing functional groups and the aforementioned combustion characteristics was revealed. To reveal the potential interactions between the reaction networks of oxygenated additives and the hydrocarbon base fuels during combustion. Chemical structures of laminar premixed flames fueled by binary fuels were measured, and by changing the initial fuel compositions, the addition effects of the oxygenates on the fuel consumption and pollutant formation behaviors were explored. It was found that complicated chemical interactions do not exist in the reaction networks under the investigated conditions.
The Effects of Metal Additives on Soot Formation
Author: Alan S. FeitelbergSoot Formation in Combustion
Author: Henning BockhornPublisher: Springer Science & Business Media
ISBN: 3642851673
Category : Science
Languages : en
Pages : 595
Book Description
Soot Formation in Combustion represents an up-to-date overview. The contributions trace back to the 1991 Heidelberg symposium entitled "Mechanism and Models of Soot Formation" and have all been reedited by Prof. Bockhorn in close contact with the original authors. The book gives an easy introduction to the field for newcomers, and provides detailed treatments for the specialists. The following list of contents illustrates the topics under review:
The Effect of Additives on Soot Formation in Flames
Author: David Griffith EvansPublisher:
ISBN:
Category : Acetylene
Languages : en
Pages : 0
Book Description
Chemical Mechanistic Approaches for the Suppression of Soot Formation in the Combustion of High Energy Density Fuels
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 54
Book Description
Significant advantages can be gained by the use of high energy density fuels in volume limited applications. However, excessive soot formation that accompanies the combustion of these fuels presently limits their application. Fuel additive approaches prove attractive as they require minimal modifications to already existing equipment. In the present study, a variety of flame configurations were used to study the additive effects on soot formation. Through tests conducted on laminar diffusion flames carbon disulfide (CS2) and methanol (CH3OH) were found to be the most effective soot suppressants. Chemical interaction by either additive was found to far surpass the physical influences. However, the exact nature of the chemical action could not be established with the current set of experiments. Additionally, both of these additives were found to reduce soot formation in at least one high energy density fuel - quadricyclane (C7H8). To further validate this approach, studies were conducted using droplet flames and high-pressure spray flames.
Oxygen-Enhanced Combustion
Author: Charles E. Baukal Jr.Publisher: CRC Press
ISBN: 1439862303
Category : Science
Languages : en
Pages : 779
Book Description
Combustion technology has traditionally been dominated by air/fuel combustion. However, two developments have increased the significance of oxygen-enhanced combustion-new technologies that produce oxygen less expensively and the increased importance of environmental regulations. Advantages of oxygen-enhanced combustion include less pollutant emissi
The Effect of Additives on Soot Formation in Flames
Author: David Griffith EvansPublisher:
ISBN:
Category : Acetylene
Languages : en
Pages :
Book Description
Advanced Biofuels
Author: Kalam Abul AzadPublisher: Woodhead Publishing
ISBN: 0081027923
Category : Business & Economics
Languages : en
Pages : 502
Book Description
Advanced Biofuels: Applications, Technologies, and Environmental Sustainability presents recent developments and applications of biofuels in the field of internal combustion engines, with a primary focus on the recent approaches of biodiesel applications, low emission alternative fuels, and environmental sustainability. Editors Dr. Azad and Dr. Rasul, along with their team of expert contributors, combine a collection of extensive experimental investigations on engine performance and emissions and combustion phenomena using different types of oxygenated fuel with in-depth research on fuel applications, an analysis of available technologies and resources, energy efficiency improvement methods, and applications of oxygenated fuel for the sustainable environment. Academics, researchers, engineers and technologists will develop a greater understanding of the relevant concepts and solutions to the global issues related to achieving alternative energy application for future energy security, as well as environmental sustainability in medium and large-scale industries. Fills a gap in the literature on alternative fuel applications with in-depth research and experimental investigations of different approaches, technologies and applications Considers the important issue of sustainability using case studies to deepen understanding Includes energy security within various industries, including aviation and transport