Author
Vincent McDonell
Bio: Vincent McDonell is an academic researcher from University of California, Irvine. The author has contributed to research in topics: Combustion & Combustor. The author has an hindex of 25, co-authored 134 publications receiving 2040 citations.
Topics: Combustion, Combustor, Natural gas, Combustion chamber, Flashback
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the main economic, energy-efficiency, and environmental impacts of the integration of three types of advanced distributed generation technologies (high-temperature fuel cells, micro-turbines, and photovoltaic solar panels) into four types of representative generic commercial building templates (small office building, medium-office building, hospital, and college/school) in southern California (e.g., mild climate), using eQUEST as energy simulation tool.
115 citations
TL;DR: In this article, the authors present new data for synthesis gas ignition under practical conditions that, when used in conjunction with an earlier set of data, show considerable disagreement with what is predicted by state-of-the-art chemical kinetics models.
114 citations
TL;DR: Wood et al. as discussed by the authors used interferometric measurements of droplet size and droplet velocity to establish a fuel of controlled composition for modeling, and for the study of fuel property and chemical composition effects in the combustion of JP-4 fuels.
Abstract: Author(s): Wood, CP; Mc donell, VG; Smith, RA; Samuelsen, GS | Abstract: A surrogate fuel comprised of 14 pure hydrocarbons is formulated based on the distillation curve and compound class composition of a petroleum-derived JP-4. The goal is to establish a fuel of controlled composition for modeling, and for the study of fuel property and chemical composition effects in the combustion of JP-4 fuels. Spatially resolved interferometric measurements of droplet size and droplet velocity are obtained and compared for both the petroleum and surrogate JP-4 in a nonreacting spray chamber. Measurements are also obtained for a high aromatic JP-5 of purposefully disparate properties. The performance of these three fuels is then compared in a swirl-stabilized, spray-atomized model laboratory combustor where in-flame measurements of velocity and temperature are acquired and compared. The nonreacting measurements of atomization quality establish that the atomization characteristics of the petroleum and surrogate JP-4 are identical, whereas the atomization performance of the JP-5 is significantly different. Under reacting conditions, substantial differences between the JP-4 and JP-5 are observed in both the velocity and thermal fields, whereas the surrogate, in contrast, yields an identical velocity and thermal field to that of the petroleum JP-4. © 1989, American Institute of Aeronautics and Astronautics, Inc., All rights reserved.
95 citations
TL;DR: Mostafa et al. as mentioned in this paper combined experimental/analytical investigation is being conducted to study the interaction of particles and turbulent fluid flowfields under a wide range of test conditions, and a well-defined data set suitable for the validation of two-phase flow models was obtained by using a two-component phase Doppler technique.
Abstract: Author(s): Mostafa, AA; Mongia, HC; McDonell, VG; Samuelsen, GS | Abstract: A combined experimental/analytical investigation is being conducted to study the interaction of particles and turbulent fluid flowfields under a wide range of test conditions. As a first step, the developing region of an unconfined axisymmetric turbulent jet with and without glass beads of 105 μm diam (d) has been addressed for two mass loading ratios, LR = 0.2 and 1.0. A well-defined data set suitable for the validation of two-phase flow models was obtained by using a two-component phase Doppler technique. The theoretical calculations, based on a stochastic Lagrangian treatment along with a two-equation turbulence model for two-phase flows, yield reasonable and encouraging agreement with the measurements. © 1989 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.
94 citations
TL;DR: In this article, a representative cooktop burner is selected to study the influence of hydrogen addition on the combustion and cooking performance of a domestic cooktop appliance, and the experimental results show that the combustion performance of the cooktop is not significantly affected with up to about 15% hydrogen addition by volume, which shows the feasibility of utilizing hydrogen on existing cooking appliances without any modification.
77 citations
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Book•
01 Dec 1988
TL;DR: In this paper, the basic processes in Atomization are discussed, and the drop size distributions of sprays are discussed.Preface 1.General Considerations 2.Basic Processes of Atomization 3.Drop Size Distributions of Sprays 4.Atomizers 5.Flow in Atomizers 6.AtOMizer Performance 7.External Spray Charcteristics 8.Drop Evaporation 9.Drop Sizing Methods Index
Abstract: Preface 1.General Considerations 2.Basic Processes in Atomization 3.Drop Size Distributions of Sprays 4.Atomizers 5.Flow in Atomizers 6.Atomizer Performance 7.External Spray Charcteristics 8.Drop Evaporation 9.Drop Sizing Methods Index
1,214 citations
TL;DR: A comprehensive review of the advances made over the past two decades in this area is provided in this article, where various swirl injector configurations and related flow characteristics, including vortex breakdown, precessing vortex core, large-scale coherent structures, and liquid fuel atomization and spray formation are discussed.
1,048 citations
Journal Article•
793 citations
TL;DR: Some characteristic aspects of the chemical pathways in the combustion of prototypical representatives of potential biofuels are highlighted, which focus on the decomposition and oxidation mechanisms and the formation of undesired, harmful, or toxic emissions.
Abstract: Biofuels, such as bio-ethanol, bio-butanol, and biodiesel, are of increasing interest as alternatives to petroleum-based transportation fuels because they offer the long-term promise of fuel-source regenerability and reduced climatic impact. Current discussions emphasize the processes to make such alternative fuels and fuel additives, the compatibility of these substances with current fuel-delivery infrastructure and engine performance, and the competition between biofuel and food production. However, the combustion chemistry of the compounds that constitute typical biofuels, including alcohols, ethers, and esters, has not received similar public attention. Herein we highlight some characteristic aspects of the chemical pathways in the combustion of prototypical representatives of potential biofuels. The discussion focuses on the decomposition and oxidation mechanisms and the formation of undesired, harmful, or toxic emissions, with an emphasis on transportation fuels. New insights into the vastly diverse and complex chemical reaction networks of biofuel combustion are enabled by recent experimental investigations and complementary combustion modeling. Understanding key elements of this chemistry is an important step towards the intelligent selection of next-generation alternative fuels.
596 citations
TL;DR: Probability density function (PDF) methods have been widely used for modeling chemically reacting turbulent flows as discussed by the authors, where one models and solves an equation that governs the evolution of the one-point, one-time PDF for a set of variables that determines the local thermochemical and/or hydrodynamic state of a reacting system.
572 citations