Showing papers in "Progress in Energy and Combustion Science in 2009"

TL;DR: In this paper, five types of models applied to HCCI engine modelling are discussed in the present paper, and specific strategies for diesel-fuelled, gasoline-fined, and other alternative fuelled combustion are also discussed.

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.

TL;DR: A comprehensive overview of hydrogen-fueled internal combustion engines (H 2 ICEs) can be found in this paper, where the authors discuss the fundamentals of the combustion of hydrogen, details on the different mixture formation strategies and their emissions characteristics, measures to convert existing vehicles, dedicated hydrogen engine features, a state of the art on increasing power output and efficiency while controlling emissions and modeling.

TL;DR: A review of metal-based reactive nanomaterials can be found in this paper, where some potential directions for the future research are discussed and some potential application areas are explored.

TL;DR: In this paper, the state of the art of rate laws and kinetic constants for the gasification, with carbon dioxide and steam, and the combustion of chars produced from lignocellulosic fuels, including a brief outline about yields and composition of pyrolysis products.

TL;DR: The need and prospect of incorporating realistic fuel chemistry in large-scale simulations of combustion phenomena and combustor performance are reviewed in this paper, where skeletal reduction especially through directed relation graph, time-scale reduction based on the concepts of quasi-steady species enabled through computational singular perturbation, the lumping of isomers and of species with similar diffusivities; on-the-fly stiffness removal; the relative merits of implicit versus explicit solvers; and computation cost minimization achieved through tabulation and the judicious re-sequencing of the computational steps in arithmetic evaluations.

TL;DR: There has been much recent progress in the area of surrogate fuels for diesel as discussed by the authors, however, major research gaps remain, and no detailed chemical kinetic models or experimental investigations are available for such compounds.

TL;DR: In this article, the initiation of turbulent non-premixed combustion of gaseous fuels through autoignition and through spark ignition is reviewed, motivated by the increasing relevance of these phenomena for new combustion technologies.

TL;DR: In this paper, the authors provide an overview of the fluid mechanics of the non-reacting and reacting wake flow of bluff body wake flow and describe the phenomenology of the blowoff process.

TL;DR: In this paper, the authors focus on the mechanisms that govern the formation, chlorination, dechlorination and destruction of polychlorinated dibenzo-p-dioxins (PCDD/Fs) and suggest that further progress in the field needs to be facilitated by development of reliable mechanistic models for catalytic pathways.

TL;DR: In this article, preliminary energy and exergy efficiency analyses are performed for a photovoltaic-hydrogen/fuel cell hybrid energy system in Denizli, Turkey, and three different energy demand paths are considered.

TL;DR: A review of molecular-beam mass spectrometry of premixed, laminar, low-pressure flat flames has been provided in this paper, focusing on critical aspects of the experimental approach including probe sampling effects, different ionization processes, and mass separation procedures.

TL;DR: In this paper, the authors present a review of available techniques for controlling both the emission of nitrogen oxides (NOx) to the atmosphere and the content of NOx in the captured carbon dioxide.

TL;DR: In this article, the authors present a comprehensive review of the state-of-the-art studies of mass transport of different species, including the reactants (methanol, oxygen and water) and the products (water and carbon dioxide) in DMFCs.

TL;DR: The post combustion capture (PCC) method eliminates the need for substantial modifications to existing combustion processes and facilities; hence, it provides a means for near-term CO2 capture for new and existing stationary fossil fuel-fired power plants as discussed by the authors.

TL;DR: In this paper, the authors defined the process of removing coal ash from the heat transfer surfaces as a process of shedding, which can be then referred to as artificial shedding, where both mechanical and thermal shock devices for shedding can be implemented within into the boiler, and the mechanism that will dominate depends on the ash characteristics and the boiler operation.

TL;DR: In this article, a cold soak filterability performance test was developed to identify fuels that may have a propensity to clog filters if exposed to long-term storage in cold weather.

TL;DR: In this article, the authors demonstrate the concept of applying learning curves in a consistent manner to performance as well as cost variables in order to assess the future development of power plants with CO2 capture.

TL;DR: In this paper, three principal theories for the stabilization of lifted flames on turbulent jets of fuel are reviewed in the light of the most recent flame imaging experiments in the literature, and data from a variety of fluid dynamic sources are assessed to yield the governing parameters for mean flow, turbulence and mixture fraction.

TL;DR: In this article, the authors provide a comprehensive picture of the global scenario of research and developments in combustion of liquid fuels within a porous medium that enable a researcher to determine the direction of further investigation.

TL;DR: A review of studies dealing with the extinction of PPFs, which represent a broad family of flames, including double, triple (tribrachial), and edge flames, is provided in this paper.

TL;DR: In this article, a review of laser-based spectroscopy methods for combustion diagnostics is presented, and the complementarity of these methods is also discussed for the validation of chemical mechanisms in well defined, low-pressure flat flames.