Showing papers in "Progress in Energy and Combustion Science in 1997"

TL;DR: In this article, a special form of combustion, called flameless oxidation, is presented, where temperature peaks can be avoided at flameless oxidations, and thermal NO-formation is largely suppressed, even at very high air preheat temperatures.

TL;DR: In this paper, three types of models are divided up into three classes: empirical, semi-empirical and detailed, and the three classes have demonstrated success in predicting soot concentrations.

TL;DR: In this paper, the potential of catalytic systems in automobile emission control is discussed, and a review of the catalytic technology applicable in each case, the operating principles and performance characteristics, durability aspects and considerations regarding the interactions between catalyst performance and engine management are presented.

TL;DR: In this article, the authors reviewed and presented extensive experimental data on the droplet collision process for both water and fuel droplet collisions, and an effort was made to relate the existing findings to a unified description of collisional droplet behavior.

TL;DR: In this article, the use of laser induced fluorescence spectroscopy (LIF) for making measurements in the combustion environment is described and some background in molecular structure, spectroscopic concepts, thermodynamics and combustion chemistry is first presented.

TL;DR: In this article, the authors review progress on alternative ignition systems that supply higher energy sparks and sparks where the energy is more efficiently transferred to the gas mixture, including high energy breakdown ignition systems, plasma jet and rail igniters.

TL;DR: In this paper, the formation, agglomeration and properties of coal-derived soot, including pyrolysis experiments and combustion experiments, are reviewed, as well as the types of experiments performed, the soot yields obtained, the size of the coal particles, the optical properties, the relationship between coal derived soot and soot from simple hydrocarbons, and attempts to model soot in coal flames.

TL;DR: A review of the history of NOx control implementation over this time period, with an emphasis on the role that research has played on NOX control technology, development and implementation is presented in this paper.

TL;DR: In this paper, an ash deposition submodel, which includes the effects of both ash chemistry and operating conditions on slagging deposits, has been incorporated into the comprehensive combustion code, PCGC-3.

TL;DR: In this paper, the influence of burner operating conditions, burner geometry and fuel parameters on the formation of nitrogen oxide during combustion of pulverized coal is discussed. But, since coal combustion and flame aerodynamics have been reviewed earlier, these phenomena are only treated briefly.

TL;DR: In this article, a review of spray structures in counter-flowing streams, spray counterflowing diffusion flames, spray two-stage flames in counterflow configurations and spray combustion in jets impinging on surfaces is discussed.

TL;DR: The Advanced Combustion Engineering Research Center (ACERC) at Brigham Young University and the University of Utah, in cooperation with other universities, 37 industrial members and six governmental members, has marked a decade of combustion research.

TL;DR: In this paper, the influence of the Gaussian intensity distribution of the incident laser beams on sizing measurements by phase-Doppler velocimetry has been investigated using geometrical optics approximation, considering the interference between contributions from reflection at the external surface of a droplet and those refracted after one and two reflections at the inner surface of the droplet.