Showing papers in "Progress in Energy and Combustion Science in 1994"

TL;DR: An overview of recent developments in laser diagnostic methods for the quantitative measurement of trace species concentrations and, in conjunction, of temperature in combustion systems is given in this article, where typical applications and discusses advantages and limitations of laser techniques including laser absorption, linear, saturated, predissociative and multi-photon-excited laser-induced fluorescence (LIF), resonanceenhanced multiphoton ionization (REMPI), electronically resonant coherent anti-Stokes Raman scattering (resonance CARS), degenerate four-wave mixing (DFWM) and amplified spontaneous

TL;DR: In this paper, the fate of several trace elements in the thermal conversion of coal has been investigated, assuming global equilibrium and using an in-house database and a Fortran-77 computer code for the calculations.

TL;DR: In this paper, a comprehensive literature search and a series of shock-tube experiments were undertaken to determine the ignition delay times for mixtures of methane with ethane, propane or butane, and for a typical natural gas fuel.

TL;DR: In this article, the authors discuss the current understanding of coal and coal mine waste dumps along with the status of a number of numerical models developed to predict coal self-heating behavior.

TL;DR: In this article, the authors consider the opportunities for enhanced fundamental combustion understanding from experiments where effects of buoyancy are eliminated, and the new challenges of fire safety considerations in non-buoyant (spacecraft) environments.

TL;DR: In this paper, the authors show that the degree of char devolatilization has a profound influence on both the yield of N2O during char oxidation, and on the apparent mechanism.

TL;DR: A review of rotating flow in premixed spark-ignition engines and its effects on turbulence generation and flame propagation can be found in this article, where the mean velocity and turbulence fields associated with these rotational motions are reviewed, as well as the mechanisms for decay, generation, transport and enhancement of in-cylinder turbulence.

TL;DR: A review of modeling and experiments of the ignition and flame spread over liquid fuel pools for separate regimes defined by the initial pool temperature relative to the fuel flash point is given in this paper.

TL;DR: In this article, the status and the development of fluidized-bed technology in relation to the disposal of the different types of wastes in an environmentally acceptable manner are discussed and several of the commercial and pilot-plant fluidized bed incinerators have been briefly described and their findings reported.

TL;DR: In this paper, a comprehensive review on the interactive transport processes in the gasification and combustion of a cloud of drops and solid particles is presented, where the authors compare results from different techniques and between theory and experiment.

TL;DR: In this paper, the geometrical significance in excitation of group vaporization/combustion modes is discussed and a criterion for the onset of group combustion is expressible in the form of a local relationship between the ratio of droplet separation distance to droplet radius, l = ( a 0 3 n ) − 1 3, and the unsteadiness parameter for single droplet combustion.

TL;DR: In this article, a review of recent experimental findings of fire spread phenomena is presented, focusing on the importance of observation in experiments, which is the source of imagination and successful modeling.

TL;DR: The concerns about global warming and the California requirements for zero emission vehicles have rekindled the interest in hydrogen as a fuel for passenger vehicles as discussed by the authors, and the present assessment concludes that hydrogen will not be used as fuel for personal vehicles before the year 2020, taking into account the developments since then and using as criteria total primary energy consumption and emissions of greenhouse gases.