In this investigation, the structure of one-dimensional flame propagation in uniform cloud of volatile organic particles has been analyzed in which the structure of flame is divided into three zones. The first zone is preheat zone which is divided into three subzones itself. In first subzone (heating), particle cloud heated until the moisty particles reach to vapor vaporization temperature. In ...

Abstract The influence of flow configuration on flame-wall interaction (FWI) premixed flames within turbulent boundary layers has been investigated. Direct numerical simulations (DNS) two different configurations for interacting with chemically inert isothermal and adiabatic walls in fully developed have performed. first is an oblique wall (OWI) a V-flame channel the second head-on (HOI) planar...

The influence of thermal wall boundary conditions on the behaviour scalar statistics during flame-wall interaction (FWI) premixed flames within turbulent layers has been investigated. Three-dimensional direct numerical simulations (DNS) two different flow configurations for interacting with chemically inert isothermal as well adiabatic walls in fully developed have performed. first configuratio...

We describe flame propagation in a channel subject to a Poiseuille flow, within the thermo-diffusive approximation and an adiabatic context. The two-dimensional flame fronts addressed may be either assisted or opposed by the flow. The problem is characterized by two parameters, the intensity of the flow u0 and the spatial scale e. The total burning rate and the propagation speed are determined ...

The stabilisation of a lifted flame issuing in a vitiated co-flow has been studied both experimentally and numerically with the objective of resolving whether the dominant mechanism is due to auto-ignition or to premixed flame propagation. A key parameter used in both studies is the lift-off height, LH defined at the first location of occurrence of heat release downstream of jet exit plane. Exp...

A new analytical study performed to investigate the effect of the temperature difference between gas and particle in propagation of the spherical flames. The combustible system is containing uniformly distributed volatile fuel particles in an oxidizing gas (Air) mixture. The model includes evaporation of volatile matter of dust particles to known gaseous fuel (methane) and the single-stage reac...

We report three-dimensional index-of-refraction measurements in a methane-air slot diffusion flame and a methane-air slot subsonic jet using beam-deflection optical tomography. The horizontal and vertical spatial resolutions are 0.26 and 0.635 mm, respectively. The peak temperature is calculated from the index-of-refraction map for the flame and compared with thermocouple temperature measurements.

Spatially resolved temperature measurements in a CH(4)-air flame have been achieved using two-line laser-induced fluorescence from indium atoms seeded to the flame.

Hydrogen plays a key role in the transition to carbon-free economy. Substitution of hydrocarbon fuel with hydrogen gas turbine engines and power plants is an area growing interest. This review discusses combustion features adding as well its influence on characteristics chambers compared methane. The paper presents studies into pure or methane methane–hydrogen mixtures various contents. shows s...

In this study, adiabatic temperature rise tests depending on binder type and adiabatic specimen volume were performed, and the maximum adiabatic temperature rises and the reaction factors for each mix proportion were analyzed and suggested. The results indicated that the early strength low heat blended cement mixture had the lowest maximum adiabatic temperature rise (Q∞) and the ternary blended...