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Showing 1 to 9 of 9 for “"flammability limit"”.
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Improved Venting for Flammability Limit Testing Using ASTM E681 Apparatus
The literature on the determination of flammability limits was reviewed and experts on the ASTM E681 standard were interviewed to identify new means of improving the reproducibility of the ASTM E681 test. Venting was identified as a variable of flammability limits not yet addressed. Limitations of …
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Experimental and Theoretical Investigation of Flame Propagation Through Compositionally Stratified Methane -Air Mixtures
… gradients. A significant extension of the lean flammability limit (ϕ≈0.4) was observed. Theoretical analysis was performed in order to rationalize the experimental results of the flame speed increase and was able to correctly predict the results. For a flame propagating from …
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Combustion of Coal Dust-Air Mixtures (Flammability, Radiation, Volatile)
Coal dust flammability studies are essential in order to evaluate propagation limit concentrations and the fundamental burning velocity as a function of dust concentration. This work presents such data for Pittsburgh seam bituminous coal dust using a relatively large scale horizontal flammability …
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Design and Evaluation of a Lean-Premixed Hydrogen Injector with Tangential Entry in a Sector Combustor
… of nitrogen (NOx). However due to the lower flammability limit of hydrogen, it can be burned at much lower equivalence ratios that typical hydrocarbon fuels, and thus reducing the emissions of NOx. Multiple efforts have been made for the design of premixing injectors for gaseous hydrocarbon …
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Development of a 3D Printer for Oxide-free Aluminum Transportation
… high costs due to its low density. The low flammability limit also makes it dangerous to transport. Aluminum has been proposed as an alternative energy carrier for its high density and ability to be stored at ambient conditions, allowing for cheaper transportation. Hydrogen can be produced …
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Design and operational characteristics of a gasification-combustion process: flammability model
… drying, space heating, and power generation. Flammability limit and chemical equilibrium theory were used to model the flammable range of the gasification product in a combustion chamber. The model predicted an adiabatic flammable zone within an equivalence ratio of 0.56 to 1.67 for oak with …
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Homogeneous and stratified vented gas explosions
… recorded in stratified mixtures towards the lean flammability limit was in many cases much higher than the fuel concentration would normally suggest. Stratified mixtures with global equivalence ratio around stoichiometric produced significantly lower pressures than their homogeneous equivalents. …
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Syngas production from heavy liquid fuel reforming in inert porous media
… products of the reaction. In order to extend the flammability limit of hydrocarbon/air mixtures, the rich combustion experiments have been carried out in a two-layer porous medium combustor, which stabilises a flame at the matrix interface and recirculates the enthalpy of the hot products in order …
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Analyses of Bluff Body and Swirl-Stabilised Flames Using Large Eddy Simulation
… equivalence ratio. Flames close to the lean flammability limit are yet to be explored using the combustion modelling that is used in this work. Hence, the simulation of a swirl-stabilised partially premixed flame in a gas turbine model combustor is undertaken. An extensive experimental data …