Results 11 to 20 of about 326,312 (327)

Effects of Additional Cavity Floor Injection on the Ignition and Combustion Processes in a Mach 2 Supersonic Flow

open access: yesEnergies, 2020
Effects of additional cavity floor injection on the ethylene ignition and combustion processes in a cavity-based scramjet combustor are investigated experimentally in a Mach 2.0 supersonic flow using flame luminosity and CH* (CH radical) spontaneous ...
Fan Li   +6 more
doaj   +1 more source

The Construction of Probabilistic Wildfire Risk Estimates for Individual Real Estate Parcels for the Contiguous United States

open access: yesFire, 2022
The methodology used by the First Street Foundation Wildfire Model (FSF-WFM) to compute estimates of the 30-year, climate-adjusted aggregate wildfire hazard for the contiguous United States at 30 m horizontal resolution is presented.
Edward J. Kearns   +19 more
doaj   +1 more source

A comparative study between two ignition sources: Electric igniter versus pyrotechnic igniter

open access: yesJournal of Loss Prevention in the Process Industries, 2023
The risk assessment of combustible explosive dust is based on the determination of the probability of dust dispersion, the identification of potential ignition sources and the evaluation of explosion severity. It is achieved in most of cases with the two main experimental normalized devices such as the Hartmann tube (spark ignition) and the 20L ...
El Gadha, Chayma   +2 more
openaire   +2 more sources

Review of Experimental Methods for Measuring the Ignition and Combustion Characteristics of Metal Nanoparticles

open access: yesNanomaterials, 2020
Investigations in recent decades have shown that the combustion mechanism of metal particles changes dramatically with diminishing size. Consequently, theoretical description of the ignition and combustion of metal nanoparticles requires additional ...
Vladimir Zarko, Anatoly Glazunov
doaj   +1 more source

Effect of fuel property on the ignition and combustion characteristics of prechamber ignition

open access: yesJournal of Thermal Science and Technology, 2021
The prechamber combustion characteristics of a cogeneration system were studied using a rapid compression and expansion machine (RCEM) to improve the efficiency of cogeneration natural gas engines.
Riku YAMASHITA   +5 more
doaj   +1 more source

Thermal Energy and Luminosity Characterization of an Advanced Ignition System Using a Non-Intrusive Methodology in an Optically Accessible Calorimeter

open access: yesEnergies, 2023
To restrain the environmental impact of modern SI engines, igniters must guarantee stable combustions with low cycle-to-cycle variability in extreme operating conditions (high EGR, ultra-lean), via high energy release in the combustion chamber.
Roberto Martinelli   +5 more
doaj   +1 more source

FIRE CHARACTERISTICS FOR ADVANCED MODELLING OF FIRES [PDF]

open access: yesCivil Engineering Journal, 2016
This paper summarizes the material and fire properties of solid flammable/combustible materials /substances /products, which are used as inputs for the computer numerical fire models. At the same time it gives the test standards for their determination.
Otto Dvořák
doaj   +1 more source

Ignition characteristics of methane-air mixture at low initial temperature

open access: yesFrontiers in Energy Research, 2023
In this paper, FLUENT software coupled with the chemical reaction mechanism is used to study the ignition characteristics of methane-air mixtures at low temperature.
Chao Yang   +4 more
doaj   +1 more source

Combustion Characteristics and Laminar Flame Speed of Premixed Ethanol-Air Mixtures with Laser-Induced Spark Ignition [PDF]

open access: yes, 2018
Laser-induced spark-ignition (LISI) has an advanced ignition technique with a few benefits over spark ignition. In this study, flame morphology, laminar flame characteristics and combustion characteristics of premixed anhydrous ethanol and air mixtures ...
Badawy   +24 more
core   +1 more source

An Experimental Investigation of the Effect of Traditional Enhancement on Spark Ignition Engine Performance [PDF]

open access: yesKirkuk Journal of Science, 2011
An Experimental investigation of the effect of traditional additive on the performance of spark ignition engine ,by use three traditional types, which were used as additive (gasoline additive, Gema and T-max )that were added to pure fuel as a ...
Raaid Rashad Jaseem   +2 more
doaj   +1 more source

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