Results 21 to 30 of about 277,391 (291)

Burned Gas Characteristics of Laminar Lifted Flame at the Beginning of Stream Heating

open access: yesJournal of Thermal Science and Technology, 2011
This research experimentally investigates the exhaust gas characteristics of a methane-air lifted-jet flame with elevated stream temperatures up to 450 K. Emission indices of NOx and CO were measured by direct gas sampling using a gas detector tube.
Mitsutomo HIROTA   +2 more
doaj   +1 more source

Multi-sensor fire detection by fusing visual and non-visual flame features [PDF]

open access: yes, 2010
This paper proposes a feature-based multi-sensor fire detector operating on ordinary video and long wave infrared (LWIR) thermal images. The detector automatically extracts hot objects from the thermal images by dynamic background subtraction and ...
Lambert, Peter   +4 more
core   +2 more sources

Thermal Response Characteristics of Concrete-Filled Steel Tube Columns with Flame Encapsulation Thickness [PDF]

open access: yesE3S Web of Conferences
In order to elucidate the influence of flame encapsulation thickness on the thermal response characteristics of concrete-filled steel tube columns in a fire environment, a study was conducted focusing on the primary control mechanism of heat radiation ...
Yang Can, Zhang Zhaoqiang
doaj   +1 more source

Turbulent Flame Speed and Flame Characteristics of Lean Premixed H2-CH4 Flames at Moderate Pressure Levels

open access: yesVolume 3A: Combustion, Fuels, and Emissions, 2023
Abstract Carbon dioxide emissions in gas turbine power generation can be reduced by adding an increasing amount of hydrogen to the existing natural gas-fueled combustion systems. To enable safe operation, more insight on how H2 addition affects turbulent flame speed and other important flame characteristics is needed.
Filippo Faldella   +4 more
openaire   +1 more source

Numerical Simulation on Flame Propagation Characteristics of Coal Dust Explosion in Diagonal Structure Network

open access: yesChemical Engineering Transactions, 2018
In order to study the propagation characteristics of coal dust explosion in the angular branch, gambit software is used to establish a model of the pipe network and to divide the grid.
Baichao Song, Yucheng Li
doaj   +1 more source

Equivalence Ratio Modelling of Premixed Propane Flame by Multiple Linear Regression Using Flame Color and Spatial Characteristics

open access: yesMeasurement Science Review, 2023
Equivalence ratio (Φ) is one of the most important parameters in combustion diagnostics. In previous studies, flame color characteristics have been widely applied to model the Φ of premixed hydrocarbon flames.
Yang Hao   +4 more
doaj   +1 more source

A simulated study on intermittent flame feature of mass fire in channel structure

open access: yesCase Studies in Thermal Engineering, 2022
Compared with the intermittent thermal-flame behavior in ordinary building, the flame behavior may also occur in mass fire inside channel structures, accompanied by distinct thermal characteristics, which is rarely studied.
Xi Zhang, Qing Lai, Huang Xiao, Jie Li
doaj   +1 more source

Experimental study on upward flame spread characteristics of external thermal insulation material under the influence of porosity

open access: yesCase Studies in Thermal Engineering, 2018
Upward flame spread characteristics over extruded polystyrene (XPS) foams with different porosities has been analyzed through experiments. In this paper, the average flame height and average maximum flame temperature first rise and then drop with ...
Qing xuan Meng   +3 more
doaj   +1 more source

Simultaneous measurement of burning velocity and turbulence intensity ahead the flame front during aluminum flame propagation

open access: yesChemical Engineering Transactions, 2022
Numerical simulations of the flame propagation process are mandatory to predict the consequences of dust explosions. One key parameter of these models is the burning velocity, i.e. the consumption rate of the reactants by the flame front.
Clement Chanut   +3 more
doaj   +1 more source

Combustion Characteristics of Natural Gas/Air Flat Premixed Laminar Flames in a Developed Matrix Burner

open access: yesScientific African, 2023
The natural gas flat flame characteristics are experimentally and numerically investigated under different equivalence ratios. A matrix burner is designed so that the natural gas-air mixture from the matrix burner makes up the flat flame.
M. Shehata, I.A. Ibrahim, H.M. Gad
doaj   +1 more source

Home - About - Disclaimer - Privacy