Results 31 to 40 of about 280,275 (311)

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

Journal 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, Hiroki OSO, Goro MASUYA   +2 more
doaj   +1 more source

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

E3S 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

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

Chemical 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

Flame Detection for Video-based Early Fire Warning Systems and 3D Visualization of Fire Propagation [PDF]

, 2012
Early and accurate detection and localization of flame is an essential requirement of modern early fire warning systems. Video-based systems can be used for this purpose; however, flame detection remains a challenging issue due to the fact that many ...
Dimitropoulos, Kosmas, Grammalidis, Nikos, Tsalakanidou, Filareti   +2 more
core   +1 more source

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

Case 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, Guo qing Zhu, Miao miao Yu, Zhen huan Liang   +3 more
doaj   +1 more source

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

Case 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

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

Measurement 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, Lai Yufeng, Liu Xuanqi, Jiang Houshi, Yang Jiansheng   +4 more
doaj   +1 more source

Circle grid fractal plate as a turbulent generator for premixed flame: an overview [PDF]

, 2013
This review paper focuses to ascertain a new approach in turbulence generation on the structure of premixed flames and external combustion using a fractal grid pattern.
A Khalid, B Manshoor, Idris M S, Laizet S, M F Othman, Mandelbrot B, Mohd Adib M A H, Naga Sarada S, Nedic J, Queiros-Conde D, Salim S M M, Seoud R E Vassilicos J C, Sponfeldner T, Syam Sundar L, Tahseen T A, Tahseen T A, Tennekes, Vijaya Lakshmi B   +17 more
core   +1 more source

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

, 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, Van de Walle, Rik, Van Hoecke, Sofie, Vanoosthuyse, Alexander, Verstockt, Steven   +4 more
core   +2 more sources

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

Scientific 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