Results 11 to 20 of about 20,374 (260)

Calculation and analysis of the flamelet library for numerical modelling of the non-premixed combustion of natural gas in a pilot burner [PDF]

open access: yesE3S Web of Conferences, 2023
The flamelet modelling concept has been employed for numerical simulation of the non-premixed combustion of natural gas in a pilot burner of novel type. This prospective laboratory-scale burner device is featured by axial supply of high-speed jet of flue
Krasinsky Denis
doaj   +1 more source

Analysis of V-Gutter Reacting Flow Dynamics Using Proper Orthogonal and Dynamic Mode Decompositions

open access: yesEnergies, 2020
The current work is focused on investigating the potential of data-driven post-processing techniques, including proper orthogonal decomposition (POD) and dynamic mode decomposition (DMD) for flame dynamics.
Yang Yang, Xiao Liu, Zhihao Zhang
doaj   +1 more source

A Flame-Detection Algorithm Using the Improved YOLOv5

open access: yesFire, 2023
Flame recognition is an important technique in firefighting, but existing image flame-detection methods are slow, low in accuracy, and cannot accurately identify small flame areas. Current detection technology struggles to satisfy the real-time detection
Xingang Xie   +5 more
doaj   +1 more source

Acoustic Triggering of Combustion Instability in a Swirling Flame: An Experimental Study

open access: yesEnergies, 2023
Combustion instability is a common thermoacoustic coupling problem in combustion systems, and the pressure oscillations generated inevitably damage the combustion system. Studying the mechanism of combustion instability, especially the triggering problem
Yunpeng Liu   +3 more
doaj   +1 more source

Influence of flame-holder temperature on the acoustic flame transfer functions of a laminar flame [PDF]

open access: yesCombustion and Flame, 2018
The occurrence of combustion instabilities in high-performance engines such as gas turbines is often affected by the thermal state of the engine. For example, strong bursts of pressure fluctuations may occur at cold start for operating conditions that are stable once the engine reaches thermal equilibrium.
Daniel Mejia   +6 more
openaire   +3 more sources

Working Condition Recognition Based on Transfer Learning and Attention Mechanism for a Rotary Kiln

open access: yesEntropy, 2022
It is difficult to identify the working conditions of the rotary kilns due to the harsh environment in the kilns. The flame images of the firing zone in the kilns contain a lot of working condition information, but the flame image data sample size is too
Yuchao Hu   +3 more
doaj   +1 more source

Development of water heater using tubular flame - Heat transfer characteristics on the coiled tube and the inserted tube heat exchangers -

open access: yesMechanical Engineering Journal, 2014
The purpose of this study is to develop the compact auxiliary water heater using tubular flame for home CHP (combined heat and power). The tubular-flame water-heater consists of the tubular flame burner, the coiled tube heat exchanger and the inserted ...
Ryosuke MATSUMOTO   +10 more
doaj   +1 more source

Influences of Sub-Atmospheric Pressure on Upward Flame Spread over Flexible Polyurethane Foam Board with Multiple Inclinations

open access: yesApplied Sciences, 2020
Fire propagation and burning characteristics of upward flame spread over flexible polyurethane (FPU) foam board were investigated under coupling effects of pressure and orientation. As a further comparative research of our previous work, three pressures (
Ran Tu   +4 more
doaj   +1 more source

Simulation of Hydrogen-Air-Diluents Mixture Combustion in an Acceleration Tube with FlameFoam Solver

open access: yesEnergies, 2021
During a severe accident in a nuclear power plant, hydrogen can be generated, leading to risks of possible deflagration and containment integrity failure. To manage severe accidents, great experimental, analytical, and benchmarking efforts are being made
Mantas Povilaitis   +1 more
doaj   +1 more source

Comparison of soot radiation in diesel flame given by mathematical model and by experimental data

open access: yesVietnam Journal of Mechanics, 2007
An integral unidirectional model is established to calculate radiation heat transfer of Diesel flame in the open air and in combustion chamber of engine.
Bui Van Ga   +2 more
doaj   +1 more source

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