Results 21 to 30 of about 268,971 (258)

An analytical model based on radiative heating for the determination of safety distances for wildland fires [PDF]

, 2011
International audienceThe radiative heat transfer is often the main thermal impact of a wildfire on people fighting the fire or on structures. Thus, the estimation of the radiation coming from the fire font and hitting a target is of primary importance ...
Leroy-Cancellieri, V., Moretti, B., Rossi, J. L., Simeoni, A.   +3 more
core   +3 more sources

Study on the Combustion Process of Premixed Methane Flames with CO₂ Dilution at Elevated Pressures

Energies, 2019
The article presents the results of experimental and numerical investigation of turbulent premixed methane flames diluted by carbon dioxide (up to 30%) at atmospheric and elevated pressures (up to 0.5 MPa).
Rafał Ślefarski
doaj   +1 more source

Effect of cross airflow on the flame geometrical characteristics and flame radiation fraction of ethylene jet fires with carbon dioxide addition

Applications in Energy and Combustion Science, 2022
Achieving carbon peaking and carbon neutrality is crucial to accelerating the construction of ecological civilization and promoting high-quality national development.
Fei Tang, Zunxin Zhao, Qiang Wang, Adriana Palacios   +3 more
doaj   +1 more source

Study on Combustion Oscillation of Premixed Flame with Pilot Fuel at Elevated Pressures

Journal of Thermal Science and Technology, 2009
Acoustically-coupled combustion oscillation is studied for premixed flame with pilot fuel to be used in gas turbine combustors. Premixed gas is passed through swirl vanes and burnt with the centrally injected pilot fuel.
Masaya OHTSUKA, Shohei YOSHIDA, Yoshitaka HIRATA, Nariyoshi KOBAYASHI   +3 more
doaj   +1 more source

Effect of CO2 Dilution on the Structure and Emissions from Turbulent, Non-premixed Methane-Air Jet Flames [PDF]

, 2017
This investigation gives a comparison of the variation of temperature and gas compositions in lifted, turbulent non-premixed methane–air jet flames firing vertically into still air with different carbon dioxide diluent concentrations in the fuel jet. The
Erete, JI, Fairweather, M, Hughes, KJ, Ma, L, Pourkashanian, M, Williams, A   +5 more
core   +1 more source

Influence of U-shaped structure on upward flame spread and heat transfer behaviors of PMMA used in building thermal engineering

Case Studies in Thermal Engineering, 2020
Both experimental and theoretical study on upward flame spread and heat transfer behaviors of PMMA (polymethyl methacrylate) under different U-shaped structure factors (Π) was conducted. The main results are as follows. The progress of pyrolysis front is
Weiguang An, Xiangwei Yin, Minglun Cai, Yanhua Tang, Qing Li, Xiangming Hu   +5 more
doaj   +1 more source

A comparative study of gaseous fuel flame characteristics for different bluff body geometries

Case Studies in Thermal Engineering, 2022
Flame stabilization by a bluff-body is commonly used in many combustion applications to improve mixture characteristics, enhance flame stability and assist in combustion control.
I.A. Ibrahim, A.H. Shokry, M.M. Shabaan, H.M. Gad   +3 more
doaj   +1 more source

Experimental and numerical study of upward flame spread and heat transfer over expanded polystyrene at different altitudes

Case Studies in Thermal Engineering, 2021
Experimental and numerical study on upward, vertical flame spread was carried out on expanded polystyrene (EPS) at two different altitudes of 50 m and 3658 m to understand the effect that altitude has on flame spread of melted material.
Xinjie Huang, Gongjian Chen, Zhijie Zhou, Junjie Hu, Changlong Wang, Depeng Chen   +5 more
doaj   +1 more source

LES-CMC simulations of different auto-ignition regimes of hydrogen in a hot turbulent air Co-flow [PDF]

, 2013
Large-Eddy Simulation (LES) results in combination with first-order Conditional Moment Closure (CMC) are presented for a hydrogen jet, diluted with nitrogen, issued into a turbulent co-flowing hot air stream.
Mastorakos, E, Merci, Bart, Stankovic, Ivana   +2 more
core   +1 more source

Study of Baffle Height and Wind Velocity Effect on the Characteristics of Pool Fires in a Wind Tunnel

Applied Sciences, 2023
Wind-blown pool fire accidents in a ventilated tunnel usually pose and present serious risks to properties and personal safety. In this paper, the flame characteristics and flow field changes of pool fires under the combined influence of baffles and ...
Zhilei Yu, Xin Huang
doaj   +1 more source