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Type: Journal article
Title: Identification and quantitative analysis of smoldering and flaming combustion of radiata pine
Author: Wang, H.
Van Eyk, P.
Medwell, P.
Birzer, C.
Tian, Z.
Possell, M.
Citation: Energy and Fuels, 2016; 30(9):7666-7677
Publisher: American Chemical Society
Issue Date: 2016
ISSN: 0887-0624
Statement of
Houzhi Wang, Philip J. van Eyk, Paul R. Medwell, Cristian H. Birzer, Zhao F. Tian and Malcolm Possell
Abstract: Smoldering combustion is an important combustion process in wildfires; however, there are fewer experimental studies recorded in the literature in comparison with flaming combustion. An experimental study was conducted to characterize the initiation of smoldering and flaming combustion of biomass using temporal and spatial temperature profiles, mass loss profiles, and gas analyses. The results show that the peak temperature, temperature rise rate, and average mass loss rate of flaming combustion are much higher than those of smoldering combustion. The results on the ratio of CO to CO₂ for flaming and smoldering combustion show good agreement with the data reported in the literature. The results also show that smoldering combustion can be initiated only under a low air flow; for the experimental apparatus used, this corresponded to flow velocity of ≤38.1 mm·s⁻¹. A combustion progress pathway diagram was developed that describes the stages of smoldering and flaming combustion of a single dry biomass particle. An analysis of combustion kinetic parameters (activation energy and pre-exponential factor) and an energy balance analysis were also conducted to understand the differences between smoldering and flaming combustion.
Rights: © 2016 American Chemical Society
RMID: 0030051849
DOI: 10.1021/acs.energyfuels.6b00314
Appears in Collections:Mechanical Engineering publications

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