Log smoldering after an amazonian deforestation fire

Rabelo, E. R. C.; Veras, Carlos; Carvalho, João Andrade de; Alvarado, Ernesto; Sandberg, David; Santos, José Carlos dos

doi:10.1016/j.atmosenv.2003.09.065

Cited by 33 publications

(25 citation statements)

References 15 publications

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“…However, even if our rough estimate of RSC fuel consumption is doubled it is still a fairly small percentage and in relatively good agreement with what can be gleaned from past fuel consumption measurements on tropical deforestation fires. In addition, the linear smoldering rate measured on this fire was slightly higher than measured on similar fires in similar fuels (0.6 -2.4 cm h À1 [Carvalho et al, 2001]; 0.7-3.8 cm h À1 [Rabelo et al, 2004]).…”

Section: Planned Fire Fuel Measurementscontrasting

confidence: 57%

The tropical forest and fire emissions experiment: Trace gases emitted by smoldering logs and dung from deforestation and pasture fires in Brazil

et al. 2007

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[1] Earlier work showed that Amazonian biomass burning produces both lofted and initially unlofted emissions in large amounts. A mobile, Fourier transform infrared spectrometer (FTIR) measured the unlofted emissions of 17 trace gases from residual smoldering combustion (RSC) of logs as part of the Tropical Forest and Fire Emissions Experiment (TROFFEE) during the 2004 Amazonian dry season. The RSC emissions were highly variable and the few earlier RSC measurements lay near the high end of combustion efficiency observed in this study. Fuel consumption by RSC was $5% of total for a planned deforestation fire. Much regional RSC probably occurs in the residual woody debris burned during pasture maintenance fires. RSC could increase estimated total fire emissions for the Amazon region by 20-50% for several important VOC. FTIR emissions measurements of burning dung (in a pasture) showed high emission ratios for acetic acid and ammonia to CO (6.6 ± 3.4% and 8.9 ± 2.1%). Large emissions of nitrogen containing trace gases from burning dung and crop waste could mean that biomass burning in India produces more particle mass than previously assumed. Measurements of late-stage kiln emissions suggested that VOC/CO may increase as carbonization is extended. A cook stove emitted many VOC and NH 3 far outside the range observed for open wood cooking fires. Enclosed/vented cooking stoves may change the chemistry of the smoke that is emitted.

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Section: Planned Fire Fuel Measurementscontrasting

confidence: 57%

The tropical forest and fire emissions experiment: Trace gases emitted by smoldering logs and dung from deforestation and pasture fires in Brazil

et al. 2007

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“…Research in CWD combustion in tropical ecosystems has focussed on creating a better understanding of the smouldering process and its relation to carbon emissions (Carvalho et al 2001;Carvalho et al 2002;Rabelo et al 2004). These studies characterised carbon emission by quantifying the consumption of biomass (Carvalho et al 2001), and have led to advances in our knowledge about the smouldering processes within CWD (Carvalho et al 2002;Rabelo et al 2004). Researchers studying the smouldering process evaluated fibrous logs burned in the field and laboratory.…”

Section: Experiments In Tropical Ecosystemsmentioning

confidence: 99%

“…The consumption of CWD by fire has management significance as well. Often CWD are prone to smouldering combustion and can continue to slowly combust long after the initial fire has passed (Brown et al 2003;Rabelo et al 2004). During this relatively inefficient smouldering combustion phase, CWD emit large quantities of pollutants such as greenhouse gases and particulate matter (PM) (Bertschi et al 2003), thus affecting regional air quality.…”

Section: Introductionmentioning

confidence: 99%

The combustion of sound and rotten coarse woody debris: a review

Hyde

Smith

Ottmar

et al. 2011

Int. J. Wildland Fire

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Coarse woody debris serves many functions in forest ecosystem processes and has important implications for fire management as it affects air quality, soil heating and carbon budgets when it combusts. There is relatively little research evaluating the physical properties relating to the combustion of this coarse woody debris with even less specifically addressing decomposition, a condition that eventually affects all debris. We review studies evaluating the combustion and consumption of coarse woody debris in the field and under controlled conditions. The thermal properties affected by decomposition are also reviewed, as are current modelling tools to represent their combustion. Management implications and suggestions for future research are then presented.

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“…The persistent smoldering of thick fuels is typically observed for a few days after a flaming wildfire has passed, and it is often referred to as residual smoldering combustion. This can make smoldering be responsible for up to 50% or more of the total burned biomass during wildfires [Bertschi et al, 2003, Rabelo et al 2004, Davies et al 2013.…”

Section: Smoldering Wildland Firesmentioning

confidence: 99%

Smoldering Combustion

Rein¹

2016

SFPE Handbook of Fire Protection Engineering

102

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His professional activities are centered on research in fire and combustion, and teaching of thermofuild sciences to engineers. He has studied a wide range of fire dynamics topics in the built and the natural environments, including pyrolysis, fire modeling, wildfires, structures and fire, and forecasting techniques. Over the course of the last 15 years he has also specialized in smoldering combustion, conducting both computational and experimental studies on a variety of fuels like polyurethane foam, cellulose, peat and coal.

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Log smoldering after an amazonian deforestation fire

Cited by 33 publications

References 15 publications

The tropical forest and fire emissions experiment: Trace gases emitted by smoldering logs and dung from deforestation and pasture fires in Brazil

The tropical forest and fire emissions experiment: Trace gases emitted by smoldering logs and dung from deforestation and pasture fires in Brazil

The combustion of sound and rotten coarse woody debris: a review

Smoldering Combustion

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