| Full text | |
| Author(s): |
Soares Neto, T. G.
[1]
;
Carvalho, Jr., J. A.
[2]
;
Cortez, E. V.
[1]
;
Azevedo, R. G.
[2]
;
Oliveira, R. A.
[1]
;
Fidalgo, W. R. R.
[1]
;
Santos, J. C.
[1]
Total Authors: 7
|
| Affiliation: | [1] INPE, Lab Assoc Combustao & Propulsao, Inst Nacl Pesquisas Espaciais, Cachoeira Paulista - Brazil
[2] Univ Estadual Paulista UNESP, Dept Energia, BR-12516410 Guaratingueta, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Atmospheric Environment; v. 45, n. 39, p. 7455-7461, DEC 2011. |
| Web of Science Citations: | 17 |
| Abstract | |
Biomass samples representing Amazon forest native species were burned in laboratory experiments. These species were obtained in the deforestation arc, near the town of Alta Floresta, state of Mato Grosso, Brazil. Moisture content values obtained for twigs and pieces of sticks and leaves of the same species ranged from 9 to 11%, in terms of mass of moisture per total mass. Gas concentrations were measured for carbon dioxide, carbon monoxide, nitrogen oxides, and unburned hydrocarbons. Temperatures, instantaneous burn rates, instantaneous combustion efficiencies and instantaneous emission factors for carbon dioxide and carbon monoxide were evaluated. Burning stages (flaming and smoldering) were identified by visual observation and correlation with the combustion efficiency. The average emission factors were 1565 +/- 128, 50.3 +/- 17.1, 2.74 +/- 0.75, and 14.2 +/- 5.9 grams per kg of burned dry biomass. for carbon dioxide, carbon monoxide, nitrogen oxides and unburned hydrocarbons, respectively. These results were compared to average emission factors of carbon dioxide, carbon monoxide, nitrogen oxides and methane determined in field experiments performed in the Amazon region. Agreement with results of field experiments was observed, especially for the flaming stage. (C) 2011 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 08/04490-4 - Combustion of tropical forest biomass |
| Grantee: | João Andrade de Carvalho Junior |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 02/08964-4 - Concentrations of chemical species released during the combustion of biomass in the Amazon Forest |
| Grantee: | João Andrade de Carvalho Junior |
| Support Opportunities: | Regular Research Grants |