Characterization of briquettes produced with agroforestry residues
The objective of the present was to characterize the quality of briquettes produced with fines of vegetable coal and bamboo residues, under different formulations. Specific gravity density, bulk density mass, moisture content and speed or rate of thermic degradation were evaluated. Compressive strength and rotation test were applied to the briquettes. Superior and inferior calorific values from briquettes were estimate by adjusted equations. Briquettes produced with the highest percentages of vegetable coal fines presented higher specific gravity, bulk density, ash content and fixed carbon. It also presented resistance to fall and abrasion. Briquettes with higher bamboo residues content presented faster degradation, higher compressive strength, beyond higher volatile matters and calorific value.
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Embrapa Florestas
2014
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oai:ojs.pkp.sfu.ca:article-6132017-04-28T12:48:44Z Characterization of briquettes produced with agroforestry residues Caracterização de briquetes produzidos com resíduos agroflorestais Dias Júnior, Ananias Francisco Andrade, Azarias Machado de Costa Júnior, Djailson Silva da Bambu Moinha de carvão Poder calorífico Degradação The objective of the present was to characterize the quality of briquettes produced with fines of vegetable coal and bamboo residues, under different formulations. Specific gravity density, bulk density mass, moisture content and speed or rate of thermic degradation were evaluated. Compressive strength and rotation test were applied to the briquettes. Superior and inferior calorific values from briquettes were estimate by adjusted equations. Briquettes produced with the highest percentages of vegetable coal fines presented higher specific gravity, bulk density, ash content and fixed carbon. It also presented resistance to fall and abrasion. Briquettes with higher bamboo residues content presented faster degradation, higher compressive strength, beyond higher volatile matters and calorific value. O presente trabalho teve por objetivo caracterizar a qualidade de briquetes de moinha de carvão vegetal e resíduos de bambu produzidos em diferentes formulações. Determinou-se a densidade básica, a massa específica aparente, a umidade de equilíbrio e a taxa de degradação térmica dos briquetes. Os briquetes foram avaliados por meio de testes de resistência à compressão e de tamboramento e o poder calorífico superior e inferior foram estimados a partir de equações ajustadas. Os briquetes produzidos com as maiores porcentagens de moinha de carvão vegetal apresentaram densidade básica, densidade aparente, teores de cinza e de carbono fixo mais elevados e menor friabilidade. Os briquetes com as maiores porcentagens de resíduos de bambu na composição apresentaram degradação térmica mais rápida, maior resistência à compressão, além de teor de materiais voláteis e poder calorífico mais elevados. Embrapa Florestas 2014-09-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artigo avaliado pelos pares application/pdf application/msword https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/613 10.4336/2014.pfb.34.79.613 Pesquisa Florestal Brasileira; Vol. 34 No. 79 (2014): jul./set.; 225-234 Pesquisa Florestal Brasileira; v. 34 n. 79 (2014): jul./set.; 225-234 1983-2605 1809-3647 por https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/613/374 https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/613/1161 |
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| author |
Dias Júnior, Ananias Francisco Andrade, Azarias Machado de Costa Júnior, Djailson Silva da |
| spellingShingle |
Dias Júnior, Ananias Francisco Andrade, Azarias Machado de Costa Júnior, Djailson Silva da Characterization of briquettes produced with agroforestry residues |
| author_facet |
Dias Júnior, Ananias Francisco Andrade, Azarias Machado de Costa Júnior, Djailson Silva da |
| author_sort |
Dias Júnior, Ananias Francisco |
| title |
Characterization of briquettes produced with agroforestry residues |
| title_short |
Characterization of briquettes produced with agroforestry residues |
| title_full |
Characterization of briquettes produced with agroforestry residues |
| title_fullStr |
Characterization of briquettes produced with agroforestry residues |
| title_full_unstemmed |
Characterization of briquettes produced with agroforestry residues |
| title_sort |
characterization of briquettes produced with agroforestry residues |
| description |
The objective of the present was to characterize the quality of briquettes produced with fines of vegetable coal and bamboo residues, under different formulations. Specific gravity density, bulk density mass, moisture content and speed or rate of thermic degradation were evaluated. Compressive strength and rotation test were applied to the briquettes. Superior and inferior calorific values from briquettes were estimate by adjusted equations. Briquettes produced with the highest percentages of vegetable coal fines presented higher specific gravity, bulk density, ash content and fixed carbon. It also presented resistance to fall and abrasion. Briquettes with higher bamboo residues content presented faster degradation, higher compressive strength, beyond higher volatile matters and calorific value. |
| publisher |
Embrapa Florestas |
| publishDate |
2014 |
| url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/613 |
| work_keys_str_mv |
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| _version_ |
1819153994884317184 |