Mechanical and Combustion Properties of Agglomerates of Wood of Popular Eastern European Species
| Autor: | Piotr Parafiniuk, Ewa Gondek, Aleksander Lisowski, Marek Molenda, Joanna Wiącek, Mateusz Stasiak, Anna Oniszczuk, Marcin Chutkowski, Józef Horabik, Justyna Wajs, Maciej Bańda |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Willow
Technology 020209 energy pellet properties Pellets Compaction 02 engineering and technology Article 020401 chemical engineering Pellet 0202 electrical engineering electronic engineering information engineering General Materials Science 0204 chemical engineering Beech Water content Microscopy QC120-168.85 biology QH201-278.5 digestive oral and skin physiology biology.organism_classification Pulp and paper industry Engineering (General). Civil engineering (General) TK1-9971 Eastern european sawdust Descriptive and experimental mechanics quality visual_art visual_art.visual_art_medium Environmental science Sawdust Electrical engineering. Electronics. Nuclear engineering TA1-2040 drop resistance wood combustion |
| Zdroj: | Materials Volume 14 Issue 11 Materials, Vol 14, Iss 2728, p 2728 (2021) |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma14112728 |
| Popis: | The objective of the reported project was to produce wood agglomerates from popular East European species to determine their strength and combustion properties. Closed-die pellets were produced from sawdust of six types of wood common on the East European market: pine, willow, oak, poplar, birch, and beech. The properties of pellets, determined by the type of wood, were influenced by the compaction pressure and the moisture content of the sawdust. The highest average pellet density was obtained for oak sawdust, while the lowest density was obtained for poplar pellets. Expansion of pellets after removing from the die was found to be dependent on the wood species, and as expected, on compaction pressure. The pellet expansion increased after 2 h of conditioning in the laboratory and with an increase in moisture content. The highest and the smallest strength were obtained for oak pellets and for birch sawdust, respectively. The strength of the pellets increased by more than 100% with an increase in the compaction pressure from 60 MPa to 120 MPa. The average strength decreased by 65% with increasing moisture content. For all tested materials, drop resistance remained at a high level, acceptable in industrial practice. The highest calorific value of 18.97 MJ/kg was obtained for pine pellets. The highest ash value of 1.52% was obtained for willow pellets and the lowest value of 0.32% for pine pellets. |
| Databáze: | OpenAIRE |
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