Fibrous hemp (Felina 32, USO 31, Finola) and fibrous nettle processing and usage of pressed biofuel for energy purposes
| Autor: | Algirdas Jasinskas, Dionizas Streikus, Tomas Vonžodas |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
060102 archaeology
Renewable Energy Sustainability and the Environment Chemistry 020209 energy Pellets Biomass 06 humanities and the arts 02 engineering and technology 7. Clean energy Chaff Granulation Animal science 13. Climate action Biofuel Pellet 0202 electrical engineering electronic engineering information engineering 0601 history and archaeology Composition (visual arts) Water content |
| Zdroj: | Renewable Energy |
| ISSN: | 0960-1481 |
| DOI: | 10.1016/j.renene.2019.12.007 |
| Popis: | There were investigated three varieties of fibrous hemp – Felina 32, USO 31 and Finola and one sort of fibrous nettle. Before granulation, plants were chopped and milled, and were determined chaff and mill fractional composition. Produced pellet humidity ranged from 9.98% to 8.87%, and pellet density reached 1171.7 kg m−3 DM of USO 31 variety. The ash contents of the fibrous hemp and fibrous nettle pellet reached 3.58% and 6.6%, and the net calorific values were 17.37 MJ kg−1 and 16.93 MJ kg−1 DM, respectively. The composition of determined fibrous plant chemical elements ranged within these limits: carbon – 45–48%; hydrogen – 1.0–1.5%, nitrogen – 5–6% and oxygen – 41–43%. Determined ash melting temperatures ranged from IT – 733–673 °C to FT – 863–859 °C. Pellets disintegration force varied from 992 N for Felina 32 till 1338 N for fibrous nettle. Harmful emissions were also estimated, it ranged – CO2 – 3.1–5.0%, CO – 411.7–1410.8 ppm, NOx – 88.0–117.3 ppm and unburnt hydrocarbons CxHy – 26.0–127.9 ppm have been determined when burning of granules. Determined emissions were within the permissible limits. Coefficient of energy efficiency of granulated biofuel, when biomass moisture content was decreased by 20%, was 2.83. |
| Databáze: | OpenAIRE |
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