The Experimental Study of the Efficiency of the Gasification Process of the Fast-Growing Willow Biomass in a Downdraft Gasifier
In this work, a study was performed on the influence of the ratio of height to the diameter of the reduction zone of a small-size downdraft gasifier as well as of the fuel fraction sizes on the gas quality (the quality was evaluated for <i>CO</i> content). The ratio of a full side area t...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-01-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/16/2/578 |
| Summary: | In this work, a study was performed on the influence of the ratio of height to the diameter of the reduction zone of a small-size downdraft gasifier as well as of the fuel fraction sizes on the gas quality (the quality was evaluated for <i>CO</i> content). The ratio of a full side area to the volume of a fuel fraction (<i>SVR</i>) was used as a fuel parameter. The maximum <i>CO</i> concentration was observed when using a small fuel fraction with <i>SVR</i>—0.7–0.72 mm<sup>−1</sup> and when adhering to the ratio of height to the diameter of the reduction zone <i>H/D</i>—0.5–0.6. The maximum electric power for gasoline generators (nominal power equaled 4 kW) when using the gas received from the fast-growing hybrid willow biomass equaled 2.4 kW. This power is 37.5% lower than when using gasoline and 7.0% lower than when using the gas received from the hardwood biomass. The emissions of harmful gases into the atmosphere by the gasoline generator engine equaled 0.12–0.14% <i>CO</i> and 24–27 mln<sup>−1</sup> <i>C<sub>x</sub>H<sub>y</sub></i>. The emissions were 64.8 times less for <i>CO</i> and 8.5 times less for <i>C<sub>x</sub>H<sub>y</sub></i> when compared with using gasoline. |
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| ISSN: | 1996-1073 |