Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic Crops
The article discusses the influence of briquetting/compaction parameters. This includes the effects of pressure and temperature on material density and the thermal conductivity of biomass compacted into briquette samples. Plant biomass mainly consists of lignin and cellulose which breaks down into s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/23/8458 |
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| author | Marek Kurtyka Magdalena Szwaja Andrzej Piotrowski Barbara Tora Stanislaw Szwaja |
| author_facet | Marek Kurtyka Magdalena Szwaja Andrzej Piotrowski Barbara Tora Stanislaw Szwaja |
| author_sort | Marek Kurtyka |
| collection | DOAJ |
| description | The article discusses the influence of briquetting/compaction parameters. This includes the effects of pressure and temperature on material density and the thermal conductivity of biomass compacted into briquette samples. Plant biomass mainly consists of lignin and cellulose which breaks down into simple polymers at the elevated temperature of 200 °C. Hence, the compaction pressure, compaction temperature, density, and thermal conductivity of the tested material play crucial roles in the briquetting and the torrefaction process to transform it into charcoal with a high carbon content. The tests were realized for samples of raw biomass compacted under pressure in the range from 100 to 1000 bar and at two temperatures of 20 and 200 °C. The pressure of 200 bar was concluded as the most economically viable in briquetting technology in the tests conducted. The conducted research shows a relatively good log relationship between the density of the compacted briquette and the compaction pressure. Additionally, higher compaction pressure resulted in higher destructive force of the compacted material, which may affect the lower abrasion of the material. Regarding heat transfer throughout the sample, the average thermal conductivity for the compacted biomass was determined at a value of 0.048 ± 0.001 W/(K∙m). Finally, the described methodology for thermal conductivity determination has been found to be a reliable tool, therefore it can be proposed for other applications. |
| first_indexed | 2024-03-09T17:42:25Z |
| format | Article |
| id | doaj.art-3ff034e243d24b21b6e409b917a8c41f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T17:42:25Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-3ff034e243d24b21b6e409b917a8c41f2023-11-24T11:28:35ZengMDPI AGMaterials1996-19442022-11-011523845810.3390/ma15238458Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic CropsMarek Kurtyka0Magdalena Szwaja1Andrzej Piotrowski2Barbara Tora3Stanislaw Szwaja4Termo-Klima MK, Tartaczna 12, 40-749 Katowice, PolandFaculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Armii Krajowej 21, 42-200 Czestochowa, PolandFaculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Armii Krajowej 21, 42-200 Czestochowa, PolandFaculty of Civil Engineering and Resource Management, AGH University of Science and Technology in Krakow, Mickiewicza 30, 30-059 Krakow, PolandFaculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Armii Krajowej 21, 42-200 Czestochowa, PolandThe article discusses the influence of briquetting/compaction parameters. This includes the effects of pressure and temperature on material density and the thermal conductivity of biomass compacted into briquette samples. Plant biomass mainly consists of lignin and cellulose which breaks down into simple polymers at the elevated temperature of 200 °C. Hence, the compaction pressure, compaction temperature, density, and thermal conductivity of the tested material play crucial roles in the briquetting and the torrefaction process to transform it into charcoal with a high carbon content. The tests were realized for samples of raw biomass compacted under pressure in the range from 100 to 1000 bar and at two temperatures of 20 and 200 °C. The pressure of 200 bar was concluded as the most economically viable in briquetting technology in the tests conducted. The conducted research shows a relatively good log relationship between the density of the compacted briquette and the compaction pressure. Additionally, higher compaction pressure resulted in higher destructive force of the compacted material, which may affect the lower abrasion of the material. Regarding heat transfer throughout the sample, the average thermal conductivity for the compacted biomass was determined at a value of 0.048 ± 0.001 W/(K∙m). Finally, the described methodology for thermal conductivity determination has been found to be a reliable tool, therefore it can be proposed for other applications.https://www.mdpi.com/1996-1944/15/23/8458thermal conductivitycompaction pressuredensitybiomassbriquettes |
| spellingShingle | Marek Kurtyka Magdalena Szwaja Andrzej Piotrowski Barbara Tora Stanislaw Szwaja Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic Crops Materials thermal conductivity compaction pressure density biomass briquettes |
| title | Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic Crops |
| title_full | Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic Crops |
| title_fullStr | Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic Crops |
| title_full_unstemmed | Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic Crops |
| title_short | Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic Crops |
| title_sort | thermal and stress properties of briquettes from virginia mallow energetic crops |
| topic | thermal conductivity compaction pressure density biomass briquettes |
| url | https://www.mdpi.com/1996-1944/15/23/8458 |
| work_keys_str_mv | AT marekkurtyka thermalandstresspropertiesofbriquettesfromvirginiamallowenergeticcrops AT magdalenaszwaja thermalandstresspropertiesofbriquettesfromvirginiamallowenergeticcrops AT andrzejpiotrowski thermalandstresspropertiesofbriquettesfromvirginiamallowenergeticcrops AT barbaratora thermalandstresspropertiesofbriquettesfromvirginiamallowenergeticcrops AT stanislawszwaja thermalandstresspropertiesofbriquettesfromvirginiamallowenergeticcrops |