A Theoretical Model of the Gasification Rate of Biomass and Its Experimental Confirmation
The gasification rate of fuel, biomass gasification in particular, is an important parameter which is worth considering in the process of creating a gasifier with a continuous operation process. The gasification of biomass is a complex thermochemical process. The theoretical and practical studies of...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/20/7721 |
| _version_ | 1797473504566706176 |
|---|---|
| author | Savelii Kukharets Gennadii Golub Marek Wrobel Olena Sukmaniuk Krzysztof Mudryk Taras Hutsol Algirdas Jasinskas Marcin Jewiarz Jonas Cesna Iryna Horetska |
| author_facet | Savelii Kukharets Gennadii Golub Marek Wrobel Olena Sukmaniuk Krzysztof Mudryk Taras Hutsol Algirdas Jasinskas Marcin Jewiarz Jonas Cesna Iryna Horetska |
| author_sort | Savelii Kukharets |
| collection | DOAJ |
| description | The gasification rate of fuel, biomass gasification in particular, is an important parameter which is worth considering in the process of creating a gasifier with a continuous operation process. The gasification of biomass is a complex thermochemical process. The theoretical and practical studies of the gasification rate of biomass are complicated because of a high thermochemical rate of reactions in the functioning zones of a gasifier. The complexity of the study prevents the achievement of the required accuracy of the analytical model of the gasification rate of biomass. The known theoretical models of the gasification rate only partially describe the dynamics of the gasification rate of biomass. Moreover, most scientific studies are focused on establishing the effects of gasifier parameters and the gasification process on the quality indicators of the received gas but not on the gasification rate of fuel. To build an accurate model of the gasification rate the authors propose a series of experimental studies in a well-defined range of the parameters of a gasifier. The paper suggests a simple mathematical model of the gasification rate of biomass, which is proportional to the amount of plant biomass that remained non-gasified. The coefficients of the gasification rate for straw pellets, wood pellets and wood in pieces have been determined. Under a minimal air supply into an active zone of a gasifier (0.00088 m<sup>3</sup>/s) a coefficient of gasification rate is nearly the same for the test fuel materials and it differs by 4.7% between wood pellets and straw pellets. When the air supply increases, the gap between the coefficients increases as well and it reaches 9.44 × 10<sup>−5</sup> c<sup>−1</sup> for wood pellets, 1.05 × 10<sup>−4</sup> c<sup>−1</sup> for straw pellets and 8.64 × 10<sup>−5</sup> c<sup>−1</sup> for wood in pieces under air supply into an active zone of a gas generator of 0.01169 m<sup>3</sup>/s. Straw pellets have the highest gasification rate and wood in pieces has the lowest gasification rate. |
| first_indexed | 2024-03-09T20:16:27Z |
| format | Article |
| id | doaj.art-595f5bcc24cf41aa8b7e776ca735eed0 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T20:16:27Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-595f5bcc24cf41aa8b7e776ca735eed02023-11-23T23:59:32ZengMDPI AGEnergies1996-10732022-10-011520772110.3390/en15207721A Theoretical Model of the Gasification Rate of Biomass and Its Experimental ConfirmationSavelii Kukharets0Gennadii Golub1Marek Wrobel2Olena Sukmaniuk3Krzysztof Mudryk4Taras Hutsol5Algirdas Jasinskas6Marcin Jewiarz7Jonas Cesna8Iryna Horetska9Department of Mechanics and Agroecosystems Engineering, Polissia National University, Staryi Blvd., 7, 10008 Zhytomyr, UkraineDepartment of Tractors, Automobiles and Bioenergy Resources, National University of Life and Environmental Sciences of Ukraine, Heroev Oborony Str., 15B, 03040 Kyiv, UkraineFaculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, PolandDepartment Machines Processes and Agroengineering Equipment, Polissia National University, Staryi Blvd., 7, 10008 Zhytomyr, UkraineFaculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, PolandDepartment of Mechanics and Agroecosystems Engineering, Polissia National University, Staryi Blvd., 7, 10008 Zhytomyr, UkraineDepartment of Agricultural Engineering and Safety, Faculty of Engineering, Vytautas Magnus University, Agriculture Academy, Studentu Str., 15A, Akademija, LT-53362 Kaunas, LithuaniaFaculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, PolandDepartment of Mechanical, Energy and Biotechnology Engineering, Vytautas Magnus University, Agriculture Academy, Studentu Str., 11, Akademija, LT-53362 Kaunas, LithuaniaDepartment of Mechanics and Agroecosystems Engineering, Polissia National University, Staryi Blvd., 7, 10008 Zhytomyr, UkraineThe gasification rate of fuel, biomass gasification in particular, is an important parameter which is worth considering in the process of creating a gasifier with a continuous operation process. The gasification of biomass is a complex thermochemical process. The theoretical and practical studies of the gasification rate of biomass are complicated because of a high thermochemical rate of reactions in the functioning zones of a gasifier. The complexity of the study prevents the achievement of the required accuracy of the analytical model of the gasification rate of biomass. The known theoretical models of the gasification rate only partially describe the dynamics of the gasification rate of biomass. Moreover, most scientific studies are focused on establishing the effects of gasifier parameters and the gasification process on the quality indicators of the received gas but not on the gasification rate of fuel. To build an accurate model of the gasification rate the authors propose a series of experimental studies in a well-defined range of the parameters of a gasifier. The paper suggests a simple mathematical model of the gasification rate of biomass, which is proportional to the amount of plant biomass that remained non-gasified. The coefficients of the gasification rate for straw pellets, wood pellets and wood in pieces have been determined. Under a minimal air supply into an active zone of a gasifier (0.00088 m<sup>3</sup>/s) a coefficient of gasification rate is nearly the same for the test fuel materials and it differs by 4.7% between wood pellets and straw pellets. When the air supply increases, the gap between the coefficients increases as well and it reaches 9.44 × 10<sup>−5</sup> c<sup>−1</sup> for wood pellets, 1.05 × 10<sup>−4</sup> c<sup>−1</sup> for straw pellets and 8.64 × 10<sup>−5</sup> c<sup>−1</sup> for wood in pieces under air supply into an active zone of a gas generator of 0.01169 m<sup>3</sup>/s. Straw pellets have the highest gasification rate and wood in pieces has the lowest gasification rate.https://www.mdpi.com/1996-1073/15/20/7721strawwoodbiomasspelletscoefficientgasification |
| spellingShingle | Savelii Kukharets Gennadii Golub Marek Wrobel Olena Sukmaniuk Krzysztof Mudryk Taras Hutsol Algirdas Jasinskas Marcin Jewiarz Jonas Cesna Iryna Horetska A Theoretical Model of the Gasification Rate of Biomass and Its Experimental Confirmation Energies straw wood biomass pellets coefficient gasification |
| title | A Theoretical Model of the Gasification Rate of Biomass and Its Experimental Confirmation |
| title_full | A Theoretical Model of the Gasification Rate of Biomass and Its Experimental Confirmation |
| title_fullStr | A Theoretical Model of the Gasification Rate of Biomass and Its Experimental Confirmation |
| title_full_unstemmed | A Theoretical Model of the Gasification Rate of Biomass and Its Experimental Confirmation |
| title_short | A Theoretical Model of the Gasification Rate of Biomass and Its Experimental Confirmation |
| title_sort | theoretical model of the gasification rate of biomass and its experimental confirmation |
| topic | straw wood biomass pellets coefficient gasification |
| url | https://www.mdpi.com/1996-1073/15/20/7721 |
| work_keys_str_mv | AT saveliikukharets atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT gennadiigolub atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT marekwrobel atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT olenasukmaniuk atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT krzysztofmudryk atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT tarashutsol atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT algirdasjasinskas atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT marcinjewiarz atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT jonascesna atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT irynahoretska atheoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT saveliikukharets theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT gennadiigolub theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT marekwrobel theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT olenasukmaniuk theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT krzysztofmudryk theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT tarashutsol theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT algirdasjasinskas theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT marcinjewiarz theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT jonascesna theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation AT irynahoretska theoreticalmodelofthegasificationrateofbiomassanditsexperimentalconfirmation |