Optimization of a downdraft furnace for rice straw-based heat generation
Open-field burning, a widely used treatment and disposal method for rice straw, poses severe health and environmental problems due to the release of toxic gases and loss of significant soil nutrients. Hence, alternative techniques must be explored. In this study, the use of rice straw as feedstock f...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2020
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/164521 |
| _version_ | 1855525709661863936 |
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| author | Migo-Sumagang, Maria Victoria P. Van Hung, Nguyen Detras, Monet Concepcion M. Alfafara, Catalino G. Borines, Myra G. Capunitan, Jewel A. Gummert, Martin |
| author_browse | Alfafara, Catalino G. Borines, Myra G. Capunitan, Jewel A. Detras, Monet Concepcion M. Gummert, Martin Migo-Sumagang, Maria Victoria P. Van Hung, Nguyen |
| author_facet | Migo-Sumagang, Maria Victoria P. Van Hung, Nguyen Detras, Monet Concepcion M. Alfafara, Catalino G. Borines, Myra G. Capunitan, Jewel A. Gummert, Martin |
| author_sort | Migo-Sumagang, Maria Victoria P. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Open-field burning, a widely used treatment and disposal method for rice straw, poses severe health and environmental problems due to the release of toxic gases and loss of significant soil nutrients. Hence, alternative techniques must be explored. In this study, the use of rice straw as feedstock for a downdraft small-scale furnace to produce heated air for paddy drying was investigated. A two-level factorial experiment was initially implemented using differently conditioned rice straw types, rice straw feed rates, and drying airflow rates. Optimization results using Response Surface Methodology (RSM) showed there is no significant difference in the drying air efficiency using either loose or baled straw. The optimum conditions found were at a rice straw feed rate of 20.67 kg hr-1 and drying airflow rate of 3.03 m3 s-1, resulting in a drying air efficiency of 86.1%, and an increase in drying air temperature of 18.41 oC which was sufficient for paddy drying applications. At the optimum conditions, the average CO and NOx concentrations measured inside the dryer simulator were 76.57 and 2.93 ppm, respectively. The results of this research can be used for pilot studies in actual agricultural cooperatives, as well as provide inputs to life cycle analysis |
| format | Journal Article |
| id | CGSpace164521 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1645212024-12-19T14:12:39Z Optimization of a downdraft furnace for rice straw-based heat generation Migo-Sumagang, Maria Victoria P. Van Hung, Nguyen Detras, Monet Concepcion M. Alfafara, Catalino G. Borines, Myra G. Capunitan, Jewel A. Gummert, Martin renewable energy sustainability and the environment Open-field burning, a widely used treatment and disposal method for rice straw, poses severe health and environmental problems due to the release of toxic gases and loss of significant soil nutrients. Hence, alternative techniques must be explored. In this study, the use of rice straw as feedstock for a downdraft small-scale furnace to produce heated air for paddy drying was investigated. A two-level factorial experiment was initially implemented using differently conditioned rice straw types, rice straw feed rates, and drying airflow rates. Optimization results using Response Surface Methodology (RSM) showed there is no significant difference in the drying air efficiency using either loose or baled straw. The optimum conditions found were at a rice straw feed rate of 20.67 kg hr-1 and drying airflow rate of 3.03 m3 s-1, resulting in a drying air efficiency of 86.1%, and an increase in drying air temperature of 18.41 oC which was sufficient for paddy drying applications. At the optimum conditions, the average CO and NOx concentrations measured inside the dryer simulator were 76.57 and 2.93 ppm, respectively. The results of this research can be used for pilot studies in actual agricultural cooperatives, as well as provide inputs to life cycle analysis 2020-04 2024-12-19T12:53:59Z 2024-12-19T12:53:59Z Journal Article https://hdl.handle.net/10568/164521 en Open Access Elsevier Migo-Sumagang, Maria Victoria P.; Van Hung, Nguyen; Detras, Monet Concepcion M.; Alfafara, Catalino G.; Borines, Myra G.; Capunitan, Jewel A. and Gummert, Martin. 2020. Optimization of a downdraft furnace for rice straw-based heat generation. Renewable Energy, Volume 148 p. 953-963 |
| spellingShingle | renewable energy sustainability and the environment Migo-Sumagang, Maria Victoria P. Van Hung, Nguyen Detras, Monet Concepcion M. Alfafara, Catalino G. Borines, Myra G. Capunitan, Jewel A. Gummert, Martin Optimization of a downdraft furnace for rice straw-based heat generation |
| title | Optimization of a downdraft furnace for rice straw-based heat generation |
| title_full | Optimization of a downdraft furnace for rice straw-based heat generation |
| title_fullStr | Optimization of a downdraft furnace for rice straw-based heat generation |
| title_full_unstemmed | Optimization of a downdraft furnace for rice straw-based heat generation |
| title_short | Optimization of a downdraft furnace for rice straw-based heat generation |
| title_sort | optimization of a downdraft furnace for rice straw based heat generation |
| topic | renewable energy sustainability and the environment |
| url | https://hdl.handle.net/10568/164521 |
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