Biomass characterization and reduced order modeling of mixed-feedstock gasification
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.
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| 其他作者: | |
| 格式: | Thesis |
| 語言: | eng |
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Massachusetts Institute of Technology
2011
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| 在線閱讀: | http://hdl.handle.net/1721.1/67611 |
| _version_ | 1826211771303591936 |
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| author | Chapman, Alex J. (Alex Jacob) |
| author2 | Ahmed Ghoniem. |
| author_facet | Ahmed Ghoniem. Chapman, Alex J. (Alex Jacob) |
| author_sort | Chapman, Alex J. (Alex Jacob) |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011. |
| first_indexed | 2024-09-23T15:11:11Z |
| format | Thesis |
| id | mit-1721.1/67611 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T15:11:11Z |
| publishDate | 2011 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/676112019-04-12T09:52:36Z Biomass characterization and reduced order modeling of mixed-feedstock gasification Chapman, Alex J. (Alex Jacob) Ahmed Ghoniem. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011. Cataloged from PDF version of thesis. Includes bibliographical references (p. 88-90). There has been much effort to characterize and model coal for use in combustion and gasification. This work seeks to delineate the differences and similarities between biomass and coal, with emphasis on the state of the art in biomass pyrolysis/devolatilization modeling. An existing coal Entrained Flow Gasification (EFG) Reduced Order Model (ROM) was expanded to more accurately simulate the gasification of a mixed feedstock of biomass and coal. The GE 2700tpd gasifier was used because it is a widely used technology. The characteristics and state of the art in biomass conversion models were applied in the expanded ROM to model coal-biomass mixture gasification. Biomass has higher oxygen content and lower fixed carbon content than coal. Therefore, as results show, increasing the mass fraction of wood leads to a rise in temperature and drop in syngas heating value and Cold Gas Efficiency (CGE). The oxygen feed stream must be adjusted downward to maintain a constant temperature. Temperature change has the strongest effect on ash slag (lesser viscosity and thickness) while ash composition has a very small effect (greater viscosity and thickness). by Alex J. Chapman. S.M. 2011-12-09T21:32:19Z 2011-12-09T21:32:19Z 2011 2011 Thesis http://hdl.handle.net/1721.1/67611 765399806 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 90 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Chapman, Alex J. (Alex Jacob) Biomass characterization and reduced order modeling of mixed-feedstock gasification |
| title | Biomass characterization and reduced order modeling of mixed-feedstock gasification |
| title_full | Biomass characterization and reduced order modeling of mixed-feedstock gasification |
| title_fullStr | Biomass characterization and reduced order modeling of mixed-feedstock gasification |
| title_full_unstemmed | Biomass characterization and reduced order modeling of mixed-feedstock gasification |
| title_short | Biomass characterization and reduced order modeling of mixed-feedstock gasification |
| title_sort | biomass characterization and reduced order modeling of mixed feedstock gasification |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/67611 |
| work_keys_str_mv | AT chapmanalexjalexjacob biomasscharacterizationandreducedordermodelingofmixedfeedstockgasification |