Modeling the slag layer in solid fuel gasification and combustion -- Formulation and sensitivity analysis
A steady-state model has been developed to describe the flow and heat transfer characteristics of the slag layer in solid fuel gasification and combustion. The model incorporates a number of sub-models including one for particle capture, and takes into consideration the temperature and composition d...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier
2016
|
| Online Access: | http://hdl.handle.net/1721.1/105393 https://orcid.org/0000-0002-2104-3128 https://orcid.org/0000-0001-8730-272X |
| _version_ | 1826214742878846976 |
|---|---|
| author | Gazzino, Marco Yong, Sze Zheng Ghoniem, Ahmed F |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Gazzino, Marco Yong, Sze Zheng Ghoniem, Ahmed F |
| author_sort | Gazzino, Marco |
| collection | MIT |
| description | A steady-state model has been developed to describe the flow and heat transfer characteristics of the slag layer in solid fuel gasification and combustion. The model incorporates a number of sub-models including one for particle capture, and takes into consideration the temperature and composition dependent properties of slag, the contribution of momentum of captured particles and the possibility of slag resolidification. An equally important issue is the interaction of the particles colliding with the slag layer. High inertia particles tend to rebound whereas slower particles are trapped in the slag layer. Since only trapped particles are relevant to the slag layer build-up, a particle capture criterion for colliding particles is introduced. The model predicts the local thickness of the molten and the solid slag layers, the average slag velocity, the temperature distribution across the layer and the heat flux to the coolant, taking into account the influence of molten and resolidified slag layers coating the combustor or reactor wall. |
| first_indexed | 2024-09-23T16:10:46Z |
| format | Article |
| id | mit-1721.1/105393 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:10:46Z |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1053932022-09-29T18:47:03Z Modeling the slag layer in solid fuel gasification and combustion -- Formulation and sensitivity analysis Gazzino, Marco Yong, Sze Zheng Ghoniem, Ahmed F Massachusetts Institute of Technology. Department of Mechanical Engineering Yong, Sze Zheng Ghoniem, Ahmed F A steady-state model has been developed to describe the flow and heat transfer characteristics of the slag layer in solid fuel gasification and combustion. The model incorporates a number of sub-models including one for particle capture, and takes into consideration the temperature and composition dependent properties of slag, the contribution of momentum of captured particles and the possibility of slag resolidification. An equally important issue is the interaction of the particles colliding with the slag layer. High inertia particles tend to rebound whereas slower particles are trapped in the slag layer. Since only trapped particles are relevant to the slag layer build-up, a particle capture criterion for colliding particles is introduced. The model predicts the local thickness of the molten and the solid slag layers, the average slag velocity, the temperature distribution across the layer and the heat flux to the coolant, taking into account the influence of molten and resolidified slag layers coating the combustor or reactor wall. ENEL Ingegneria e Innovazione S.p.A 2016-11-21T21:54:21Z 2016-11-21T21:54:21Z 2011-07 2011-06 Article http://purl.org/eprint/type/JournalArticle 00162361 http://hdl.handle.net/1721.1/105393 Yong, Sze Zheng, Marco Gazzino, and Ahmed Ghoniem. "Modeling the slag layer in solid fuel gasification and combustion – Formulation and sensitivity analysis." Fuel 92:1 (February 2012), pp. 162-170. https://orcid.org/0000-0002-2104-3128 https://orcid.org/0000-0001-8730-272X en_US http://dx.doi.org/10.1016/j.fuel.2011.06.062 Fuel Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier Prof. Ghoniem via Angie Locknar |
| spellingShingle | Gazzino, Marco Yong, Sze Zheng Ghoniem, Ahmed F Modeling the slag layer in solid fuel gasification and combustion -- Formulation and sensitivity analysis |
| title | Modeling the slag layer in solid fuel gasification and combustion -- Formulation and sensitivity analysis |
| title_full | Modeling the slag layer in solid fuel gasification and combustion -- Formulation and sensitivity analysis |
| title_fullStr | Modeling the slag layer in solid fuel gasification and combustion -- Formulation and sensitivity analysis |
| title_full_unstemmed | Modeling the slag layer in solid fuel gasification and combustion -- Formulation and sensitivity analysis |
| title_short | Modeling the slag layer in solid fuel gasification and combustion -- Formulation and sensitivity analysis |
| title_sort | modeling the slag layer in solid fuel gasification and combustion formulation and sensitivity analysis |
| url | http://hdl.handle.net/1721.1/105393 https://orcid.org/0000-0002-2104-3128 https://orcid.org/0000-0001-8730-272X |
| work_keys_str_mv | AT gazzinomarco modelingtheslaglayerinsolidfuelgasificationandcombustionformulationandsensitivityanalysis AT yongszezheng modelingtheslaglayerinsolidfuelgasificationandcombustionformulationandsensitivityanalysis AT ghoniemahmedf modelingtheslaglayerinsolidfuelgasificationandcombustionformulationandsensitivityanalysis |