Experimental and Computaional Study of Compartmented Fluidized Bed Gasifier (CFBG)
A pilot scale (0.5 tones/day) air-blown compartmented fluidized bed gasifier (CFBG) consisting of two compartments, the combustor and the gasifier, operating at bubbling fluidized mode has been constructed for medium calorific value syngas (>11 MJ/Nm3) production from biomass. The hydrodynami...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
-
2008
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/18089 |
| _version_ | 1848749644269486080 |
|---|---|
| author | Wee, Siaw Chok, Vui Gorin, Alexander Chua, Han |
| author2 | - |
| author_facet | - Wee, Siaw Chok, Vui Gorin, Alexander Chua, Han |
| author_sort | Wee, Siaw |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A pilot scale (0.5 tones/day) air-blown compartmented fluidized bed gasifier (CFBG) consisting of two compartments, the combustor and the gasifier, operating at bubbling fluidized mode has been constructed for medium calorific value syngas (>11 MJ/Nm3) production from biomass. The hydrodynamics of CFBG is studied experimentally and computationally. The experiments are carried out in a custom-made transparent CFBG cold model. The computational fluid dynamics (CFD) software, FLUENT, is employed in modeling the fluidized bed containing monodispersed size Geldart B particles, river sand, of 272 ?m and 2620 kg/m3 in diameter and density respectively. A three-dimensional Eulerian-eulerian granular model with closure laws according to the kinetic theory of granular flow is chosen to simulate the multiphase environs at 0.2 ? 3.2 Umf.The CFD simulated results show reasonably well agreement with experimental results in terms of bed pressure drop, bed expansion ratio and minimum fluidization velocity. The experimentally determined average fluidization quality over the operating bed height range is approximately 0.8. |
| first_indexed | 2025-11-14T07:24:13Z |
| format | Conference Paper |
| id | curtin-20.500.11937-18089 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:24:13Z |
| publishDate | 2008 |
| publisher | - |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-180892017-01-30T12:05:54Z Experimental and Computaional Study of Compartmented Fluidized Bed Gasifier (CFBG) Wee, Siaw Chok, Vui Gorin, Alexander Chua, Han - Fluidized Bed Hydrodynamics Key Words: CFD Compartmented A pilot scale (0.5 tones/day) air-blown compartmented fluidized bed gasifier (CFBG) consisting of two compartments, the combustor and the gasifier, operating at bubbling fluidized mode has been constructed for medium calorific value syngas (>11 MJ/Nm3) production from biomass. The hydrodynamics of CFBG is studied experimentally and computationally. The experiments are carried out in a custom-made transparent CFBG cold model. The computational fluid dynamics (CFD) software, FLUENT, is employed in modeling the fluidized bed containing monodispersed size Geldart B particles, river sand, of 272 ?m and 2620 kg/m3 in diameter and density respectively. A three-dimensional Eulerian-eulerian granular model with closure laws according to the kinetic theory of granular flow is chosen to simulate the multiphase environs at 0.2 ? 3.2 Umf.The CFD simulated results show reasonably well agreement with experimental results in terms of bed pressure drop, bed expansion ratio and minimum fluidization velocity. The experimentally determined average fluidization quality over the operating bed height range is approximately 0.8. 2008 Conference Paper http://hdl.handle.net/20.500.11937/18089 - restricted |
| spellingShingle | Fluidized Bed Hydrodynamics Key Words: CFD Compartmented Wee, Siaw Chok, Vui Gorin, Alexander Chua, Han Experimental and Computaional Study of Compartmented Fluidized Bed Gasifier (CFBG) |
| title | Experimental and Computaional Study of Compartmented Fluidized Bed Gasifier (CFBG) |
| title_full | Experimental and Computaional Study of Compartmented Fluidized Bed Gasifier (CFBG) |
| title_fullStr | Experimental and Computaional Study of Compartmented Fluidized Bed Gasifier (CFBG) |
| title_full_unstemmed | Experimental and Computaional Study of Compartmented Fluidized Bed Gasifier (CFBG) |
| title_short | Experimental and Computaional Study of Compartmented Fluidized Bed Gasifier (CFBG) |
| title_sort | experimental and computaional study of compartmented fluidized bed gasifier (cfbg) |
| topic | Fluidized Bed Hydrodynamics Key Words: CFD Compartmented |
| url | http://hdl.handle.net/20.500.11937/18089 |