Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance
A computational fluid dynamics (CFD) study of a partial combustion lance (PCL) was performed using a hybrid scale adaptive simulation (SAS) in this work. In addition, the unsteady Reynolds-averaged NavierStokes(URANS) simulations using the standard k-ε (SKE), realizable k-ε (RKE) and renormalized (R...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIDIC Servizi
2015
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/10215/1/Evaluation%20of%20the%20Unsteady%20Turbulence%20Modelling%20and%20Thermal%20Insulation%20on%20the%20Performance%20of%20Partial%20Combustion%20Lance.pdf |
| _version_ | 1825822416456122368 |
|---|---|
| author | Law, Woon Phui Jolius, Gimbun |
| author_facet | Law, Woon Phui Jolius, Gimbun |
| author_sort | Law, Woon Phui |
| collection | UMP |
| description | A computational fluid dynamics (CFD) study of a partial combustion lance (PCL) was performed using a hybrid scale adaptive simulation (SAS) in this work. In addition, the unsteady Reynolds-averaged NavierStokes(URANS) simulations using the standard k-ε (SKE), realizable k-ε (RKE) and renormalized (RNG)k-ε were performed for comparison purpose. Combustion was modelled using the species transport model, whereas the heat transfer was calculated using a combined convection-radiation boundary condition.
Suitability of various gradient methods (i.e., Green-Gauss node-based, Green-Gauss cell-based and least squares cell-based) to discretize the convection and diffusion terms in the governing equations were assessed by comparing the CFD prediction with experimentally measured temperature. It was found that SAS provided a better prediction of the PCL temperature with about 5.1 % of error from the experimental data. The Green-Gauss node-based method showed a better agreement compared to the two cell-based gradient methods. Installation of thermal insulation increased the peak temperature by about 9.4 %. The finding in this work indicated that CFD model is useful for retrofitting study of an existing PCL. |
| first_indexed | 2024-03-06T11:56:15Z |
| format | Article |
| id | UMPir10215 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T11:56:15Z |
| publishDate | 2015 |
| publisher | AIDIC Servizi |
| record_format | dspace |
| spelling | UMPir102152019-10-03T08:09:20Z http://umpir.ump.edu.my/id/eprint/10215/ Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance Law, Woon Phui Jolius, Gimbun TP Chemical technology A computational fluid dynamics (CFD) study of a partial combustion lance (PCL) was performed using a hybrid scale adaptive simulation (SAS) in this work. In addition, the unsteady Reynolds-averaged NavierStokes(URANS) simulations using the standard k-ε (SKE), realizable k-ε (RKE) and renormalized (RNG)k-ε were performed for comparison purpose. Combustion was modelled using the species transport model, whereas the heat transfer was calculated using a combined convection-radiation boundary condition. Suitability of various gradient methods (i.e., Green-Gauss node-based, Green-Gauss cell-based and least squares cell-based) to discretize the convection and diffusion terms in the governing equations were assessed by comparing the CFD prediction with experimentally measured temperature. It was found that SAS provided a better prediction of the PCL temperature with about 5.1 % of error from the experimental data. The Green-Gauss node-based method showed a better agreement compared to the two cell-based gradient methods. Installation of thermal insulation increased the peak temperature by about 9.4 %. The finding in this work indicated that CFD model is useful for retrofitting study of an existing PCL. AIDIC Servizi 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/10215/1/Evaluation%20of%20the%20Unsteady%20Turbulence%20Modelling%20and%20Thermal%20Insulation%20on%20the%20Performance%20of%20Partial%20Combustion%20Lance.pdf Law, Woon Phui and Jolius, Gimbun (2015) Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance. Chemical Engineering Transactions, 45. pp. 817-822. ISSN 2283-9216. (Published) http://www.aidic.it/cet/15/45/137.pdf DOI:10.330 3/CET1545137 |
| spellingShingle | TP Chemical technology Law, Woon Phui Jolius, Gimbun Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance |
| title | Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance |
| title_full | Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance |
| title_fullStr | Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance |
| title_full_unstemmed | Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance |
| title_short | Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance |
| title_sort | evaluation of the unsteady turbulence modelling and thermal insulation on the performance of partial combustion lance |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/10215/1/Evaluation%20of%20the%20Unsteady%20Turbulence%20Modelling%20and%20Thermal%20Insulation%20on%20the%20Performance%20of%20Partial%20Combustion%20Lance.pdf |
| work_keys_str_mv | AT lawwoonphui evaluationoftheunsteadyturbulencemodellingandthermalinsulationontheperformanceofpartialcombustionlance AT joliusgimbun evaluationoftheunsteadyturbulencemodellingandthermalinsulationontheperformanceofpartialcombustionlance |