Transient thermal analysis of a kiln using different numerical approaches by means of CFD
A transient study for the prediction of the temperature of hot gases inside a kiln loaded with bricks, using Computational Fluid Dynamics (CFD), is presented in this work. The prediction of transient thermal performance is obtained through four different approaches: the Properties Fitted to Temperat...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24014722 |
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| author | S. Alonso-Romero J. Arturo Alfaro-Ayala José Eduardo Frias-Chimal J.J. Ramírez-Minguela Oscar A. López-Núñez |
| author_facet | S. Alonso-Romero J. Arturo Alfaro-Ayala José Eduardo Frias-Chimal J.J. Ramírez-Minguela Oscar A. López-Núñez |
| author_sort | S. Alonso-Romero |
| collection | DOAJ |
| description | A transient study for the prediction of the temperature of hot gases inside a kiln loaded with bricks, using Computational Fluid Dynamics (CFD), is presented in this work. The prediction of transient thermal performance is obtained through four different approaches: the Properties Fitted to Temperature Polynomials (PFTP) model, the density changes according to the Boussinesq Approximation (BA) model with a Constant Thermal Expansion Coefficient (CTEC), the BA model with a Variable Thermal Expansion Coefficient (VTEC) and the density changes according to the Ideal Gas Law (IGL) model. Furthermore, the effects of a layer of ceramic fiber as insulation are investigated. The numerical results of the transient temperature of the hot gases inside the kiln were validated with experimental data. The mean relative error of the transient temperature was 5.0 %, 32.6 %, 26.4 % and 4.4 % for the PFTP model, BA model with a CTEC, BA model with a VTEC and IGL model, respectively. It was concluded that IGL model is the best approach to predict the transient temperature of the kiln. Finally, an increase in the temperature of the hot gases of 12.7 % was obtained by applying the IGL model and using a layer of 0.07 m of ceramic fiber as insulation. The results of this work could be helpful to improve the design and performance of kilns in further works. |
| format | Article |
| id | doaj-art-ffdb28d901424be385dd53c35f9bf2c7 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-ffdb28d901424be385dd53c35f9bf2c72024-12-07T08:26:34ZengElsevierCase Studies in Thermal Engineering2214-157X2024-12-0164105441Transient thermal analysis of a kiln using different numerical approaches by means of CFDS. Alonso-Romero0J. Arturo Alfaro-Ayala1José Eduardo Frias-Chimal2J.J. Ramírez-Minguela3Oscar A. López-Núñez4CIATEC, A.C., Centro de Innovación Aplicada en Tecnologías Competitivas, Omega 201, Col. Industrial Delta, C.P.37545, León, Guanajuato, MexicoCIATEC, A.C., Centro de Innovación Aplicada en Tecnologías Competitivas, Omega 201, Col. Industrial Delta, C.P.37545, León, Guanajuato, Mexico; Department of Chemical Engineering, University of Guanajuato, DCNE, Col. Noria Alta s/n, C. P. 36050, Guanajuato, Gto., Mexico; Corresponding author. CIATEC, A.C., Centro de Innovación Aplicada en Tecnologías Competitivas. Omega 201, Col. Industrial Delta, C.P. 37545, León, Guanajuato, Mexico.CIATEC, A.C., Centro de Innovación Aplicada en Tecnologías Competitivas, Omega 201, Col. Industrial Delta, C.P.37545, León, Guanajuato, MexicoDepartment of Chemical Engineering, University of Guanajuato, DCNE, Col. Noria Alta s/n, C. P. 36050, Guanajuato, Gto., MexicoFacultad de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juarez S/N, Mexicali, C.P. 21280, California, MexicoA transient study for the prediction of the temperature of hot gases inside a kiln loaded with bricks, using Computational Fluid Dynamics (CFD), is presented in this work. The prediction of transient thermal performance is obtained through four different approaches: the Properties Fitted to Temperature Polynomials (PFTP) model, the density changes according to the Boussinesq Approximation (BA) model with a Constant Thermal Expansion Coefficient (CTEC), the BA model with a Variable Thermal Expansion Coefficient (VTEC) and the density changes according to the Ideal Gas Law (IGL) model. Furthermore, the effects of a layer of ceramic fiber as insulation are investigated. The numerical results of the transient temperature of the hot gases inside the kiln were validated with experimental data. The mean relative error of the transient temperature was 5.0 %, 32.6 %, 26.4 % and 4.4 % for the PFTP model, BA model with a CTEC, BA model with a VTEC and IGL model, respectively. It was concluded that IGL model is the best approach to predict the transient temperature of the kiln. Finally, an increase in the temperature of the hot gases of 12.7 % was obtained by applying the IGL model and using a layer of 0.07 m of ceramic fiber as insulation. The results of this work could be helpful to improve the design and performance of kilns in further works.http://www.sciencedirect.com/science/article/pii/S2214157X24014722Transient stateThermal analysisBrick kilnNumerical modelsCFD |
| spellingShingle | S. Alonso-Romero J. Arturo Alfaro-Ayala José Eduardo Frias-Chimal J.J. Ramírez-Minguela Oscar A. López-Núñez Transient thermal analysis of a kiln using different numerical approaches by means of CFD Case Studies in Thermal Engineering Transient state Thermal analysis Brick kiln Numerical models CFD |
| title | Transient thermal analysis of a kiln using different numerical approaches by means of CFD |
| title_full | Transient thermal analysis of a kiln using different numerical approaches by means of CFD |
| title_fullStr | Transient thermal analysis of a kiln using different numerical approaches by means of CFD |
| title_full_unstemmed | Transient thermal analysis of a kiln using different numerical approaches by means of CFD |
| title_short | Transient thermal analysis of a kiln using different numerical approaches by means of CFD |
| title_sort | transient thermal analysis of a kiln using different numerical approaches by means of cfd |
| topic | Transient state Thermal analysis Brick kiln Numerical models CFD |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24014722 |
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