Comparative, numerical, and experimental study of the influence of infrared radiation on a radiative-convective drying system for kaolin clay
This study investigates the effect of radiation intensity on the drying of kaolin clay using a redesigned radiative-convective dryer set. The convective and hybrid drying curves are evaluated, and the radiant system is characterized through numerical and experimental analysis of the view factor prof...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23006354 |
| _version_ | 1797729884610494464 |
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| author | Alejandro Restrepo Román Iván D. Bedoya Andrés A. Amell |
| author_facet | Alejandro Restrepo Román Iván D. Bedoya Andrés A. Amell |
| author_sort | Alejandro Restrepo Román |
| collection | DOAJ |
| description | This study investigates the effect of radiation intensity on the drying of kaolin clay using a redesigned radiative-convective dryer set. The convective and hybrid drying curves are evaluated, and the radiant system is characterized through numerical and experimental analysis of the view factor profile and radiation contour by discrete ordinates model (DOM). The results demonstrate that radiation intensity and air velocity have a greater impact on the drying process than the air temperature. Notably, the air velocity is particularly influential at 2 m/s. A multivariate linear regression model is developed to represent the relationship between these variables with an R2 coefficient of determination of 82%. Under optimal hybrid drying conditions (air velocity: 2 m/s, air temperature: 40 °C, radiation intensity: 6.8 kW/m2), the mass flux is 15.1 times higher compared to convective drying conditions. Additionally, the discrete ordinates model accurately captures the behavior of radiation distribution in the 2D study, highlighting the need for further investigation in 3D to address magnitude of radiation deviations. These findings have significant implications for optimizing the drying process of kaolin clay and provide insights for the design of more efficient drying systems, as well as suggesting further research on the simulation and simplification of phenomena involving radiation heat transfer. |
| first_indexed | 2024-03-12T11:36:08Z |
| format | Article |
| id | doaj.art-0dbe5cee8a504b4aba04a1af83f1f479 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-12T11:36:08Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-0dbe5cee8a504b4aba04a1af83f1f4792023-09-01T05:01:53ZengElsevierCase Studies in Thermal Engineering2214-157X2023-09-0149103329Comparative, numerical, and experimental study of the influence of infrared radiation on a radiative-convective drying system for kaolin clayAlejandro Restrepo Román0Iván D. Bedoya1Andrés A. Amell2El Grupo de Ciencia y Tecnología del Gas y Uso Eficiente y Racional de la Energía, Facultad de Ingeniería, Universidad de Antioquia, Calle 67 N° 53 – 108, Bloque 19 – 000, Medellín, ColombiaEl Grupo de Ciencia y Tecnología del Gas y Uso Eficiente y Racional de la Energía, Facultad de Ingeniería, Universidad de Antioquia, Calle 67 N° 53 – 108, Bloque 19 – 000, Medellín, ColombiaCorresponding author.; El Grupo de Ciencia y Tecnología del Gas y Uso Eficiente y Racional de la Energía, Facultad de Ingeniería, Universidad de Antioquia, Calle 67 N° 53 – 108, Bloque 19 – 000, Medellín, ColombiaThis study investigates the effect of radiation intensity on the drying of kaolin clay using a redesigned radiative-convective dryer set. The convective and hybrid drying curves are evaluated, and the radiant system is characterized through numerical and experimental analysis of the view factor profile and radiation contour by discrete ordinates model (DOM). The results demonstrate that radiation intensity and air velocity have a greater impact on the drying process than the air temperature. Notably, the air velocity is particularly influential at 2 m/s. A multivariate linear regression model is developed to represent the relationship between these variables with an R2 coefficient of determination of 82%. Under optimal hybrid drying conditions (air velocity: 2 m/s, air temperature: 40 °C, radiation intensity: 6.8 kW/m2), the mass flux is 15.1 times higher compared to convective drying conditions. Additionally, the discrete ordinates model accurately captures the behavior of radiation distribution in the 2D study, highlighting the need for further investigation in 3D to address magnitude of radiation deviations. These findings have significant implications for optimizing the drying process of kaolin clay and provide insights for the design of more efficient drying systems, as well as suggesting further research on the simulation and simplification of phenomena involving radiation heat transfer.http://www.sciencedirect.com/science/article/pii/S2214157X23006354Drying tunnelInfrared radiationConvective heat transferClayHybrid dryingNumerical simulation |
| spellingShingle | Alejandro Restrepo Román Iván D. Bedoya Andrés A. Amell Comparative, numerical, and experimental study of the influence of infrared radiation on a radiative-convective drying system for kaolin clay Case Studies in Thermal Engineering Drying tunnel Infrared radiation Convective heat transfer Clay Hybrid drying Numerical simulation |
| title | Comparative, numerical, and experimental study of the influence of infrared radiation on a radiative-convective drying system for kaolin clay |
| title_full | Comparative, numerical, and experimental study of the influence of infrared radiation on a radiative-convective drying system for kaolin clay |
| title_fullStr | Comparative, numerical, and experimental study of the influence of infrared radiation on a radiative-convective drying system for kaolin clay |
| title_full_unstemmed | Comparative, numerical, and experimental study of the influence of infrared radiation on a radiative-convective drying system for kaolin clay |
| title_short | Comparative, numerical, and experimental study of the influence of infrared radiation on a radiative-convective drying system for kaolin clay |
| title_sort | comparative numerical and experimental study of the influence of infrared radiation on a radiative convective drying system for kaolin clay |
| topic | Drying tunnel Infrared radiation Convective heat transfer Clay Hybrid drying Numerical simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23006354 |
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