Development and verification of a simulation model for paddy drying with different flatbed dryers
This research developed a computer-based simulation model applicable for conventional and reversible airflow flatbed dryers, which can be used to predict the optimized time for mixing paddy (for the conventional flatbed dryer) and reversing the drying air (for the reversible air flatbed dryer). The...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Informa UK Limited
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/164796 |
| _version_ | 1855513558782050304 |
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| author | Van Hung, Nguyen Martinez, Romualdo Tuan, Tran Van Gummert, Martin |
| author_browse | Gummert, Martin Martinez, Romualdo Tuan, Tran Van Van Hung, Nguyen |
| author_facet | Van Hung, Nguyen Martinez, Romualdo Tuan, Tran Van Gummert, Martin |
| author_sort | Van Hung, Nguyen |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This research developed a computer-based simulation model applicable for conventional and reversible airflow flatbed dryers, which can be used to predict the optimized time for mixing paddy (for the conventional flatbed dryer) and reversing the drying air (for the reversible air flatbed dryer). The developed software has the ability of simulating the paddy moisture content and temperature based on the input parameters of ambient (temperature and relative humidity) and drying air (temperature and airflow rate), dimensions of the dryers, and input grain properties and weight. The model was verified based on data collected from actual paddy drying practices in Vietnam from 1994 to 2015. Relative errors between modeled and measured moisture content of paddy varied for different stages of the drying process and different dryer capacities. On average, the error was highest at the middle stage of the drying processes. This error increased gradually during the early two-thirds stage of the drying process and reached 19% and 14% for the conventional and reversible air flatbed dryers, respectively. On the other hand, these errors decreased to less than 10% at the end of the drying process. Accurate prediction of optimized machine operating time determines the uniformity of the final moisture content of paddy between top and bottom layers, improving energy efficiency, and reducing postharvest losses and drying cost |
| format | Journal Article |
| id | CGSpace164796 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1647962025-05-14T10:23:47Z Development and verification of a simulation model for paddy drying with different flatbed dryers Van Hung, Nguyen Martinez, Romualdo Tuan, Tran Van Gummert, Martin drying flatbed dryers simulation models This research developed a computer-based simulation model applicable for conventional and reversible airflow flatbed dryers, which can be used to predict the optimized time for mixing paddy (for the conventional flatbed dryer) and reversing the drying air (for the reversible air flatbed dryer). The developed software has the ability of simulating the paddy moisture content and temperature based on the input parameters of ambient (temperature and relative humidity) and drying air (temperature and airflow rate), dimensions of the dryers, and input grain properties and weight. The model was verified based on data collected from actual paddy drying practices in Vietnam from 1994 to 2015. Relative errors between modeled and measured moisture content of paddy varied for different stages of the drying process and different dryer capacities. On average, the error was highest at the middle stage of the drying processes. This error increased gradually during the early two-thirds stage of the drying process and reached 19% and 14% for the conventional and reversible air flatbed dryers, respectively. On the other hand, these errors decreased to less than 10% at the end of the drying process. Accurate prediction of optimized machine operating time determines the uniformity of the final moisture content of paddy between top and bottom layers, improving energy efficiency, and reducing postharvest losses and drying cost 2019-01-02 2024-12-19T12:54:19Z 2024-12-19T12:54:19Z Journal Article https://hdl.handle.net/10568/164796 en Open Access Informa UK Limited Hung, Nguyen Van; Martinez, Romualdo; Tuan, Tran Van and Gummert, Martin. 2019. Development and verification of a simulation model for paddy drying with different flatbed dryers. Plant Production Science, Volume 22 no. 1 p. 119-130 |
| spellingShingle | drying flatbed dryers simulation models Van Hung, Nguyen Martinez, Romualdo Tuan, Tran Van Gummert, Martin Development and verification of a simulation model for paddy drying with different flatbed dryers |
| title | Development and verification of a simulation model for paddy drying with different flatbed dryers |
| title_full | Development and verification of a simulation model for paddy drying with different flatbed dryers |
| title_fullStr | Development and verification of a simulation model for paddy drying with different flatbed dryers |
| title_full_unstemmed | Development and verification of a simulation model for paddy drying with different flatbed dryers |
| title_short | Development and verification of a simulation model for paddy drying with different flatbed dryers |
| title_sort | development and verification of a simulation model for paddy drying with different flatbed dryers |
| topic | drying flatbed dryers simulation models |
| url | https://hdl.handle.net/10568/164796 |
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