Research on High-quality Storage of Paddy based on Multi-Physical Field Analysis
Based on the mathematical model of internal air flow, heat and humidity coupled transfer in paddy grain piles, while combined with the dynamic model of paddy yellowing, the paper adopted the method of numerical simulation to compare and study the variation of temperature, moisture content and paddy...
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| Format: | Article |
| Language: | English |
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Academy of National Food and Strategic Reserves Administration
2022-11-01
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| Series: | Liang you shipin ke-ji |
| Subjects: | |
| Online Access: | http://lyspkj.ijournal.cn/lyspkj/article/abstract/20220624?st=article_issue |
| _version_ | 1797895365379227648 |
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| author | LIU Jia-qi YANG Kai-min YU Hai WANG Yuan-cheng YANG Tai LI Jia-bin |
| author_facet | LIU Jia-qi YANG Kai-min YU Hai WANG Yuan-cheng YANG Tai LI Jia-bin |
| author_sort | LIU Jia-qi |
| collection | DOAJ |
| description | Based on the mathematical model of internal air flow, heat and humidity coupled transfer in paddy grain piles, while combined with the dynamic model of paddy yellowing, the paper adopted the method of numerical simulation to compare and study the variation of temperature, moisture content and paddy yellowing in the stored grain inside the shallow round warehouse under the conditions of annual natural storage and staged natural storage. On the basis of temperature and humidity, this paper further considered the yellowing effect on the quality of long-term storage of paddy. The results showed that, at the end of storage for 365 days, the average temperature of staged natural storage with ventilation was about 18 ℃ lower than that of natural storage throughout the year, the average moisture was about 0.5% lower, and the average yellowing value was about 0.8 lower. Low temperature air flowling into the high temperature granary could not only reduce the temperature, but also reduce the grain moisture and alleviate the process of paddy yellowing, so the phased natural storage was more conducive to the long-term quality storage of paddy. The rice near the warehouse wall was easily affected by the external ambient temperature, and the coating could be applied on the outside of the warehouse wall to reduce the influence of solar radiation. |
| first_indexed | 2024-04-10T07:25:27Z |
| format | Article |
| id | doaj.art-b71250bba86e421f9ff1e6de110b8ca8 |
| institution | Directory Open Access Journal |
| issn | 1007-7561 |
| language | English |
| last_indexed | 2024-04-10T07:25:27Z |
| publishDate | 2022-11-01 |
| publisher | Academy of National Food and Strategic Reserves Administration |
| record_format | Article |
| series | Liang you shipin ke-ji |
| spelling | doaj.art-b71250bba86e421f9ff1e6de110b8ca82023-02-24T08:43:24ZengAcademy of National Food and Strategic Reserves AdministrationLiang you shipin ke-ji1007-75612022-11-0130618118910.16210/j.cnki.1007-7561.2022.06.023Research on High-quality Storage of Paddy based on Multi-Physical Field AnalysisLIU Jia-qi0YANG Kai-min1YU Hai2WANG Yuan-cheng3YANG Tai4LI Jia-bin5Department of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, ChinaDepartment of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, ChinaDepartment of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, ChinaDepartment of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, ChinaDepartment of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, ChinaDepartment of Thermal Engineering, Shandong Jianzhu University, Jinan, Shandong 250101, ChinaBased on the mathematical model of internal air flow, heat and humidity coupled transfer in paddy grain piles, while combined with the dynamic model of paddy yellowing, the paper adopted the method of numerical simulation to compare and study the variation of temperature, moisture content and paddy yellowing in the stored grain inside the shallow round warehouse under the conditions of annual natural storage and staged natural storage. On the basis of temperature and humidity, this paper further considered the yellowing effect on the quality of long-term storage of paddy. The results showed that, at the end of storage for 365 days, the average temperature of staged natural storage with ventilation was about 18 ℃ lower than that of natural storage throughout the year, the average moisture was about 0.5% lower, and the average yellowing value was about 0.8 lower. Low temperature air flowling into the high temperature granary could not only reduce the temperature, but also reduce the grain moisture and alleviate the process of paddy yellowing, so the phased natural storage was more conducive to the long-term quality storage of paddy. The rice near the warehouse wall was easily affected by the external ambient temperature, and the coating could be applied on the outside of the warehouse wall to reduce the influence of solar radiation.http://lyspkj.ijournal.cn/lyspkj/article/abstract/20220624?st=article_issuenatural storageventilationtemperaturemoistureyellowing |
| spellingShingle | LIU Jia-qi YANG Kai-min YU Hai WANG Yuan-cheng YANG Tai LI Jia-bin Research on High-quality Storage of Paddy based on Multi-Physical Field Analysis Liang you shipin ke-ji natural storage ventilation temperature moisture yellowing |
| title | Research on High-quality Storage of Paddy based on Multi-Physical Field Analysis |
| title_full | Research on High-quality Storage of Paddy based on Multi-Physical Field Analysis |
| title_fullStr | Research on High-quality Storage of Paddy based on Multi-Physical Field Analysis |
| title_full_unstemmed | Research on High-quality Storage of Paddy based on Multi-Physical Field Analysis |
| title_short | Research on High-quality Storage of Paddy based on Multi-Physical Field Analysis |
| title_sort | research on high quality storage of paddy based on multi physical field analysis |
| topic | natural storage ventilation temperature moisture yellowing |
| url | http://lyspkj.ijournal.cn/lyspkj/article/abstract/20220624?st=article_issue |
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