在实验室干燥炉中对米的3D空气流和温度均性的模拟分析
Changzhi Wang1, Yongsheng Pei1, Zhongqiu Mu2
1College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
Foods (Basel, Switzerland)
|November 9, 2024
概括
优化大米的对流干燥需要仔细考虑空气流. 空气出口的战略位置显著改善了温度均性,并缩短了干燥时间.
科学领域:
- 农业工程 农业工程
- 食品科学 食品科学 食品科学
- 热力学是一种热力学.
背景情况:
- 对流式干燥对于保持米质量至关重要.
- 均的温度分布是有效和一致的干燥的关键.
- 空气流动力学在干燥过程中显著影响热量和质量转移.
研究的目的:
- 分析空气流特性对米温度分布和干燥均性的影响.
- 研究进出口位置对对流动干燥效率的影响.
- 开发和验证一个模拟模型用于米干燥.
主要方法:
- 使用COMSOL多物理 6.1.1. 的数值模拟.
- 对不同气流输入和输出配置的分析.
- 对模拟结果与实验数据 (R2值>0.96) 的验证.
主要成果:
- 空气流的方向和出口位置极大地影响了田温度的均性.
- 一个特定的配置 (左侧出口,垂直方向入口) 减少了温度差异和加速了平衡.
- 状结构影响了干燥机内的空气流和温度分布.
结论:
- 模拟模型准确地表示了米干燥的动态.
- 最佳的空气流设计,特别是出口位置,提高了干燥均性和效率.
- 这些发现为设计改进的谷物干燥机提供了技术基础.
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