| 仓内谷物通风干燥过程的孔道网络模型 |
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| 引用本文： | 袁越锦,徐英英,刘相东.仓内谷物通风干燥过程的孔道网络模型[J].农业机械学报,2009,40(8):115-118. |
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| 作者姓名： | 袁越锦 徐英英 刘相东 |
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| 作者单位： | 1. 陕西科技大学机电工程学院,西安,710021
2. 中国农业大学工学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目，陕西科技大学科研启动基金资助项目 |
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| 摘 要： | 以仓内玉米堆为研究对象,运用孔道网络方法和传递过程原理等知识,建立了考虑颗粒自身热质传递、孔隙气相对流、温度梯度和孔道结构特征等因素的仓内谷物通风干燥孔道网络模型.该模型具有易拓展,干燥变量信息全面,可直接输入物料结构特征参数来模拟预测干燥特性等优点.
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| 关 键 词： | 谷物 干燥 孔道网络模型 双尺度 |
Model for Drying of Corn Material in Bin |
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| Yuan Yuejin,Xu Yingying,Liu Xiangdong.Model for Drying of Corn Material in Bin[J].Transactions of the Chinese Society of Agricultural Machinery,2009,40(8):115-118. |
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| Authors: | Yuan Yuejin Xu Yingying Liu Xiangdong |
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| Institution: | 1.College of Mechanical & Electrical Engineering;Shaanxi University of Science & Technology;Xi'an 710021;China2.College of Engineering;China Agricultural University;Beijing 100083;China |
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| Abstract: | Taking the corn material in bin as the study object,a pore network model for the corn drying was developed by applying the theories of drainage and percolation through porous media and transport-process.Various factors for the drying process,such as the heat and mass transfer in grain itself,vapor-phase convection,temperature gradient,as well as physical structure characteristic were considered into this model.Five independent variables were involved in this model,which was able to describe the drying proce... |
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| Keywords: | Corn material Drying Pore network model Dual-scale |
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