| 西芹热风干燥动力学研究 |
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| 引用本文： | 诸爱士,成忠. 西芹热风干燥动力学研究[J]. 农机化研究, 2007, 0(3): 139-142 |
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| 作者姓名： | 诸爱士 成忠 |
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| 作者单位： | 浙江科技学院,生物与化学工程学院,杭州,310012;浙江科技学院,生物与化学工程学院,杭州,310012 |
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| 摘 要： | 研究了一定条件下风速与风温对经烫漂预处理的西芹薄层热风干燥过程的影响,拟合了干燥曲线方程,并计算了临界含水量、传热膜系数α与传质系数kH等动力学参数.结果表明:干燥方程符合Page模型;随风速增大,α与kH均增大,但风温对两者影响不大.
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| 关 键 词： | 食品工业 西芹 试验 预处理 薄层干燥 动力学 模型 |
| 文章编号： | 1003-188X（2007）03-0139-04 |
| 收稿时间： | 2006-04-30 |
| 修稿时间： | 2006-04-30 |
Study on the Dynamics of Drying of West Celery with Heated Wind |
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| ZHU Ai-shi,CHENG Zhong. Study on the Dynamics of Drying of West Celery with Heated Wind[J]. Journal of Agricultural Mechanization Research, 2007, 0(3): 139-142 |
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| Authors: | ZHU Ai-shi CHENG Zhong |
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| Affiliation: | School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310012, China |
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| Abstract: | It has been studied that the influence of the wind speed and temperature on the dry course of thin layer of the west celery by pretreatment with hot air under certain condition. The dry curve equations were fitted. The dynamics parameter, including the critical water content , heat transmission membrane coefficient a , quality transmission coefficient kH, were calculated. The result shows that the dry equation accords with the Page model. As the wind speed rises, ct and kH were increased, but the wind temperature has a little effect on the two coefficient. |
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| Keywords: | food industry west celery experiment pretreatment thin layer drying dynamics model |
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