| 径向热质传递对瓶装物料冷冻干燥的影响 |
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| 引用本文： | 陈孟林,程江,涂伟萍,杨卓如,陈焕钦. 径向热质传递对瓶装物料冷冻干燥的影响[J]. 化工学报, 2002, 53(9): 951-956 |
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| 作者姓名： | 陈孟林 程江 涂伟萍 杨卓如 陈焕钦 |
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| 作者单位： | 广西师范大学资源与环境学系; 华南理工大学化学工程研究所 |
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| 基金项目： | 广西师范大学博士基金资助项目~~ |
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| 摘 要： | 基于经验证了的二维冻干模型对瓶装物料的冷冻干燥过程进行了数值计算 ,利用计算结果对径向热质传递的影响进行了分析 .结果表明 :瓶侧面的径向传热影响显著 ,但忽略水蒸气在径向上的传递作用不会给模拟计算结果带来明显误差 .
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| 关 键 词： | 侧面传热 径向传质 冷冻干燥 瓶装物料 二维冻干模型 |
| 文章编号： | 0438-1157(2002)09-0951-06 |
| 修稿时间： | 2000-11-21 |
EFFECTS OF RADIAL TRANSFERS OF HEAT AND MASS ON FREEZE-DRYING PROCESS OF MATERIALS IN VIALS |
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| CHEN Menglin,CHENG Jiang,TU Weiping,YANG Zhuoru,CHEN Huanqin. EFFECTS OF RADIAL TRANSFERS OF HEAT AND MASS ON FREEZE-DRYING PROCESS OF MATERIALS IN VIALS[J]. Journal of Chemical Industry and Engineering(China), 2002, 53(9): 951-956 |
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| Authors: | CHEN Menglin CHENG Jiang TU Weiping YANG Zhuoru CHEN Huanqin |
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| Abstract: | A comprehensive two-dimensional model for freeze-drying of materials in vials was presented and solved numerically by the authors,and was examined by experiments in previous works.By the use of the two-dimensional model,the numerical simulation of vial freeze-drying of skim milk is made in this paper.The effects of radial transfer of heat and mass on freeze-drying process of materials in vials are analyzed by using simulating results.The results show that the influence of side heat transfer on freeze-drying process is significant, but the effect of radial transfer of vapor can be ignored. |
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| Keywords: | side heat transfer radial mass transfer freeze-drying materials in vials |
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