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| 真空冷却过程的机理分析 | |
| 引用本文： | 金听祥,李改莲,徐烈,范少芳.真空冷却过程的机理分析[J].真空与低温,2005,11(2):116-120. |
| 作者姓名： | 金听祥 李改莲 徐烈 范少芳 |
| 作者单位： | 1. 上海交通大学,制冷与低温工程研究所,上海,200030 2. 郑州轻工业学院,河南,郑州,450002 3. 洛阳市宜阳县发展与改革委员会,河南,洛阳,471600 |
| 摘 要： | 真空冷却过程是复杂的相变传热传质过程,该过程涉及到扩散、传热、传质和相变等机理.在能量和质量守恒的基础上,经过适当的简化,建立了真空冷却过程中的数学模型.通过对结果分析发现,数值模拟的结果与实验数据吻合很好,误差在5%以内.数学模型可以准确预测真空冷却过程中的温度变化和质量损失,将有助于进一步理解和研究真空冷却机理. |
| 关 键 词： | 真空冷却 传热传质 数学模型 |
| 文章编号： | 1006-7086(2005)02-0116-05 |
| 修稿时间： | 2005年1月11日 |
ANALYSIS ON THE MECHANISM OF VACUUM COOLING PROCESS |
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| JIN Ting-xiang,LI Gai-lian,XU Lie,FAN Shao-fang.ANALYSIS ON THE MECHANISM OF VACUUM COOLING PROCESS[J].Vacuum and Cryogenics,2005,11(2):116-120. | |
| Authors: | JIN Ting-xiang LI Gai-lian XU Lie FAN Shao-fang |
| Abstract: | Vacuum cooling is a complicated heat and mass transfer process supported by various theories such as dif-fusion,heat transfer,mass transfe r and phase change.Based on the conse rvation of mass and energy,a simplif ied mathe-matical model was developed to predi ct the variations of temperature and mass loss during vacuum cooling.The predicted temperature variations and mass loss are compared with the measured valu es.It showed that the simulation results agreed with the experimental data well.The deviation between the simulated and the e xperimental mass loss is about 5%.The mathe-matical model can be used to predict t he variations of temperature and mass loss for understanding the mechani sm of vacuum cooling. |
| Keywords: | vacuum cooling heat and mass transfer mathematical model |
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