| 液氮浴中不锈钢板动态冷却过程试验及模拟分析 |
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| 引用本文： | 金滔,陈鹏翔,汤珂,夏雨亮,张晓忠,陈佑军. 液氮浴中不锈钢板动态冷却过程试验及模拟分析[J]. 低温工程, 2007, 0(1): 21-25 |
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| 作者姓名： | 金滔 陈鹏翔 汤珂 夏雨亮 张晓忠 陈佑军 |
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| 作者单位： | 浙江大学制冷与低温研究所,杭州,310027;保一集团有限公司,温州,325105 |
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| 基金项目： | 温州市科技计划重大项目 |
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| 摘 要： | 以液氮为介质，通过测量不锈钢平板试件在液氮浴中的动态温度分布，在实测降温曲线同根据经验公式模拟得到的降温曲线进行对比的基础上，对低温沸腾换热过程中临界热流密度和最小膜态沸腾热流密度所对应的温差进行了修正，为更准确地模拟深冷处理中的降温过程提供了指导。利用修正参数对不锈钢平板进行了模拟分析。
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| 关 键 词： | 深冷处理 动态冷却 ANSYS数值模拟 |
| 文章编号： | 1000-6516（2007）01-0021-05 |
| 修稿时间： | 2006-09-092006-12-18 |
Experiments and numerical simulation of dynamic cool-down process of stainless steel plate in liquid nitrogen bath |
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| Jin Tao,Chen Pengxiang,Tang Ke,Xia Yuliang,Zhang Xiaozhong,Chen Youjun. Experiments and numerical simulation of dynamic cool-down process of stainless steel plate in liquid nitrogen bath[J]. Cryogenics, 2007, 0(1): 21-25 |
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| Authors: | Jin Tao Chen Pengxiang Tang Ke Xia Yuliang Zhang Xiaozhong Chen Youjun |
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| Affiliation: | 1, Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027,China;2, Baoyi Group Co. Ltd. , Wenzhou 325105, China |
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| Abstract: | With liquid nitrogen as coolant, a stainless steel plate emerged into the bath has been observed for dynamic temperature profile. The calculated results based on the experiential equations summa- rized from literatures with the measured cool-down curves. Some revisions have been made for the temperature differences corresponding to the critical heat flux density and minimum film boiling heat flux density re- spectively. The revised experiential equations of heat transfer coefficient help to simulate and analyze the dynamic heat transfer more accurately during the cryogenic treatment. The numerical simulation with revised parameters was carried out for the stainless steel plate. |
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| Keywords: | cryogenic treatment dynamic cooling numerical simulation with ANSYS |
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