| 超急速温升条件下水-丙酮沸腾研究 |
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| 引用本文： | 金仁喜,刘登瀛,华顺芳,张正芳. 超急速温升条件下水-丙酮沸腾研究[J]. 化学工程, 2002, 30(6): 30-32,49 |
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| 作者姓名： | 金仁喜 刘登瀛 华顺芳 张正芳 |
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| 作者单位： | 1. 海军工程大学,动力学院工程热物理教研室,湖北,武汉,430033
2. 中国科学院,工程热物理研究所,北京,100080 |
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| 基金项目： | 国家重点基础研究发展规划项目 (G2 0 0 0 0 2 630 5 )，中国科学院“九五”基础研究重大资助项目 (KJ95 1 B1 70 4) |
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| 摘 要： | 利用短脉冲激光加热浸没在水 丙酮非共沸工质中的铂薄膜电阻的方法 ,对不同体积配比的工质在超急速温升条件下的沸腾进行研究。研究表明 :往丙酮里加少量水后 ,可以使沸腾汽泡直径变小 ;纯水温度达到42 0K时仍未见到沸腾现象 ,往水里添加少量丙酮液体后混合液体工质里出现细小汽泡 ;往水 (丙酮 )中添加体积配比小于 0 .1的丙酮 (水 )时 ,最高热流密度都增大 ;要使铂薄膜最高温度尽量低 ,混合液体工质体积配比有个最佳值
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| 关 键 词： | 超急速温升 水-丙酮 沸腾 短脉冲激光 |
| 文章编号： | 1005-9954(2002)06-0030-03 |
Boiling of Water-Acetone Mixture under Rapid Temperature Rise |
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| JIN Ren-xi ,LIU Deng-ying ,HUA Shun-fang l,ZHANG Zheng-fang. Boiling of Water-Acetone Mixture under Rapid Temperature Rise[J]. Chemical Engineering, 2002, 30(6): 30-32,49 |
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| Authors: | JIN Ren-xi LIU Deng-ying HUA Shun-fang l ZHANG Zheng-fang |
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| Affiliation: | JIN Ren-xi 1,LIU Deng-ying 2,HUA Shun-fang l,ZHANG Zheng-fang 2 |
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| Abstract: | The platinum film resistor that is immerged in water-acetone mixture is heated by short pulsed-laser to investigate the mixture′s boiling behavior under rapid temperature rise condition. It shows that the vapor bubble in the mixture whose acetone volume fraction is smaller than that is in the distilled pure water. The tiny vapor bubbles appears when the water volume fraction is small in the mixture. Boiling does not happen in the distilled pure water even if it is heated to 420K. The max flux that is absorbed by mixture increases when the water or acetone′s volume fraction is less than 0.1. It exists an appropriate volume fraction to get low temperature of platinum film resistor. |
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| Keywords: | rapid temperature rise boiling water-acetone short pulsed-laser |
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