| 污垢热阻动态监测装置及其传热计算方法的研究 |
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| 引用本文： | 全贞花,陈永昌,王春明,李兵,马重芳.污垢热阻动态监测装置及其传热计算方法的研究[J].工程热物理学报,2007,28(2):322-324. |
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| 作者姓名： | 全贞花 陈永昌 王春明 李兵 马重芳 |
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| 作者单位： | 北京工业大学环境与能源工程学院"传热强化与过程节能"教育部重点实验室,北京,100022 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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北京市优秀人才培养基金 |
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| 摘 要： | 介绍了污垢热阻动态监测装置的构成及特点.根据传热学基本原理,对该套装置进行了光滑管对流换热性能测试,结果表明两侧流体热平衡最大偏差小于10%,实验结果与经验公式计算的Nu数相吻合,其最大偏差小于l0%.用该装置进行换热表面污垢的动态自动监测,可以得出准确可靠的实验结果.
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| 关 键 词： | 污垢热阻 动态监测 对流换热 |
| 文章编号： | 0253-231X(2007)02-0322-03 |
| 修稿时间： | 2006年12月12 |
DEVELOPMENT OF ON-LINE MONITORING APPARATUS OF FOULING THERMAL RESISTANCE AND ITS CACULATION METHOD OF HEAT TRANSFER |
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| QUAN Zhen-Hua,CHEN Yong-Chang,WANG Chun-Ming,LI Bing,MA Chong-Fang.DEVELOPMENT OF ON-LINE MONITORING APPARATUS OF FOULING THERMAL RESISTANCE AND ITS CACULATION METHOD OF HEAT TRANSFER[J].Journal of Engineering Thermophysics,2007,28(2):322-324. |
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| Authors: | QUAN Zhen-Hua CHEN Yong-Chang WANG Chun-Ming LI Bing MA Chong-Fang |
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| Abstract: | In this paper,an on-line mornitoring apparatus of fouling thermal resistance is introduced, including its structure and performance.Based on the fundamentals of heat transfer,heat transfer performance was tested using smooth tube.As a result,the heat balance deviations of two sides' water were no more than 10 percent.Experimental turbulent flow heat transfer Nusselt numbers agreed with the predicted values within 10%.Accordingly,the system is reliable to be used to monitor the fouling process of heat transfer surface |
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| Keywords: | fouling thermal resistance on-line monitoring heat transfer |
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