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| 烧结型多孔管在NaCl溶液中的传热与结垢特性 | |
| 引用本文： | 刘阿龙,徐宏,金伟,许佳寅,张莉. 烧结型多孔管在NaCl溶液中的传热与结垢特性[J]. 华东理工大学学报(自然科学版), 2009, 35(2) |
| 作者姓名： | 刘阿龙 徐宏 金伟 许佳寅 张莉 |
| 作者单位： | 1. 华东理工大学化学工程联合国家重点实验室,机械与动力工程学院,上海,200237;上海化工研究院,化学工程及装备研究所,上海,200062 2. 华东理工大学化学工程联合国家重点实验室,机械与动力工程学院,上海,200237 3. 上海化工研究院,化学工程及装备研究所,上海,200062 |
| 基金项目： | 上海市重点学科建设项目(B503);;国家863计划项目(2006AA05Z206) |
| 摘 要： | 采用强化传热因子、临界循环量和临界结垢浓度等分析方法,研究了烧结型白铜多孔管与白铜光滑管在NaCl溶液中的传热与结垢特性。建立了多孔管在NaCl溶液沸腾传热过程中气泡努塞尔数与气泡雷诺数、普兰特数和溶液浓度之间的关联式。结果表明:与光滑管相比,烧结型多孔管在不同浓度的溶液中都能明显提高其沸腾传热系数,最大可达到3.3倍。NaCl溶液的质量分数只要低于临界结垢质量分数,多孔管都具有抗垢性能。该关联式与实际情况相符,能较好地预测多孔管在NaCl溶液中的传热性能。 |
| 关 键 词： | 烧结型多孔管 NaCl溶液 沸腾传热 结垢 |
Heat Transfer and Fouling Characteristics of Sintered Porous Surface Tubes in NaCl Solution |
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| LIU A-long,XU Hong,JIN Wei,XU Jia-yin,ZHANG Li. Heat Transfer and Fouling Characteristics of Sintered Porous Surface Tubes in NaCl Solution[J]. Journal of East China University of Science and Technology, 2009, 35(2) | |
| Authors: | LIU A-long XU Hong JIN Wei XU Jia-yin ZHANG Li |
| Affiliation: | 1;2;1.State Key Laboratory of Chemical Engineering;School of Mechanical and Power Engineering;East China University of Science and Technology;Shanghai 200237;China;2.Chemical Engineering and Equipment Division;Shanghai Research Institute of Chemical Industry;Shanghai 200062;China |
| Abstract: | The characteristics of heat transfer and fouling of sintered porous surface tube(SPST) heated(electrically) in NaCl solution were investigated.Mathematical model of heat transfer was constructed(about) Nusselt number,Reynolds number,Prandtl number and mass fraction of NaCl solution.The results show that sintered porous surface tubes have better properties of enhanced heat transfer than that of smooth(surface) tubes(SST) in NaCl solution.Furthermore,NaCl fouling won't deposit on the surface of SPST as long a... |
| Keywords: | sintered porous surface tube NaCl solution boiling heat transfer fouling |
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