Local heat transfer performance of shell side of axial-flow shell-and-tube heat exchanger with MPC

被引：0
|
作者：
Zeng W.-L. [1 ]
Deng X.-H. [1 ]
Li Z.-W. [1 ]
机构：
[1] Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, South China University of Technology, Guangzhou 510640, Guangdong
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2010年 / 38卷 / 02期
关键词：
Axial-flow shell-and-tube heat exchanger; Distributed baffle; Local heat transfer coefficient; Multi-parallel-channel inlet/outlet;
D O I：
10.3969/j.issn.1000-565X.2010.02.004
中图分类号：
学科分类号：
摘要：
In this paper, the local heat transfer performance of the shell side of an axial-flow shell-and-tube heat exchanger with multi-parallel-channel inlet/outlet (MPC) was experimentally studied, with or without distributed baffles being set in the inlet region at the shell side. The investigation includes such aspects as (1) the distribution of local surface Nusselt number (Nu) in the inlet region; (2) the correlation between the local-mean surface Nusselt number and the tube bundle location as well as the Reynolds number (Re); (3) the variations of mean Nusselt number and Reynolds number of the inlet region and the heat exchanger; (4) the distribution rule of the local surface Nusselt number of the inlet region at the shell side; and (5) a reasonable mechanism analysis of the above-mentioned statements. The results indicate that distributed baffles effectively improve the fluid flow distribution and enhance the overall heat transfer performance of the shell side of the heat exchange.
引用
收藏
页码：17 / 22
页数：5
相关论文
共 7 条
  • [1] Mohr U., Gelbe H., Velocity distribution and vibration excitation in tube bundle heat exchangers, Int J Therm Sci, 39, 4, pp. 414-421, (2000)
  • [2] Zeng W.-L., Hu X.-P., Deng X.-H., Theoretical investigation of fluid distributor in the inlet/outlet region of shell-side of shell-and-tube heat exchanger with longitudinal flow, J of Shaanxi Univ of Sci & Tech: Natural Science Edition, 26, 6, pp. 155-176, (2008)
  • [3] Ambrose T.W., Knudsen J.G., Local shell-side heat transfer in baffled tubular heat exchangers, AIChE J, 3, 3, pp. 332-337, (1958)
  • [4] Matsushima H., Nakayama W., Daikoku T., Shell-side single-phase flows and heat transfer in shell-and-tube exchangers, Heat Transfer-Japanese Research, 15, 2, pp. 60-74, (1986)
  • [5] Li H.-D., Volker K., Visualization and determination of local heat transfer coefficients in shell-and-tube heat exchangers for staggered tube arrangement by mass transfer measurements, Experimental Thermal and Fluid Science, 17, 3, pp. 210-216, (1998)
  • [6] Huang K., Deng X.-H., Chen Q.-H., Local heat transfer and flow resistance in shell-side of shell-tube heat exchanger with helical baffles, Chemical Engineering, 36, 2, pp. 13-16, (2007)
  • [7] Xie G.-N., Peng B.-T., Chen Q.-Y., Et al., Experimental study and prediction of pressure drop and heat transfer in shell-side of tube-and-shell heat exchangers, Proceedings of the CSEE, 26, 21, pp. 104-108, (2006)
1