Analysis of shell side heat transfer mechanism under coupling spiral action
[1]Wang Yongqing,Wang Fangfang,Old and new,et al.Analysis of shell side heat transfer mechanism under coupling spiral action[J].Journal of Zhengzhou University (Engineering Science),2019,40(04):16-.[doi:10.13705/j.issn.1671-6833.2019.03.011]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
40
Number of periods:
2019 04
Page number:
16-
Column:
Public date:
2019-07-10
- Title:
- Analysis of shell side heat transfer mechanism under coupling spiral action
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2019.03.011
- Abstract:
- A new type of coupling spiral baffles heat exchangers is presented coupling the ideal spiral baffle with external thread tube in the shellside. With the CFD code FLUENT, Analysing the shell side heat transfer mechanism under coupling screw action, and compared with that of ideal helical baffle heat exchanger. The mechanism of heat transfer enhancement in shellside was analyzed. It is shown that the comprehensive performance of shellside in coupling spiral baffle heat exchanger increases by 4.5%~14.5% than that of ideal helical baffle heat exchanger, when the helical angle are 10°, 15° and 20° ，and shell side Reynolds number ranges 2000 to 6000. When the helical angle is 10° and Reynolds number is 4000, the heat transfer coefficient, comprehensive performance, temperature field and pressure field in shellside of coupling spiral heat exchanger are all better than that of the ideal spiral baffle heat exchanger. The study and results provide references for the improvement of heat transfer of helical baffles heat exchanger
- References:
- -
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Last Update:
2019-07-29