SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (3): 613-619.doi: 10.1016/j.cjche.2018.06.032

• Chemical Engineering Thermodynamics • 上一篇    下一篇

Heat transfer model of two-phase flow across tube bundle in submerged combustion vaporizer

Jiajun Song, Dongyan Han, Qinqin Xu, Dan Zhou, Jianzhong Yin   

  1. State Key Laboratory of Fine Chemicals, School of Chemical Machinery and Safety, Dalian University of Technology, Dalian 116024, China
  • 收稿日期:2018-02-07 修回日期:2018-06-25 出版日期:2019-03-28 发布日期:2019-04-25
  • 通讯作者: Jianzhong Yin,E-mail address:jzyin@dlut.edu.cn E-mail:jzyin@dlut.edu.cn

Heat transfer model of two-phase flow across tube bundle in submerged combustion vaporizer

Jiajun Song, Dongyan Han, Qinqin Xu, Dan Zhou, Jianzhong Yin   

  1. State Key Laboratory of Fine Chemicals, School of Chemical Machinery and Safety, Dalian University of Technology, Dalian 116024, China
  • Received:2018-02-07 Revised:2018-06-25 Online:2019-03-28 Published:2019-04-25
  • Contact: Jianzhong Yin,E-mail address:jzyin@dlut.edu.cn E-mail:jzyin@dlut.edu.cn

摘要: In order to optimize the design of the submerged combustion vaporizer (SCV), an experimental apparatus was set up to investigate the heat transfer character outside the tube bundle in SCV. Several experiments were conducted using water and CO2 as the heat transfer media in the tubes, respectively. The results indicated that hot air flux, the initial liquid level height and the tube pitch ratio had great influence on the heat transfer coefficient outside the tube bundle (ho). Finally, the air flux associated factor β and height associated factor γ were introduced to propose a new ho correlation. After verified by experiments using cold water, high pressure CO2 and liquid N2 as heat transfer media, respectively, it was found that the biggest deviation between the predicted and the experimental values was less than 25%.

关键词: Submerged combustion vaporizer, Fluid sweeping tube bundle, Two-phase flow, Heat transfer coefficient, Modeling

Abstract: In order to optimize the design of the submerged combustion vaporizer (SCV), an experimental apparatus was set up to investigate the heat transfer character outside the tube bundle in SCV. Several experiments were conducted using water and CO2 as the heat transfer media in the tubes, respectively. The results indicated that hot air flux, the initial liquid level height and the tube pitch ratio had great influence on the heat transfer coefficient outside the tube bundle (ho). Finally, the air flux associated factor β and height associated factor γ were introduced to propose a new ho correlation. After verified by experiments using cold water, high pressure CO2 and liquid N2 as heat transfer media, respectively, it was found that the biggest deviation between the predicted and the experimental values was less than 25%.

Key words: Submerged combustion vaporizer, Fluid sweeping tube bundle, Two-phase flow, Heat transfer coefficient, Modeling