SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (1): 218-225.DOI: 10.1016/j.cjche.2018.03.025

• Energy, Resources and Environmental Technology • 上一篇    下一篇

Devise of a W serpentine shape tube heat exchanger in a hard chromium electroplating process

Surasit Tanthadiloke1, Paisan Kittisupakorn1, Pannee Boriboonsri1, Iqbal M. Mujtaba2   

  1. 1 Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;
    2 School of Engineering, University of Bradford, West Yorkshire BD7 1DP, UK
  • 收稿日期:2017-10-15 修回日期:2018-02-13 出版日期:2019-01-28 发布日期:2019-01-31
  • 通讯作者: Paisan Kittisupakorn
  • 基金资助:

    Supported by Thailand Research Fund (TRF) under The Royal Golden Jubilee Ph.D. Program (PHD/0158/2550), Chulalongkorn University (Contract No. RES_57_411_21_076) and Chulalongkorn Academic Advancement into its 2nd Century Project.

Devise of a W serpentine shape tube heat exchanger in a hard chromium electroplating process

Surasit Tanthadiloke1, Paisan Kittisupakorn1, Pannee Boriboonsri1, Iqbal M. Mujtaba2   

  1. 1 Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;
    2 School of Engineering, University of Bradford, West Yorkshire BD7 1DP, UK
  • Received:2017-10-15 Revised:2018-02-13 Online:2019-01-28 Published:2019-01-31
  • Contact: Paisan Kittisupakorn
  • Supported by:

    Supported by Thailand Research Fund (TRF) under The Royal Golden Jubilee Ph.D. Program (PHD/0158/2550), Chulalongkorn University (Contract No. RES_57_411_21_076) and Chulalongkorn Academic Advancement into its 2nd Century Project.

摘要: In a hard chromium electroplating process, a heat exchanger is employed to remove the heat produced from the high current intensity in an electroplating bath. Normally, a conventional U shape heat exchanger is installed in the bath, but it provides low heat removal. Thus, this study designs a novel W serpentine shape heat exchanger with identical heat transfer area to the conventional one for increasing heat removal performance. The performance of the heat exchange is tested with various flow velocities in a cross-section in range of 1.6 to 2.4 m·s-1. Mathematical models of this process have been formulated in order to simulate and evaluate the heat exchanger performance. The results show that the developed models give a good prediction of the plating solution and cooling water temperature, and the novel heat exchanger provides better results at any flow velocity. In addition, the W serpentine shape heat exchanger has been implemented in a real hard chromium electroplating plant. Actual data collected have shown that the new design gives higher heat removal performance compared with the U shape heat exchanger with identical heat transfer area; it removes more heat out of the process than the conventional one of about 23%.

关键词: W serpentine shape, Hard chromium electroplating, Mathematical modeling, Simulation, Heat exchanger

Abstract: In a hard chromium electroplating process, a heat exchanger is employed to remove the heat produced from the high current intensity in an electroplating bath. Normally, a conventional U shape heat exchanger is installed in the bath, but it provides low heat removal. Thus, this study designs a novel W serpentine shape heat exchanger with identical heat transfer area to the conventional one for increasing heat removal performance. The performance of the heat exchange is tested with various flow velocities in a cross-section in range of 1.6 to 2.4 m·s-1. Mathematical models of this process have been formulated in order to simulate and evaluate the heat exchanger performance. The results show that the developed models give a good prediction of the plating solution and cooling water temperature, and the novel heat exchanger provides better results at any flow velocity. In addition, the W serpentine shape heat exchanger has been implemented in a real hard chromium electroplating plant. Actual data collected have shown that the new design gives higher heat removal performance compared with the U shape heat exchanger with identical heat transfer area; it removes more heat out of the process than the conventional one of about 23%.

Key words: W serpentine shape, Hard chromium electroplating, Mathematical modeling, Simulation, Heat exchanger