IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v66y2014icp991-998.html
   My bibliography  Save this article

Generalized constructal optimization for solidification heat transfer process of slab continuous casting based on heat loss rate

Author

Listed:
  • Feng, Huijun
  • Chen, Lingen
  • Xie, Zhihui
  • Ding, Zemin
  • Sun, Fengrui

Abstract

Based on constructal theory, generalized constructal optimization of a solidification heat transfer process of slab continuous casting is carried out by taking a complex function as optimization objective. The complex function is composed of the functions of the heat loss rate and surface temperature gradient of the slab subjected to the constraints of shell thickness, surface temperature and liquid core length of the slab. For the specified total water flow rate, the “optimal construct” of the water distribution in the secondary cooling zone is obtained. Comparing the optimal results with the initial ones, it is shown that the complex function, the functions of the heat loss rate and the surface temperature gradient after optimization are decreased by 35.04%, 2.14% and 59.48%, respectively. Therefore, the scheme of the “optimal construct” of the water distribution reduces the heat loss rate and surface temperature gradient of the slab simultaneously, that is, improves its energy retention and quality simultaneously. The optimization results obtained in this paper can provide some guidelines for parameter designs and dynamic operations of the solidification heat transfer process of slab continuous casting.

Suggested Citation

  • Feng, Huijun & Chen, Lingen & Xie, Zhihui & Ding, Zemin & Sun, Fengrui, 2014. "Generalized constructal optimization for solidification heat transfer process of slab continuous casting based on heat loss rate," Energy, Elsevier, vol. 66(C), pages 991-998.
    • Handle: RePEc:eee:energy:v:66:y:2014:i:c:p:991-998
    DOI: 10.1016/j.energy.2013.12.067
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544213011377
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2013.12.067?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Hu, Xianzhong & Yu, Qingbo, 2018. "Effect of the elevated initial temperature on the laminar flame speeds of oxy-methane mixtures," Energy, Elsevier, vol. 147(C), pages 876-883.
    2. Feng, Huijun & Xie, Zhuojun & Chen, Lingen & Wu, Zhixiang & Xia, Shaojun, 2020. "Constructal design for supercharged boiler superheater," Energy, Elsevier, vol. 191(C).
    3. Liu, Changxin & Xie, Zhihui & Sun, Fengrui & Chen, Lingen, 2017. "Exergy analysis and optimization of coking process," Energy, Elsevier, vol. 139(C), pages 694-705.
    4. Sun, Yongqi & Seetharaman, Seshadri & Liu, Qianyi & Zhang, Zuotai & Liu, Lili & Wang, Xidong, 2016. "Integrated biomass gasification using the waste heat from hot slags: Control of syngas and polluting gas releases," Energy, Elsevier, vol. 114(C), pages 165-176.
    5. Feng, Huijun & Chen, Lingen & Xie, Zhihui & Sun, Fengrui, 2015. "“Disc-point” heat and mass transfer constructal optimization for solid–gas reactors based on entropy generation minimization," Energy, Elsevier, vol. 83(C), pages 431-437.
    6. Liu, Xiong & Chen, Lingen & Feng, Huijun & Qin, Xiaoyong & Sun, Fengrui, 2016. "Constructal design of a blast furnace iron-making process based on multi-objective optimization," Energy, Elsevier, vol. 109(C), pages 137-151.
    7. Pantula, Priyanka D. & Mitra, Kishalay, 2019. "A data-driven approach towards finding closer estimates of optimal solutions under uncertainty for an energy efficient steel casting process," Energy, Elsevier, vol. 189(C).
    8. Salimpour, Mohammad Reza & Menbari, Amir, 2015. "Analytical optimization of constructal channels used for cooling a ring shaped body based on minimum flow and thermal resistances," Energy, Elsevier, vol. 81(C), pages 645-651.
    9. Liu, Xiong & Feng, Huijun & Chen, Lingen & Qin, Xiaoyong & Sun, Fengrui, 2016. "Hot metal yield optimization of a blast furnace based on constructal theory," Energy, Elsevier, vol. 104(C), pages 33-41.
    10. Gong, Changming & Si, Xiankai & Wang, Kang & Wei, Fuxing & Liu, Fenghua, 2018. "Numerical analysis of carbon monoxide, formaldehyde and unburned methanol emissions with ozone addition from a direct-injection spark-ignition methanol engine," Energy, Elsevier, vol. 144(C), pages 432-442.
    11. Tang, Wei & Feng, Huijun & Chen, Lingen & Xie, Zhuojun & Shi, Junchao, 2021. "Constructal design for a boiler economizer," Energy, Elsevier, vol. 223(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:66:y:2014:i:c:p:991-998. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.