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Energy and exergy analysis for waste heat cascade utilization in sinter cooling bed

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  • Liu, Yan
  • Yang, Jian
  • Wang, Jin
  • Cheng, Zhi-long
  • Wang, Qiu-wang

Abstract

In the present paper, a numerical study is presented to investigate the cascade utilization of waste heat in sinter cooling bed. With the aid of CFD (computational fluid dynamics), a two-dimensional unsteady mathematical model, which would significantly reduce the computational time, is established to describe three-dimensional steady flow and heat transfer in sinter cooling bed. The Brinkman–Forchheimer extended Darcy model and the LTNE (local thermal non-equilibrium) model are employed to describe flow and heat transfer in sinter cooling bed. And the reliability of this mathematical model is validated with both related simulation and experimental work. And then, numerical simulations are conducted to examine the effects of different operating parameters on the cooling air temperature and waste heat utilization quantity. Furthermore, the waste heat grade and quantity are taken into comprehensive consideration in energy and exergy analysis. The results indicate that, both the quantity and quality of waste heat utilization would be improved by increasing sinter cooling bed height, trolly's moving speed and sinter heat flux. Meanwhile, it is also found that, with different assignments of cooling air flow rate, the quantity and quality of waste heat in sinter cooling bed would not be improved at the same time.

Suggested Citation

  • Liu, Yan & Yang, Jian & Wang, Jin & Cheng, Zhi-long & Wang, Qiu-wang, 2014. "Energy and exergy analysis for waste heat cascade utilization in sinter cooling bed," Energy, Elsevier, vol. 67(C), pages 370-380.
    • Handle: RePEc:eee:energy:v:67:y:2014:i:c:p:370-380
    DOI: 10.1016/j.energy.2013.11.086
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    4. Fan, Xiaoyu & Ji, Wei & Li, Junxian & Gao, Zhaozhao & Chen, Liubiao & Wang, Junjie, 2024. "Advancing liquid air energy storage with moving packed bed: Development and analysis from components to system level," Applied Energy, Elsevier, vol. 355(C).
    5. Chenyi Xu & Zhichun Liu & Shicheng Wang & Wei Liu, 2019. "Numerical Simulation and Optimization of Waste Heat Recovery in a Sinter Vertical Tank," Energies, MDPI, vol. 12(3), pages 1-19, January.
    6. Cheng, Zhilong & Tan, Zhoutuo & Guo, Zhigang & Yang, Jian & Wang, Qiuwang, 2020. "Recent progress in sustainable and energy-efficient technologies for sinter production in the iron and steel industry," Renewable and Sustainable Energy Reviews, Elsevier, vol. 131(C).
    7. Wu, Junnian & Wang, Ruiqi & Pu, Guangying & Qi, Hang, 2016. "Integrated assessment of exergy, energy and carbon dioxide emissions in an iron and steel industrial network," Applied Energy, Elsevier, vol. 183(C), pages 430-444.
    8. Na, Hongming & Sun, Jingchao & Qiu, Ziyang & He, Jianfei & Yuan, Yuxing & Yan, Tianyi & Du, Tao, 2021. "A novel evaluation method for energy efficiency of process industry — A case study of typical iron and steel manufacturing process," Energy, Elsevier, vol. 233(C).
    9. Konstantin Biel & Christoph H. Glock, 2017. "Prerequisites of efficient decentralized waste heat recovery and energy storage in production planning," Journal of Business Economics, Springer, vol. 87(1), pages 41-72, January.
    10. Zheng, Ying & Cai, Jiu-ju & Dong, Hui & Feng, Jun-sheng & Liu, Jing-yu, 2019. "Experimental investigation of volumetric exergy transfer coefficient in vertical moving bed for sinter waste heat recovery," Energy, Elsevier, vol. 167(C), pages 428-439.
    11. Junpeng Fu & Jiuju Cai, 2020. "Study of Heat Transfer and the Hydrodynamic Performance of Gas–Solid Heat Transfer in a Vertical Sinter Cooling Bed Using the CFD-Taguchi-Grey Relational Analysis Method," Energies, MDPI, vol. 13(9), pages 1-30, May.
    12. Sun, Jingchao & Na, Hongming & Yan, Tianyi & Qiu, Ziyang & Yuan, Yuxing & He, Jianfei & Li, Yingnan & Wang, Yisong & Du, Tao, 2021. "A comprehensive assessment on material, exergy and emission networks for the integrated iron and steel industry," Energy, Elsevier, vol. 235(C).
    13. Liu, Yan & Yang, Jian & Wang, Jing-yu & Ding, Xu-gang & Cheng, Zhi-long & Wang, Qiu-wang, 2015. "Prediction, parametric analysis and bi-objective optimization of waste heat utilization in sinter cooling bed using evolutionary algorithm," Energy, Elsevier, vol. 90(P1), pages 24-35.
    14. Pahlevaninezhad, Masoud & Davazdah Emami, Mohsen & Panjepour, Masoud, 2014. "The effects of kinetic parameters on combustion characteristics in a sintering bed," Energy, Elsevier, vol. 73(C), pages 160-176.
    15. Ebrahimzadeh, Edris & Wilding, Paul & Frankman, David & Fazlollahi, Farhad & Baxter, Larry L., 2016. "Theoretical and experimental analysis of dynamic heat exchanger: Retrofit configuration," Energy, Elsevier, vol. 96(C), pages 545-560.
    16. Jiang, Binfan & Xia, Dehong & Zhang, Huili & Pei, Hao & Liu, Xiangjun, 2020. "Effective waste heat recovery from industrial high-temperature granules: A Moving Bed Indirect Heat Exchanger with embedded agitation," Energy, Elsevier, vol. 208(C).
    17. Cui, Zheng & Shao, Wei & Chen, Zhaoyou & Cheng, Lin, 2017. "Mathematical model and numerical solutions for the coupled gas–solid heat transfer process in moving packed beds," Applied Energy, Elsevier, vol. 206(C), pages 1297-1308.

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