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Exergy-based thermal management of a steelmaking process linked with a multi-generation power and desalination system

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  • Ishaq, H.
  • Dincer, I.
  • Naterer, G.F.

Abstract

A novel multi-generation integrated energy system is presented in this paper, consisting of a gas-steam combined cycle, four-step thermochemical copper-chlorine (CuCl) cycle, proton exchange membrane fuel cell (PEMFC) and a reverse osmosis (RO) desalination unit. Effective thermal management of waste heat is recognized as a key objective in the steel industry. Hydrogen, electricity, fresh water and heat are the useful outputs of the integrated system. The produced electricity supplies the electricity load required by the electrolyzer, compressor and pumps while the supplementary electricity is an additional system product. Aspen Plus and Engineering Equation Solver (EES) are used for modeling and simulation of the multi-generation system. The overall hydrogen production rate of the designed system is 51.8 kg/hr and the net power production is 1.7 MW. The overall energy efficiency of the multi-generation system is 63.3% and the exergy efficiency is 58.8%. Further sensitivity studies and outcomes are presented and discussed in this paper.

Suggested Citation

  • Ishaq, H. & Dincer, I. & Naterer, G.F., 2018. "Exergy-based thermal management of a steelmaking process linked with a multi-generation power and desalination system," Energy, Elsevier, vol. 159(C), pages 1206-1217.
    • Handle: RePEc:eee:energy:v:159:y:2018:i:c:p:1206-1217
    DOI: 10.1016/j.energy.2018.06.213
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    References listed on IDEAS

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    1. Szargut, Jan & Szczygiel, Ireneusz, 2009. "Utilization of the cryogenic exergy of liquid natural gas (LNG) for the production of electricity," Energy, Elsevier, vol. 34(7), pages 827-837.
    2. Szargut, Jan & Szczygiel, Ireneusz, 2005. "Comparison of the efficiency of the variants of a primary gas turbine supplementing a coal-fired power plant," Energy, Elsevier, vol. 30(7), pages 1204-1217.
    3. Szargut, Jan T., 2004. "Optimization of the design parameters aiming at the minimization of the depletion of non-renewable resources," Energy, Elsevier, vol. 29(12), pages 2161-2169.
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    Cited by:

    1. 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).
    2. Ishaq, H. & Dincer, I. & Naterer, G.F., 2019. "Exergy and cost analyses of waste heat recovery from furnace cement slag for clean hydrogen production," Energy, Elsevier, vol. 172(C), pages 1243-1253.
    3. Temiz, Mert & Dincer, Ibrahim, 2021. "Concentrated solar driven thermochemical hydrogen production plant with thermal energy storage and geothermal systems," Energy, Elsevier, vol. 219(C).

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