Optimization and Analysis of Minimizing Exergy Loss in Ironmaking System,Energy Technology

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Optimization and Analysis of Minimizing Exergy Loss in Ironmaking System
Energy Technology ( IF 3.6 ) Pub Date : 2020-12-19 , DOI: 10.1002/ente.202000838
Jianfei He _{1,

2} , Weilong Zhang ₃ , Hongming Na _{1,

2} , Jingchao Sun _{1,

2} , Yuxing Yuan _{1,

2} , Ziyang Qiu _{1,

2} , Tianyi Yan _{1,

2} , Tao Du _{1,

2}

Affiliation

Application of energy saving and consumption reduction technologies in the iron and steel industry (ISI) is an effective way to achieve sustainable development. As the highly energy‐consuming ironmaking system is an important part of steel production, reducing its exergy loss is of great significance for overall energy saving in ISI. The optimization model of the ironmaking system is established in this study based on the law of conservation of mass and the second law of thermodynamics. For the target of minimum exergy loss, material and energy systems of ironmaking are optimized and analyzed. Factors that influence the ironmaking system are further discussed. The results show that the minimum exergy loss of the ironmaking system is 4605.80 MJ t‐HM⁻¹ by improving operation conditions. Among them, 51.15% of the total exergy loss is contributed by the blast furnace ironmaking process.

中文翻译：

降低炼铁系统火用损失的优化分析

节能减排技术在钢铁行业的应用是实现可持续发展的有效途径。由于高耗能的炼铁系统是钢铁生产的重要组成部分，因此降低其火用损失对于ISI的整体节能具有重要意义。本研究基于质量守恒定律和热力学第二定律建立了炼铁系统的优化模型。为了降低火用损失的目标，对炼铁的材料和能源系统进行了优化和分析。进一步讨论了影响炼铁系统的因素。结果表明，炼铁系统的最小火用损失为4605.80 MJ t-HM ^-1通过改善操作条件。其中，高炉总炼铁过程贡献了51.15％的总火用损失。

更新日期：2021-02-05

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