Scholarlink

<p>The study investigates the potential use of creosote-treated railroad ties as an alternative fuel in cement kiln installations. Computational fluid dynamics (CFD) was employed to analyse the behaviour of solid particles and fluid flow within the riser duct of a cement rotary kiln. The simulations were based on the Eulerian–Lagrange two-phase flow approach, allowing for the prediction of solid particle trajectories, fluid flow profiles, and particle residence times.</p><p>A numerical CFD simulation with a newly developed calculation method has been implemented as the User Defined Functions (UDF). This innovative approach allowed for a comprehensive analysis of phenomena occurring in the riser duct of a cement kiln and determined the optimal particle size range for shredded railroad ties (SRT).</p><p>The results indicate that particles derived from used railroad ties, within the size range of 1 to 2&#xa0;mm, comply with the requirements of EU Directive 2010/75/EU, which stipulates a residence time of at least 2&#xa0;s at temperatures exceeding 850&#xa0;°C within the riser duct of the cement kiln installation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

End-of-Life Management of Creosote-Treated Railroad Ties for Energy Recovery in Cement Kiln Installation: A CFD Modelling Approach

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年10月6日

查看全文
  • Grzegorz Borsuk,
  • Jacek Wydrych,
  • Małgorzata Wzorek,
  • Ewa Głodek-Bucyk,
  • Lakhbir Singh Brar

摘要

The study investigates the potential use of creosote-treated railroad ties as an alternative fuel in cement kiln installations. Computational fluid dynamics (CFD) was employed to analyse the behaviour of solid particles and fluid flow within the riser duct of a cement rotary kiln. The simulations were based on the Eulerian–Lagrange two-phase flow approach, allowing for the prediction of solid particle trajectories, fluid flow profiles, and particle residence times.

A numerical CFD simulation with a newly developed calculation method has been implemented as the User Defined Functions (UDF). This innovative approach allowed for a comprehensive analysis of phenomena occurring in the riser duct of a cement kiln and determined the optimal particle size range for shredded railroad ties (SRT).

The results indicate that particles derived from used railroad ties, within the size range of 1 to 2 mm, comply with the requirements of EU Directive 2010/75/EU, which stipulates a residence time of at least 2 s at temperatures exceeding 850 °C within the riser duct of the cement kiln installation.