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Shortcut Method for Initialization of Dividing-Wall Columns and Estimating Pareto-Optimal NQ-Curves
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-08-17 , DOI: 10.1002/ceat.202100256 Lena-Marie Ränger 1 , Thomas Grützner 1
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-08-17 , DOI: 10.1002/ceat.202100256 Lena-Marie Ränger 1 , Thomas Grützner 1
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In early project stages, often no simulation results are available for dividing-wall columns. Hence, shortcut methods are used to estimate suitable vapor and liquid splits. In a previous paper, it was demonstrated that 
diagrams are a suited tool to satisfy this need. However, it has turned out that it shows weaknesses for columns with finite or non-optimal stages. This contribution closes that gap and presents an extended approach to derive suited initial guesses. For this purpose, the original 
diagram is combined with a heuristic approach to calculate Pareto-optimal column designs resulting in a stage-adapted 
diagram. A comparative study illustrates that the new approach is a powerful tool to generate reliable guesses for multiple dividing-wall column simulations with finite stage numbers.
中文翻译：
分壁柱初始化和估计帕累托最优 NQ 曲线的捷径方法
在项目的早期阶段，通常没有可用于分隔壁塔的模拟结果。因此，使用快捷方法来估计合适的蒸气和液体分流。在之前的一篇论文中，已经证明图表是满足这种需求的合适工具。然而，事实证明，它显示出具有有限或非最佳阶段的列的弱点。这一贡献弥补了这一差距，并提供了一种扩展方法来推导出合适的初始猜测。为此，原始图与启发式方法相结合，以计算帕累托最优柱设计，从而生成阶段适应图。一项比较研究表明，新方法是一种强大的工具，可以为具有有限级数的多个分隔壁塔模拟生成可靠的猜测。
更新日期：2021-09-20
diagrams are a suited tool to satisfy this need. However, it has turned out that it shows weaknesses for columns with finite or non-optimal stages. This contribution closes that gap and presents an extended approach to derive suited initial guesses. For this purpose, the original diagram is combined with a heuristic approach to calculate Pareto-optimal column designs resulting in a stage-adapted diagram. A comparative study illustrates that the new approach is a powerful tool to generate reliable guesses for multiple dividing-wall column simulations with finite stage numbers.
中文翻译：
分壁柱初始化和估计帕累托最优 NQ 曲线的捷径方法
在项目的早期阶段，通常没有可用于分隔壁塔的模拟结果。因此，使用快捷方法来估计合适的蒸气和液体分流。在之前的一篇论文中，已经证明
图表是满足这种需求的合适工具。然而，事实证明，它显示出具有有限或非最佳阶段的列的弱点。这一贡献弥补了这一差距，并提供了一种扩展方法来推导出合适的初始猜测。为此，原始图与启发式方法相结合，以计算帕累托最优柱设计，从而生成阶段适应图。一项比较研究表明，新方法是一种强大的工具，可以为具有有限级数的多个分隔壁塔模拟生成可靠的猜测。
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