本研究使用的多孔氧化鋁在吸附脫附濃縮槽與燃燒室中扮演十分重要的角色，前者作為擔任吸附與脫附揮發性有機分子 (Volatile Organic Compounds, VOCs)的媒介，於後者為去除VOCs的關鍵。同時將建立相應的數值模型去進行氣體特性分析，透過氣體分析的結果，希望優化吸附與脫附的效果。
本研究於吸附脫附濃縮槽與燃燒室中皆會放置多孔氧化鋁，在建立的數值模型中，當流體經過多孔氧化鋁時，需要進一步進行修正計算的方程式，例如：基於達西定律來修正傳輸過程中的動量及能量守恆方程式，以此來求得數值解結果。
根據吸附脫附濃縮槽數值模型結果顯示，從中發現添加石棉比較符合使用效益，並根據不同邊界條件的特性分析結果可以給出較佳的優化方法。於燃燒室數值模型中可得出上下為不同疏密程度的多孔氧化鋁時可以有較高的蓄熱效果，並根據蓄熱效果與特性分析結果可得不同的雙層孔洞設計與燃燒效率。
本研究除了可以了解氣體在吸附脫附濃縮槽與燃燒室中所發生之物理現象，並藉由氣體特性分析結果，提出優化模型的方法，期望達到最符合工業利益的設計，未來亦可透過此模型之概念用於其他工業技術上之改良。

關鍵字： 多孔氧化鋁、揮發性有機分子、吸附脫附濃縮槽、燃燒室

The porous alumina used in this study plays a very important role in both the adsorption and desorption concentration tank and the combustion chamber. The porous alumina is used as a medium for adsorption, desorption, and removal of volatile organic compounds (VOCs). Meanwhile, corresponding numerical models will be established to analyze gas characteristics. In the numerical models, the equations for simulations need to be modified when the fluid goes through the porous alumina. For example: Navier-Stokes equation should be modified by Darcy's law, then can obtain the more accurate numerical solution results.
In addition to understanding the physical phenomena of the fluid in both models, this study provides few methods for optimizing the model,which based on the analysis results of the gas characteristics, hoping to achieve a design that is most in line with the interests of the industry. In the future, it will also be possible to improve other industrial technologies through this study.

Keywords: porous alumina, volatile organic compounds, adsorption and desorption concentration tank, combustion chamber

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