頁籤選單縮合
題名 | Crack Dynamics of Thermally Dried Sludge Cake=熱乾燥污泥餅之裂縫動態行為 |
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作者 | 陶濤; 彭曉峰; 李篤中; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 36:5 民94.09 |
頁次 | 頁511-516 |
分類號 | 460.02 |
關鍵詞 | 熱乾燥; 污泥餅; 裂縫動態; Drying; Crack; Micro-CT; Image analysis; Fractal dimension; |
語文 | 英文(English) |
中文摘要 | 本研究以微型電腦斷層掃瞄儀探討熱乾燥污泥餅之裂縫動態行為,並依此重建裂縫之三維結構模型,及追蹤裂縫之結構參數隨時間之變化情形。泥餅裂縫在乾燥初期成長快速,接著發展成具非圓形截面與碎形邊界之扭曲孔道。本文亦討論裂縫對污泥乾燥速率之影響。 |
英文摘要 | We examined in this work the dynamics of crack in drying sludge cake using an X-ray micro-computerized tomography scanner (micro-CT). the three-dimensional crack structure model was reconstructed, and the geometric parameters of cracks were evaluated over time. Internal cracks were found to grow fast in the initial phase of drying, and to then develop into shapes that exhibited zigzagging with non-circular cross-sections and fractal-like boundaries. The role of cracks on sludge drying is discussed. |
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