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姓名 王柏鈞(Bo-Jun Wang) 查詢紙本館藏 畢業系所 能源工程研究所 論文名稱 粗細顆粒混合之流動性質分析
(The analysis of flow property for mixture of coarse and fine granule)相關論文 檔案 [Endnote RIS 格式]
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摘要(中) 近年來先進國家為了能源短缺問題,積極發展可以增加能源使用效率之高溫過濾流動式顆粒床過濾器。近年來為了可以增加顆粒床過濾器的多功能過濾用途,進而有兩階段流動式顆粒床過濾器的想法,但因在過濾器置入兩種不同粒徑的耐高溫、耐酸鹼和不易破碎等性質的濾材,並且也可以置入可以吸附酸性氣體或著可以吸附二氧化碳的顆粒濾材,達到未來的兩階段顆粒床過濾器也可以有碳捕獲、脫酸和攔截微小顆粒體等多功能過濾功能。依照先前的單一種粒徑濾材的床體配置一定會相當不同,進而須先了解雙濾材、單一濾材和粉塵、雙濾材和粉塵在不同重量混合比例其流動性質,包含壁面摩擦角、內部摩擦角、流動函數和流動因子等流動性質,進而作為兩階段流動式顆粒床過濾器床體設置參數依據,以避免濾材流動靜止區的形成,造成系統堵塞之問題,甚至影響其過濾效率。
摘要(英) Silica sands are prospective granular filter media in two-stage granular moving bed filters (GMBF) for hot gas cleanup technology. Two filter media, usually coarse sands and fine sands are used in two-stage GMBFs in order to increase their filter efficiency. GMBF developers fear that fine filter media can bring together flowability problems in granular moving bed. Wall friction and internal friction of GFM affects flow patterns and stagnant zones in moving bed of granular filter considerably. Measurements of kinematic wall friction angles of different mixtures of fine sand, coarse sands and fly ash are presented in this thesis. Uncorroded carbon steel, polydur lining, stainless steel and glass specimens are chosen as wall materials for designing referral. A brief description of the test equipment used to measure wall friction together with a method of evaluation of kinematic angle of wall friction is discussed. Measurements of internal friction and flow function of coarse sand and fine sand for designing referral.
關鍵字(中) ★ 靜止區
★ 流動性質
★ 碳捕獲
★ 顆粒床過濾器
★ 過濾效率關鍵字(英) ★ two-stage granular moving bed filters
★ flow function
★ internal friction
★ wall friction論文目次 中文摘要 i
英文摘要 ii
誌謝 iii
附圖目錄 vi
附表目錄 xi
符號說明 xii
第一章 簡介 1
1.1 研究背景 1
1.2 研究目的 2
第二章 粗細顆粒以不同重量混合比例之流動性質 9
2.1 實驗顆粒介質 9
2.2 實驗設備 12
2.3 相關理論 13
2.4 實驗參數 23
2.4.1 粗石英砂和細石英砂之混合壁面流動性質 23
2.4.2 粗石英砂和煤灰之混合壁面流動性質 23
2.4.3 細石英砂和煤灰之混合壁面流動性質 23
2.4.4 粗細石英砂顆粒間內部流動性質 24
2.5 實驗步驟 26
第三章 結果與討論 41
3.1 粗石英砂和細石英砂之混合壁面流動性質 43
3.2 粗石英砂和煤灰之混合壁面流動性質 63
3.3 細石英砂和煤灰之混合壁面流動性質 71
3.4 粗細石英砂顆粒間內部流動性質 80
第四章 結論 96
4.1 粗細顆粒體混合之壁面流動性質 96
4.2 粗細顆粒體混合之顆粒間內部流動性質 98
參考文獻 100
附錄一:填砂方式 102
(A) 原始Jenike填砂方式 (Jenike) 102
(B) 填砂方式一 (method 1) 104
(C) 填砂方式二 (method 2) 105
(D) 均勻分布器 107
附錄二:流動因子 109
附錄三:分層堆積理論 Theory of two layers 115
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[4] Johanson, J. R., 1967/68, “The placement of insert to correct flow problems,” Powder Technol., 1, pp. 328-333.
[5] 劉題詮,2010,「二維儲槽濾材顆粒流場之研究」,國立中央大學機械工程研究所。
[6] John W. Carson and Harald Wilms, 2006, “Development of an international standard for shear testing,” Powder Technol., 167, pp. 1-9.
[7] Jenike Shear Tester, Model FT-5STEH. Jenike Shear Tester & Consolidating Bench Operating Instructions. Revised, January 1998.
[8] Dietmar Schulze,1964. SV 95 Version 2.0 Software for the evaluation of shear test data.
[9] 杜威達,2003,「二維流動式顆粒床過濾器內部配置設計研究」,國立中央大學機械工程研究所。
[10] 簡大翔,2008,「高溫過濾濾材流動性質量測」,國立中央大學機械工程研究所。
[11] 陳一順,2009,「流動式顆粒床過濾器之濾餅機制行為研究」,國立中央大學機械工程研究所。
[12] Chen, Y. S., Hsiau, S. S., Lai, S. C., Chyou, Y. P., Li, H. Y. and Hsu, C. J., 2009, “Filtration of Dust Particulates with a Moving Granular Bed Filter,” Journal of Hazardous Materials, Vol. 64, No. 1-3, pp. 987-994.
[13] Chen, Y. S. and Hsiau, S. S., 2009, “Influence of Filtration Superficial Velocity on Cake Compression and Cake Formation,” Chemical Engineering and Processing: Process Intensification, Vol. 48, No. 3, pp. 988-996.
[14] Chen, Y. S. and Hsiau, S. S., 2009, “Cake Formation and Growth in Cake Filtration,” Powder Technology, Vol. 192, No. 2, pp. 217-224.
[15] Jenike, A.W.,1961. Gravity Flow of Bulk Solid. Bulletin No.108, Utah Engng. Exp. Station, University of Utah, Salt Lake City, Utah, USA.
[16] Jenike, A.W.,1964. Storage and Flow of Solids. Bulletin No.123, Utah Engng. Exp. Station, University of Utah, Salt Lake City, Utah, USA.
[17] Lear Jr., D.E., A.H. Schmid, and H.F.H. Wigton, 1976, “Granular Filter,” U.S. Patent 4,035,170.
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