Simulation Of Normal-Freezing Processes

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/106129

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題名:	Simulation Of Normal-Freezing Processes
其他題名:	常態凝固程序模擬
作者:	Yeh, Ho-Ming;Ho, Chii-Dong
貢獻者:	淡江大學化學工程與材料工程學系
關鍵詞:	analog simulator;simulation;normal freezing
日期:	2001-04-17
上傳時間:	2016-04-22 13:21:06 (UTC+8)
出版者:	ELSEVIER
摘要:	本文推介常態凝固類比計算機之設計及操作方法。其原理乃利用一排垂直錠管中之液位高度，來模擬固化錠棒中之溶質濃度，而每一錠管代表固化錠棒上之位置。模擬之結果與分析解甚吻合，因此本模擬方法可推展至處理分析解無法獲得之較複雜困難之問題，例如分佈係數隨濃度而變及錠棒截面積不均勻等問題。 The design and operation of the analog computers for normal freezing have been introduced to simulate the solute concentration in the freezing solid by the heights of liquid level in an array of vertical ingot tubes. Each tube represents a discrete length of the freezing ingot. The simulation was confirmed pretty well with the analytical solution. The main contribution of present paper is to introduce the method of adjusting (decreasing) the cross-section area of the liquid-zone tube during operation for simulating the decreasing in unfrozen zone. This simulation can further be applied to the problems in which the distribution coefficient varies with the solute concentration, or to the zone-refining problems with variable zone length, if the cross-section area of the liquid-zone tube is adjusted (decreased) appropriately during the simulation operation, while the analytical solutions to the problems of variable distribution coefficient and variable zone length are difficult to achieve.
關聯:	Journal of the Chinese Institute of Chemical Engineers 32(2), pp.187-192
顯示於類別:	[化學工程與材料工程學系暨研究所] 期刊論文

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