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題 名 | Application of Group Contribution to Correlation of Viscosity of Organic Liquids=應用基團貢獻於有機液體黏度的關聯 |
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作 者 | 杜建勳; 許先志; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 30:4 1999.07[民88.07] |
頁 次 | 頁311-318 |
分類號 | 346 |
關鍵詞 | 基團貢獻; 有機液體; 黏度; Viscosity; Correlation; Group contribution; Organic liquids; |
語 文 | 英文(English) |
中文摘要 | 本文利用基團貢獻的原理,建立一個可以計算溫度在Tr<0.75範圍的有機液體黏度 的關聯方法。並以479種有機液體的4608個實驗數據產生91種官能基的基團貢獻參數。各 個基團貢獻參數以五個常數構成,可以用來計算高達112mPa˙s的有機液體黏度。本方法僅需 要化合物的臨界壓力,使用上相當簡便。當本方法用來計算4608個有機液體的黏度時,與實驗 數據的標準偏差為0.16mPa˙s,而平均絕對百分偏差是3.86%。同時比文獻中的van Velzen 等人(1972)、Orrick與Erbar(1973)、Przezdziecki與Sridhar(1985)的計算方法準確。 |
英文摘要 | A correlation method, based on the principle of group contribution, has been developed for calculating the viscosity of organic liquids at temperature Tr<0.75. Group-contribution parameters of 91 functional groups were obtained by correlating 4,608 experimental data for 479 organic liquids. The various groups are presented as a five-constant equation and can be used to estimate the viscosity of organic liquids up to 112 mPa˙s. The proposed method is relatively easy to use and only requires the critical pressure of each compound. When compared with 4,608 experimental data, this method produces a standard deviation of 0.16 mPa•s and an average absolute percentage deviation of 3 .86%. In terms of accuracy, it compares favorably with the methods of van Velzen et al. (1972), Orrick and Erbar (1973), and Przezdziecki and Sridhar (1985). |
本系統中英文摘要資訊取自各篇刊載內容。