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題 名 | Estimation of the Liquid Viscosity of Hydrocarbons from Their Normal Boiling Points=由正常沸點估算液體烴化合物的黏度 |
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作 者 | 郭偉明; | 書刊名 | 明志工專學報 |
卷 期 | 29 1997.05[民86.05] |
頁 次 | 頁139-146 |
分類號 | 461.625 |
關鍵詞 | 黏度; 液體烴化合物; 正常沸點; 共聯參數; 有效碳數; Viscosity; Liquid hydrocarbons; Normal boiling point; Correlation parameters; Effective carbon number; |
語 文 | 英文(English) |
中文摘要 | 本文提出一種通用方法僅使用正常沸點(Tb)以預測液體烴化合物的黏度(η)。首 先利用文獻上已有之實驗數據來求算本文提出模式 ln (η /mPa . s)=A+B (Tb ╱ T) 中 的二個共聯參數 A 及 B, 然後此二參數再經一種正常烷烴碳數的多項式展開而予以一般化 。本文所推導模式可于寬廣溫度範圍內準確量得黏度與溫度的關係。透過此種有效碳數觀念 ,本文模式可順利延伸並能以可接受的準確度估算包括異烷烴,正烯烴及芳香烴的黏度。本 文方法使用方便且只須正常沸點作為輸入數據。 |
英文摘要 | Herein a generalized approach is presented for predicting the viscosity (η ) of liquid hydrocarbons using only their normal boiling temperatures (Tb) as a single characterizing parameter. Published experimental data were used to determine the proposed model, ln (η /mPa . s)=A+B (Tb/T), in which the two correlation parameters, A and B, were generalized by a polynomial expansion of the carbon number present in normal alkanes. The model so derived accurately gives the viscosity of a liquid hydrocarbon as a function of temperatures over a wide range of temperatures. By applying the concept of the effective carbon number, the model has been successfully extended to estimate the viscosity of other hydrocarbons including isomeric alkanes, alkenes and aromatics with acceptable reliability. The proposed approach is simple to use, requiring only the normal boiling points as input data. |
本系統中英文摘要資訊取自各篇刊載內容。