| 蒸气压和温度关系的参数拟合 |
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| 引用本文： | 方芳,吴志勇.蒸气压和温度关系的参数拟合[J].河北大学学报(自然科学版),2003,23(4):402-406. |
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| 作者姓名： | 方芳 吴志勇 |
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| 作者单位： | 河北大学,化学与环境科学学院,河北,保定,071002 |
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| 摘 要： | 以乙醇为例利用非线性拟合技术和文献报道的实验数据,探讨了纯物质蒸气压和温度关系及其参数的拟合问题.从拟合的残差平方和和误差的统计分布规律考虑,基于蒸发焓与温度关系(Clapeyron-Clausius方程)的多参数模型明显优于常用的二参数模型和Antoine方程.
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| 关 键 词： | 非线性拟和 Newton-Raphson法 Clapeyron-Clausius方程 Antoine方程 |
| 文章编号： | 1000-1565(2003)04-0402-05 |
| 修稿时间： | 2002年12月18 |
Parameter Regression in the Mathematical Relation of Vapor Pressure and Temperature |
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| FANG Fang,WU Zhi_yong.Parameter Regression in the Mathematical Relation of Vapor Pressure and Temperature[J].Journal of Hebei University (Natural Science Edition),2003,23(4):402-406. |
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| Authors: | FANG Fang WU Zhi_yong |
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| Abstract: | The relation of vapor pressure and temperature of pure substance and its parameter estimation was discussed by taking advantage of non-linear regression method and reported experimental data. It was found that the multi-parameter model describing the relation of vapor enthalpy and temperature (Clapeyron-Clausius equation) is obviously superior to the commonly used two parameters model and the Antoine equation in term of residual square sum and statistic distribution rule of error. |
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| Keywords: | non-linear regression Newton-Raphson Clapeyron-Clausius equation Antoine equation |
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