| Z函数图解积分法计算气体逸度 |
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| 引用本文： | 鲁永奎.Z函数图解积分法计算气体逸度[J].北京科技大学学报,1986(4). |
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| 作者姓名： | 鲁永奎 |
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| 作者单位： | 北京钢铁学院物理化学教研室 |
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| 摘 要： | 本文讨论了传统计算气体逸度的准确方法——α函数图解积分法,在实际计算中的麻烦和误差。并指出了当压力趋近于零而α函数不为零的原因。 本文提出的Z函数图解积分法,利用原试验数据仅改变图解积分的函数形式,就克服了α函数法的缺点,并指出了α函数法计算误差的性质,又为Z函数近似计算法的应用条件和适用范围做了说明,从而得到一个在理论解释和计算误差上,都优于α函数的方法。具有实际意义的是,Z函数法可估计出气体服从理想气体方程式的压力范围。
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| 关 键 词： | 逸度 Z函数法 α函数法 图解积分 |
A Calculation Method on Gas Fugacity by Z Function of Graphcial Integation |
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| Lu Yougkui.A Calculation Method on Gas Fugacity by Z Function of Graphcial Integation[J].Journal of University of Science and Technology Beijing,1986(4). |
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| Authors: | Lu Yougkui |
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| Abstract: | A calculation method of gas fugacity,traditional a function method,has been discussed on its complexity and error.The error of a function method consists in the inequality between its value and that value when the pressure is close to zero. The substitution of Z function for a function, it shows that the deficiency of a function can be overcomed. The conditions and range of applications of Z function are also explained.One of the advantages is to estimate the field of pressure that obeies the perfect gas law so that it is used widely in practice. |
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| Keywords: | gas fugacity Z function a function graphcial integation |
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