气体动力黏度求解新方程
The Improved Gas Viscosity Formula
浏览(2034) 下载(3)
- 引用格式:
-
苑伟民.气体动力黏度求解新方程[J].天然气与石油,2013,31(3):0.doi:
.The Improved Gas Viscosity Formula[J].Natural Gas and Oil,2013,31(3):0.doi:
- DOI:
- 作者:
- 苑伟民
- 作者单位:
- 广西天然气管道有限责任公司
- 关键词:
- 低压；高压；天然气；黏度；新方程
Sour gas； Sweet gas； Low pressure； High pressure； Natural gas； Viscosity； Computational formula
- 摘要:
- 为了获得低压和高压下酸性或者非酸性天然气的动力黏度统一公式，使用数据分析软件Origin75，采用LGE关联，对46组实验数据进行了拟合，确定了方程的系数。将API技术数据手册等参考文献中的公式与拟合的新方程进行对比，得出：在计算低压下纯组分及混合组分气体的动力黏度时都比较精确，在计算高压下烃类及混合组分气体的动力黏度时拟合的新方程与API公式比较精确，高压下非烃类气体的动力黏度计算，API公式比较精确。但是，API公式繁多，建议在求解低压和高压下纯烃类及其混合组份的动力黏度时，采用拟合的新方程计算，在求解高压下非烃类气体黏度时，采用API技术数据手册中相应的公式计算。
In order to obtain a computational formula of sweet and sour gas viscosity in low and high pressure conditions， applied are the data analysis software Origin75 and LGE interaction to fit 46 sets of experimental data and determine coefficient of the formula. The formulas in API technical data book and the references are compared with the new formula and comparative results show that the three formulas are accurate in low pressure condition， the formula in API technical data book and the new one used for calculating hydrocarbon and its mixture are accurate in high pressure condition and the API formula for calculating non-hydrocarbon and its mixture is accurate in high pressure condition. It is suggested that the new formula is applied to calculate viscosity of hydrocarbon and its mixture in low and high pressure conditions and the formula in API technical data book is applied to calculate viscosity of non-hydrocarbon and its mixture in high pressure condition.
