摘要
采用高精度的天然气稳态流动方程作为管道稳态模型,能够确保较高的计算精度。文章利用管道摩阻损失最小原理计算长输管网压力初始值,建立了一种天然气长输管网稳态计算模型,解决了初始值计算不当所导致的牛顿迭代法求解速度慢的问题。通过对陕西省天然气管网的稳态计算表明,该稳态计算模型具有较高的计算精度和速度。
A steady-stage calculation model for long-distance gas transportation pipelines has been established.A high-precision steady-state flow equation is adopted as the steady-stage model of pipelines in order to guarantee an accurate result.The initial value of pipeline pressure is calculated by means of the theory of minimum frictional loss,which can solve the problem of inefficient solution of Newton iteration induced by inappropriate initial value.The steady-state calculation for gas pipelines in Shanxi Province indicates that the model is accurate and efficient.
出处
《天然气技术》
2008年第3期43-45,共3页
NATURAL GAS TECHNOLOGY
基金
西安理工大学青年教师攻读硕士学位科学研究基金项目(210418)
关键词
长输管网
稳态计算
初始位计算
牛顿迭代法
Long-distance gas transportation pipelines Steady-state calculation Initial value calculation Newton iteration
