环状燃气管网非等温稳态流动计算分析  

Calculation of Non-isothermal Steady-state Flow for Annular Gas Network

作　　者：丁国玉[1] 

机构地区：[1]北京市城市规划设计研究院,北京100045

出　　处：《天然气技术与经济》2016年第4期50-52,83,共3页Natural Gas Technology and Economy

摘　　要：针对当前数学模型不适用于燃气环状管网的问题,基于燃气管网非等温稳态数学模型建立了汇流三通非管元件数学模型,对管网非等温稳态数学模型的方程封闭性进行了分析,给出了算例并进行计算。其计算结果通过与Pipeline软件计算结果对比,最大相对误差仅为0.29%,验证了汇流三通数学模型的适用及可操作性。Some current mathematic models are not suitable for annular gas network. So, we developed a non-tube element mathematic model with junction tee based on mathematic model of nonisothermal steady state, and analyzed the equation closure of nonisothermal steady state model, and finally got many examples and calculated. The obtained results are compared with those obtained from the Pipeline software, showing the maximum relative error of0.29 % only. Therefore, the junction tee model is applicable and operable.

关 键 词：环状燃气管网 非等温 稳态模型 能量方程 汇流三通 

分 类 号：TU996.62[建筑科学—供热、供燃气、通风及空调工程]