考虑能量方程影响的燃气管道流动特性分析  

Characteristic analysis on gas flow in pipeline network based on energy equation

作　　者：高兰周[1] 侯根富[1] 李悦敏[2] 

机构地区：[1]福建工程学院环境与设备工程系,福建福州350108 [2]安徽建筑工业学院,安徽合肥230601

出　　处：《福建工程学院学报》2010年第3期231-235,共5页Journal of Fujian University of Technology

基　　金：福建省教育厅B类科研项目(JB09306);福建工程学院科研发展基金资助项目(GY-Z0890)

摘　　要：采用特征线法对高压燃气长输管道非稳态流动的数学模型进行了数值求解,考虑能量方程和城市用气规律,对燃气管网非稳态流动问题从理论上进行了分析,解决了由于忽略能量方程所带来的计算精度低的问题,编制出了用户负荷随时间变化时,压力、温度、流量沿管线分布的动态模拟程序,并给出了计算实例。The numerical solution of a mathematical model to unsteady-state flow of high pressure gas pipeline was conducted by employing the characteristic line method.A theoretical analysis of unsteady-state flow of gas pipeline network was made with consideration of energy equation and urban gas consumption rule.The approach overcame the problem of low calculation precision resulting from neglect of the energy equation.A dynamic simulation program of pressure,temperature and flow rate distributed along pipeline during variation of gas consumption load with time was generated.Some calculation examples were given.

关 键 词：非稳态 燃气管网 能量方程 特征线 

分 类 号：TU996.3[建筑科学—供热、供燃气、通风及空调工程]