配气管网系统效率评价方法研究

利用系统分析方法，建立了评价配气管网系统效率的数学模型，并延伸出评价区域配气管网效率的数学模型。从能量的角度出发，建立了配气管线效率模型，综合考虑了气体热能、位能对配气管线效率的影响，并用摩阻效率和附加效率来表征配气管线的能耗情况。针对难于获取测试数据，以最小方差为目标函数，根据气举站和配气站数据的配气管线节点压力温度的计算方法，为测试评价配气管线效率提供了依据。

Research on the Efficiency Evaluating Method for Gas-distribution System

Using system analytical method, a mathematical model for evaluating the efficiency of gas-distribution piping system was established, and the illation was made about efficiency of it in the realm of evaluation. From the point of energy, the model of efficiency for gas-distribution piping system was set up, the influences of heat and potential energy of gas for efficiency were comprehensively considered, and the energy consumption of gas-distribution piping was characterized using friction efficiency and additional efficiency. Aiming at resolving the problem of obtaining test data difficultly, proofs for evaluating efficiency of gasdistribution piping system had been offered by using minimal square difference as object function and basing on the calculation method about pressure and temperature obtaining from gas lift and gas distributing stations.