长距离输气管道设计优化经济模型

在比较全面的考虑影响输气管道总费用的各项因素（管径、壁厚、压比、输气压力及投资的时间价值等）的基础上，将所有费用折算为设备寿命末年时的折算费用，并以此折算费用为目标函数，提出了一个比较全面、合理的输气管道优化设计经济模型。该模型能保证管道终端气体压力为预定值，在基本假设条件下，由已知参数求出各目标函数（管道建设折算费用、压气站建设折算费用、运行费折算费用、总折算费用）。通过实例计算与方案比较，可以

On the Economic Model for the Design Optimization of Gas Transmission Pipeline.

A reasonable economic model for the all-round design optimization of gas pipeline is introduced, considering each factor having effect on the total investment of gas pipeline (pipe diameter, pipe wall thickness, compression ratio, gas pressure, investment's time value, etc. ) , and with the target functions being the costs by the end of equipments' service life. By means of this model, which maintains the preset terminal pressure, every target function can be calculated with the given parameters under basic assumed conditions. Option comparison shows that the model gives comprehensive indication about the effect of every factor on total cost. Wherever the case is applicable and parameters are defined, optimal valves can be obtained easily for all design variabless.