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A mixed integer nonlinear programming model for optimizing a gas pipeline transmission linear network

机译：用于优化输气管道线性网络的混合整数非线性规划模型

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The technical equipment developed and used in both installation and operation processes in refineries, oil and gas pipelines, and gas booster stations has always been expensive. Hence, managers at different organizational levels are keen to find methods to control and reduce these costs. Generally speaking, the operators in a gas booster station choose the operating devices without considering the related costs. This research presents a mixed integer nonlinear programming model designed to minimize the operational costs of gas booster stations in a main pipeline distribution network. The goal is to optimize the choice of operating devices in these stations to minimize costs while still meeting customer demands. Turbo compressors are chosen as the operating devices and the operational costs are fuel, maintenance, start-up, and penalty costs. However, the significance indexes of these costs are valued differently by the three expert managers: the executive officer, operating head, and the overhaul repairing director. Consequently, the analytical hierarchy process (AHP) method is used to calculate the overall weights of costs, and a gas transmission company in the north of Iran is considered as a case study. The model can minimize the total cost, when compared to the selections of ten experienced operators; however, the absolute weights of choosing measures and the essence of the objective function under study mean that an operator choice exists that would represent the optimum selection of turbo compressors.
机译：在炼油厂，石油和天然气管道以及加气站的安装和操作过程中开发和使用的技术设备一直很昂贵。因此，不同组织级别的经理都渴望找到控制和减少这些成本的方法。一般而言，加气站的操作员在不考虑相关费用的情况下选择操作装置。这项研究提出了一种混合整数非线性规划模型，旨在最小化主管道分配网络中加气站的运营成本。目标是在这些工作站中优化操作设备的选择，以最大程度地降低成本，同时仍然满足客户需求。选择涡轮压缩机作为运行设备，运行成本为燃料，维护，启动和罚款成本。但是，这些成本的重要性指标由三位专家经理（执行官，运营主管和大修维修主管）不同地评估。因此，使用层次分析法（AHP）方法来计算总成本权重，并以伊朗北部的一家天然气运输公司为案例研究。与十个经验丰富的运营商的选择相比，该模型可以使总成本最小化;然而，选择措施的绝对权重和正在研究的目标函数的本质意味着存在着可以代表涡轮压缩机最佳选择的操作员选择。

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