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首页> 外文期刊>International journal of hydrogen energy >A Mathematical Framework For Modelling And Evaluating Natural Gas Pipeline Networks Under Hydrogen Injection
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A Mathematical Framework For Modelling And Evaluating Natural Gas Pipeline Networks Under Hydrogen Injection

机译：氢气注入下天然气管道网络建模与评估的数学框架

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This article presents the framework of a mathematical formulation for modelling and evaluating natural gas pipeline networks under hydrogen injection. The model development is based on gas transport through pipelines and compressors which compensate for the pressure drops by implying mainly the mass and energy balances on the basic elements of the network. The model was initially implemented for natural gas transport and the principle of extension for hydrogen-natural gas mixtures is presented. The objective is the treatment of the classical fuel minimizing problem in compressor stations. The optimization procedure has been formulated by means of a nonlinear technique within the General Algebraic Modelling System (GAMS) environment. This work deals with the adaptation of the current transmission networks of natural gas to the transport of hydrogen-natural gas mixtures. More precisely, the quantitative amount of hydrogen that can be added to natural gas can be determined. The studied pipeline network, initially proposed in [1] is revisited here for the case of hydrogen-natural gas mixtures. Typical quantitative results are presented, showing that the addition of hydrogen to natural gas decreases significantly the transmitted power: the maximum fraction of hydrogen that can be added to natural gas is around 6 mass% for this example.
机译：本文介绍了用于在氢气注入下对天然气管道网络进行建模和评估的数学公式框架。该模型的开发基于通过管道和压缩机的气体传输，这些气体通过主要暗示网络基本元素的质量和能量平衡来补偿压降。该模型最初用于天然气运输，并提出了氢-天然气混合物的扩展原理。目的是在压缩机站中解决经典的燃料最少化问题。优化程序是通过通用代数建模系统（GAMS）环境中的非线性技术制定的。这项工作致力于使当前的天然气传输网络适应氢-天然气混合物的运输。更精确地，可以确定可以添加到天然气中的氢气的定量数量。对于氢气-天然气混合物的情况，这里重新讨论了最初在[1]中提出的研究管道网络。给出了典型的定量结果，表明向天然气中添加氢气会显着降低传输功率：在此示例中，可添加至天然气中的氢气的最大比例约为6质量％。

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