引用本文: 彭世垚, 柴冲, 杨诗怡等. 掺氢天然气压缩因子实验及计算方法研究. 力学与实践, xxxx, x(x): 1-11.
Peng Shiyao, Chai Chong, Yang Shiyi, et al. Study on experimental and computational method of compress factor of hydrogen-doped natural gas. Mechanics in Engineering, xxxx, x(x): 1-11.
 Citation: Peng Shiyao, Chai Chong, Yang Shiyi, et al. Study on experimental and computational method of compress factor of hydrogen-doped natural gas. Mechanics in Engineering, xxxx, x(x): 1-11.

## STUDY ON EXPERIMENTAL AND COMPUTATIONAL METHOD OF COMPRESS FACTOR OF HYDROGEN-DOPED NATURAL GAS

• 摘要: 天然气管道掺氢输送是解决我国氢能资源区域错位，实现氢能大规模输送的有效手段。掺氢天然气基础物性与天然气均有不同，其中压缩因子是进行掺氢天然气长输管道水力计算的关键参数，也是影响掺氢天然气计量准确性的关键参数之一。目前，国际上针对中高比例掺氢天然气压缩因子的研究较少，掺氢天然气压缩因子实验测试数据较少。本文开展了管输工况条件下甲烷-氢气-氮气（CH4-H2-N2）三元混合气体的压缩因子实验测试，分析实验工况范围内压缩因子随掺氢比、压力、温度的变化规律，并开展BWRS、PR、AGA8-92DC、GERG-2008四种状态方程在计算掺氢天然气压缩因子上的适应性评价。为便于工程应用，提出掺氢天然气压缩因子快速计算模型。

Abstract: Hydrogen-doped natural gas pipeline transportation is an effective means to solve the regional mismatch of hydrogen energy resources in China and realize the large-scale transportation of hydrogen energy. The compression factor and throttling effect coefficient of hydrogen-doped natural gas are different from those of natural gas, among which the compression factor is a key parameter for hydraulic calculation of long-distance hydrogen-doped natural gas pipeline, and also one of the key parameters affecting the accuracy of hydrogen-doped natural gas metering. At present, there are fewer international studies on the compression factor of medium and high proportion of hydrogen-doped natural gas, and fewer experimental test data on the compression factor of hydrogen-doped natural gas. This paper carries out the experimental test of compression factor of methane-hydrogen-nitrogen (CH4-H2-N2) ternary gas mixture under pipeline working conditions, analyzes the change rule of compression factor with hydrogen doping ratio, pressure and temperature within the experimental working conditions, and evaluates the adaptability of four equations of state, namely, BWRS-EOS, PR-EOS, AGA8-92DC-EOS, and GERG2008-EOS, for the calculation of compression factor of hydrogen-doped natural gas. In order to facilitate the engineering application, a fast calculation model of the compression factor of hydrogen-doped natural gas is proposed.

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