Experiment and simulation on oxidation characteristics of natural gas

Yushi TIAN; Wen ZENG; Xiaoxiao CHEN; Erjiang HU; Jing LIU; Hongyu MA

doi:10.13224/j.cnki.jasp.20210409

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Experiment and simulation on oxidation characteristics of natural gas

Combustion,Heat and Mass Transfer | 更新时间：2025-03-14

- Experiment and simulation on oxidation characteristics of natural gas
- Journal of Aerospace Power Vol. 37, Issue 9, Pages: 1886-1895(2022)
- 作者机构：
  
  1.沈阳航空航天大学航空发动机学院，沈阳 110136
  2.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室，西安 710049
  3.中国航发沈阳发动机研究所，沈阳 110015
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.20210409
  CLC：
- 稿件说明：
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Yushi TIAN, Wen ZENG, Xiaoxiao CHEN, et al. Experiment and simulation on oxidation characteristics of natural gas[J]. Journal of Aerospace Power, 2022, 37(9): 1886-1895.
DOI：

Yushi TIAN, Wen ZENG, Xiaoxiao CHEN, et al. Experiment and simulation on oxidation characteristics of natural gas[J]. Journal of Aerospace Power, 2022, 37(9): 1886-1895. DOI： 10.13224/j.cnki.jasp.20210409.

摘要

在流动管反应器中对压力为0.1 MPa、温度范围为500~1 850 K、当量比分别为0.5、1.0与3.5的工况条件下天然气（90%甲烷/7%乙烷/3%丙烷，体积分数）的氧化过程进行了实验测试。同时，通过全局敏感性分析方法，构建了天然气的简化反应动力学机理（38组分和149反应），并对天然气的氧化特性进行了数值计算。结果表明：随着当量比增大，燃料发生氧化反应的起始温度与终止温度逐渐升高，CO生成与消耗完全对应的反应温度逐渐升高，NO的生成量逐渐降低。天然气的简化反应机理可以很好地预测天然气氧化过程中主要组分摩尔分数随温度变化的整体趋势；但是在C

、C

、NO、NO

的起始反应温度或摩尔分数峰值的预测上与相应实验值存在差异。

Abstract

The oxidation of natural gas （90% methane/7% ethane/3% propane，volume fraction） was experimentally tested in the flow reactor under the conditions of the pressure of 0.1 MPa，the temperature range of 550-1 850 K，the equivalence ratios of 0.5，1.0 and 3.5.Meanwhile，through the global sensitivity analysis，the reduced reaction kinetic mechanism of the natural gas （including 38 species and 149 reactions） was established，and the oxidation characteristics of the natural gas were simulated.The results showed that，with the increase of equivalent ratio，the starting and ending temperatures of fuel oxidation reaction gradually rose，the reaction temperature of CO generation and complete consumption raised，and the production of NO reduced.The reduced reaction mechanism of the natural gas had a good prediction of the variational trends of the mole fractions of the main species with temperature during the oxidation of the natural gas.However，there existed still some deviations in the prediction of the starting reaction temperature or the peak mole fractions of some species，such as C

，C

，NO and NO

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references

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Related Author

Erjiang HU

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Related Institution

Key Laboratory of Advanced Measurement and Test Technique for Aviation Propulsion System，Liaoning Province，School of Aero⁃engine， Shenyang Aerospace University

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