化学工程2026，Vol.54Issue(5)：63-68,75,7.DOI:10.3969/j.issn.1005-9954.2026.05.011
聚甲氧基二甲醚燃烧动力学模型开发与简化
Development and reduction of combustion kinetic model for polyoxymethylene dimethyl ethers
摘要
Abstract
OMEn(polyoxymethylene dimethyl ethers)are promising renewable synthetic fuels,and understanding their combustion characteristics and kinetic mechanisms is crucial for engineering applications.Based on the evaluation of the prediction accuracy of existing models,a detailed kinetic model for OME1-5 containing 438 species and 4 103 reactions was developed by following the reaction classes and rate rules of the optimal model.Subsequently,the detailed model was reduced using a multi-stage reduction method,including the direct relation graph method with error propagation and the isomer lumping method.In this process,isomers such as fuel radicals,QOOH and ketohydroperoxides were classified and lumped according to differences in dehydrogenation carbon sites and transition state ring sizes.Ultimately,a reduced model with 106 species and 546 reactions was obtained.Simulation results demonstrate that both models can accurately predict key combustion parameters such as ignition delay time,laminar flame speeds and species mole fraction for OME1-5.The reduced model achieves a computational efficiency improvement of approximately 17 times compared to the detailed model while maintaining prediction accuracy.关键词
聚甲氧基二甲醚/燃烧反应动力学模型/反应类/模型简化/集总Key words
polyoxymethylene dimethyl ethers/combustion kinetic model/reaction class/model reduction/lump分类
能源科技引用本文复制引用
熊绪坤,莫子鸣,鲁晨昱,袁建..聚甲氧基二甲醚燃烧动力学模型开发与简化[J].化学工程,2026,54(5):63-68,75,7.
