摘要
利用CHEMKIN PRO气相化学反应动力学分析程序,对正丁醇详细化学反应动力学机理的基本反应链进行数值分析,找出正丁醇燃料在低温反应阶段和高温反应阶段所涉及的主要反应路径和中间产物.基于“半解耦”方法,以小分子机理C1/CO/H2作为“内核”,耦合正丁醇低温反应和大分子向小分子过渡反应的主要机理,构建了新的正丁醇化学反应动力学简化机理.该机理包含70种组分和150个基元反应,并通过了一维层流火焰速度、激波管等基础反应器的实验数据验证.结果表明,本文构建的正丁醇化学反应简化机理,不仅可以准确计算正丁醇滞燃期的发展,也能够合理预测层流火焰速度的演变趋势.
Using the gas-phase chemical reaction kinetics software CHEMKIN PRO,the basic reaction chain of the detailed chemical reaction kinetics model of n-butanol was numerically analysed,so as to find out the main reaction paths and intermediate products involved in the low-temperature and high-temperature reaction phases of n-butanol fuel.Based on the semi-decoupling methodology,the small molecule mechanism of C1/CO/H2 was taken as the kernel for n-butanol,and coupling the main mechanisms of low-temperature reaction and the transition reaction from large molecules to small molecules,a new reduced chemical reaction kinetic model of n-butanol with 70 species and 150 reactions was developed,which was validated by the tested data of basic reactors,such as the one-dimensional laminar flame speed and shock tube.The results show that the developed new reduced mechanism of n-butanol can both accurately calculate the ignition delay time,and reasonably predict the evolution trend of the laminar flame speed.
作者
刘凯敏
鄂加强
马寅杰
杨靖
罗武生
陈小强
LIU Kaimin;E Jiaqiang;MA Yinjie;YANG Jing;LUO Wusheng;CHEN Xiaoqiang(State Key Laboratory of Advanced Design and Manufacturing Technology for Vehicle,Hunan University,Changsha 410082,China;School of Mechanical and Intelligent Manufacturing,Central South University of Forestry and Technology,Changsha 410004,China)
出处
《湖南大学学报(自然科学版)》
北大核心
2025年第12期38-46,共9页
Journal of Hunan University:Natural Sciences
基金
湖南省自然科学基金项目(2024JJ5645)
湖南省教育厅科学研究项目(21B0243)。
关键词
正丁醇
滞燃期
层流火焰速度
简化机理
n-butanol
ignition delay
laminar flame speed
reduced mechanism
