实验研究气体燃料掺烧氢气的火焰层流燃烧特性  

Study on Laminar Combustion Characteristic ofLow Calorific Value Gas Mixed with Hydrogen

作　　者：霍凯[1] 刘玉琳[1] 陈宇飞 刘建华[1] HUO Kai;LIU Yulin;CHEN Yufei;LIU Jianhua(School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《拖拉机与农用运输车》2022年第4期33-37,共5页Tractor & Farm Transporter

基　　金：国家重点研发计划支持(超级节能型重型载货汽车混合动力系统开发研究,2017YFB0103501)。

摘　　要：开展了低热值气体燃料掺烧氢气的实验研究。搭建了定容燃烧弹实验系统,分析了不同初始条件下低热值气体掺氢燃料的火焰层流燃烧速度的变化趋势。实验结果表明,增加初始压力会降低火焰的层流燃烧速度;增加初始温度会提高火焰的层流燃烧速度;掺氢比的增加会提高火焰的层流燃烧速度,但增加了火焰的不稳定性;当量比对火焰层流燃烧速度的影响比较复杂,一般浓混合气燃烧速度大于稀混合气。本文的研究为低热值气体燃料掺氢发动机的设计和开发提供实验依据。In this paper,the laminar combustion velocity of low calorific value gases blended hydrogen is experimentally studied in the constant volume combustion bomb.An experimental system of constant volume combustion bomb was set up,and the variation trend of laminar flame velocity of low calorific value blended hydrogen is analyzed under different initial conditions.The experimental results show that increasing the initial pressure will reduce the laminar combustion speed of the flame,while increasing the initial temperature will increase the laminar combustion speed of the flame.With the increase of hydrogen ratio,the laminar combustion speed of flame and instability of flame increases.The influence of equivalence ratio on laminar combustion velocity of flame is quite complex,generally,the burning speed of the rich mixture is greater than that of the lean mixture.The research in this paper can provide experimental basis for the design and development of low calorific value blended hydrogen engine.

关 键 词：低热值气体燃料 氢气 层流燃烧 定容燃烧弹 

分 类 号：TK91[动力工程及工程热物理]