CAJ | 학술논문

利用双膜化学激波管实验装置反射激波方法测量了丙烯/氧气/氮气混合气在温度范围为1650～1900 K、压力为0.1 MPa下的着火滞燃期.通过对理想激波管内流动状态分析,给出了合适的着火滞燃期定义.实验结果表明:随着初始温度的增加,丙烯/氧气/氮气混合气着火滞燃期缩短,着火滞燃期的对数与温度的倒数成正比,入射激波强度与着火滞燃期的对数成反比;高温条件下,混合气的着火滞燃期随着初始压力的增加而增加,随浓度的增加而缩短;利用多元线性回归方法拟合了C_3H_6着火滞燃期的Arrhenius型关系式,计算结果与文献中的实验数据具有很好的吻合性.
이용쌍막화학격파관실험장치반사격파방법측량료병희/양기/담기혼합기재온도범위위1650～1900 K、압력위0.1 MPa하적착화체연기.통과대이상격파관내류동상태분석,급출료합괄적착화체연기정의.실험결과표명:수착초시온도적증가,병희/양기/담기혼합기착화체연기축단,착화체연기적대수여온도적도수성정비,입사격파강도여착화체연기적대수성반비;고온조건하,혼합기적착화체연기수착초시압력적증가이증가,수농도적증가이축단;이용다원선성회귀방법의합료C_3H_6착화체연기적Arrhenius형관계식,계산결과여문헌중적실험수거구유흔호적문합성.
Ignition delay times were measured for propene/oxygen/nitrogen mixtures behind reflected shock waves in a double diaphragm chemical shock tube in the range of 1650-1900 K and at 0.1 MPa.An appropriate definition of ignition delay time was proposed based on an analysis of the flow condition in an ideal shock tube.The experiment results show that the ignition delay times of the mixtures decreased with the increase in initial temperature.The logarithmic value of the ignition delay times was proportional to the reciprocal of temperature and inversely proportional to incident shock intensity.Under high temperature conditions,the ignition delay times increased with the increase in initial pressure and decreased with the increase in the concentration of propene in the mixtures.An Arrhenius-type correlation equation for the ignition delay time of propene/oxygen/nitrogen mixtures was developed,and its calculation results agree well with the data in literature.