摘要
利用多通道高温计测量燃料高速燃烧动态温度的方法,在爆炸激波管中模拟异辛烷,正庚烷、正辛烷、正庚烷+异辛烷混合物等烷烃高速燃烧。并用该方法考察了氧气对异辛烷高速燃烧温度的影响,及上述烷烃的辛烷值与高速燃烧温度的关系。结果表明,对于富含异辛烷的混合物,增加氧含量可以使高速燃烧温度增加;随着烷烃辛烷值的增加,高速燃烧温度下降,与利用传感器测量结果相吻合。本文所述的方法可以用于各种气-液相混合物高速燃烧温度的测量。
A multiwavelength pyrometer method that can be used to measure instantaneous temperature of high-speed combustion(called detonation) of fuels is described in this paper.High-speed combustion of 2,2,4 trimetylpentane,n-heptane, n-octane, and the mixture of 2,2,4-trimetylpentane and n-heptane were conducted in the explosion shock tube, then optical energy was transmitted by optical fibers. The influence of oxygen and the octane number of fuels as indicated above on the combustion temperature were investigated.The results show that as oxygen in the mixture increases, the combustion temperature of those fuels rich in 2,2.4-trimetylpentane increases too; as the octane number of alkanes increases, the combustion temperature decreases, they coincide with the results measured by gauges.This measuring method can be. also used to determine highspeed combustion temperature of gas-liquid mixtures.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1993年第2期219-224,共6页
Journal of Fuel Chemistry and Technology
基金
中国工程物理研究院科学基金
关键词
温度
燃烧
测量
燃料
temperature, high-velocity combustion, dynamic measurement
