二甲醚火焰传播速度的实验测定

EXPERIMENTAL MEASURED FLAME SPEEDS OF DIMETHYL ETHER

二甲醚被誉为21世纪的绿色燃料,是目前理想的内燃机与民用替代燃料.为了获得二甲醚应用的重要基础参数——火焰传播速度,在定容球弹法、本生火焰法和平面火焰法作出比较分析后,采用本生火焰法实验测定了二甲醚火焰的传播速度.得出了二甲醚火焰传播速度与一次空气系数的关系曲线,并且在一次空气系数约为0.85处,二甲醚火焰传播速度的峰值为0.48m/s.

Dimethyl ether substitute for gas engine and civil propagation speed ,after compare an ether are experimental measured by flame speeds and the primary air rat propagation speed of dimethyl ether is called as the green fuel of 21st century, it is a good fuel. In order to get applied fundamental parameter-flame d analysis of several measures, the flame speeds of dimethyl bunsen fire in this thesis. The curve of relationship between io is got, and when primary air ratio is about 0.85, the flame gets to its peak value-0.48 m/s.