学位論文

密閉容器を用いた微小重力環境下での炭化水素－空気混合気の燃焼特性

Influence of Oxygen Concentration on Burning Velocity of Hydrocarbon-Air Mixtures

jpn

2006-03-24

Not Applicable (or Unknown)

2006-03-24

修士(工学)

工学研究科機械工学専攻; 指導教授: 川上忠重

This experiment has been conducted to observe the combustion characteristics of propane-air mixtures under normal and microgravity achieved in a freely falling chamber at an initial temperature of 298K and pressure 0.1MPa. The mixtures of 79 to 81% nitrogen and 19 to 21% by volume are used as a substitute for air (Oxygen concentration: 19vol% and 21vol%). The main conclusions are as follows: 1)The flame propagation speed of the propane-air mixtures under normal gravity near the flammability limits is subjected to a marked influence of the propagation direction. 2) The effect of oxygen concentration of flame speed is much larger for fuel rich side then that of fuel lean side.

Thesis