摘要
开展了气氧/煤油富燃燃气发生器在混合比0.25~0.50、室压1.0~4.0 MPa范围内的燃烧试验,获得了混合比和室压对发生器碳烟生成及沉积特性的影响规律。试验表明,在本研究范围内,富燃燃气发生器内的燃烧未达到化学平衡状态。当混合比小于0.4时,积碳量随混合比的增大略有增加,但均不明显;当混合比大于0.4时,积碳量显著增加。在室压1.0~4.0 MPa范围内,室压对碳烟的生成具有重要影响,并存在一个介于1.0~2.0 MPa之间的临界压力,当室压低于此临界压力时,燃烧过程中无碳烟生成。
A series of combustion gas generator, at mixture ratios from 0. experiments were carried out using a fuel-rich GOX/kerosene 25 to 0.50 and chamber pressures from 1.0 to 4.0 MPa. The effects of mixture ratio and chamber pressure on soot formation and deposition characteristics were obtained. The results showed that the state of chemical equilibrium was not attained in the combustion process. When mixture ratio is smaller than 0. 4, soot deposition is not significant and increases with the increase of mixture ratio slightly ; when mixture ratio is larger than 0.4, soot deposition increases remarkably. At chamber pressure from 1.0 to 4. 0 MPa, soot formation is found to be strongly dependent on chamber pressure. There is a critical pressure for soot formation which is between 1.0 N 2. 0 MPa. If chamber pressure is smaller than the critical pressure, there is no soot formation in the combustion.
出处
《火箭推进》
CAS
2017年第6期76-81,共6页
Journal of Rocket Propulsion
基金
重点实验室基金项目(61427040101)
关键词
煤油
富燃燃气发生器
碳烟
临界压力
kerosene
fuel-rich gas generator
soot
critical pressure
