航天推进技术研究院主办
[1]张留欢,马化杰,周建平,等.氨解离度对无水肼ATR发动机性能影响研究[J].火箭推进,2019,45(02):16-19，52.
ZHANG Liuhuan,MA Huajie,ZHOU Jianping,et al.Performance analysis of hydrazine ATR with different dissociated ratios of NH3different[J].Journal of Rocket Propulsion,2019,45(02):16-19，52.
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ZHANG Liuhuan,MA Huajie,ZHOU Jianping,et al.Performance analysis of hydrazine ATR with different dissociated ratios of NH3different[J].Journal of Rocket Propulsion,2019,45(02):16-19，52.
氨解离度对无水肼ATR发动机性能影响研究
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
45
期数:
2019年02期
页码:
16-19，52
栏目:
研究与设计
出版日期:
2019-04-30
- Title:
- Performance analysis of hydrazine ATR with different dissociated ratios of NH3different
- 文章编号:
- 1672-9374(2019)02-0016-04
- Keywords:
- Hydrazine; ATR; dissociated ratio of NH3
- 分类号:
- V439
- 文献标志码:
- A
- 摘要:
- 基于无水肼ATR发动机,开展了氨解离度对涡轮前燃气及发动机总体性能的影响研究,对不同氨解离度时无水肼ATR发动机性能进行计算对比。结果显示,随着氨解离度x升高,无水肼分解燃气温度降低,H2、N2在分解混合气中的质量百分比升高,燃气比热比、气体常数数值升高; 在地面状态同一转速下,x越小,发动机比冲越高。在100%物理转速时,x=0.29对应的发动机比冲最高且为808 s,无水肼流量为0.999 kg/s,较x=0.8发动机比冲提高最大约7.3%,无水肼流量减小约7.33%; 同一高空条件100%转速下,x越小,发动机比冲越高。在22 km/3.5Ma条件下,x=0.29较x=0.8发动机比冲提高最大约14.6%,无水肼流量减小约8.2%。在同一ATR发动机、同一转速下,氨解离度越低,涡轮等熵功越大,无水肼流量越小,发动机比冲越高。
- Abstract:
- Based on hydrazine ATR, performance analysis of hydrazine ATR with different dissociated ratios of NH3(x)was presented here.And the calculation and comparison about performance of ATR with different x were carried out.The results show that as x increases, temperature of gas decreases which is dissociated from hydrazine by catalysis, mass percentage of H2, N2 increases, and the value of specify heat ratio and gas constant goes up.On the ground state, the specify impulse of ATR increases as x decreases under the same rev.When the physical rev is 100% and x=0.29, the specify impulse reaches top 808s, which is 7.3% higher than that at x=0.8, and the mass flow rate of hydrazine is 0.999 kg/s, which is 7.33% lower than that at x=0.8.Under the condition of high altitude, the specify impulse of ATR increases as x decreases under the same rev.The specify impulse and mass flow rate, with x of 0.29, are 14.6% and 8.2% higher than that at x =0.8 when the flight condition is 22 km/3.5Ma respectively.With the same ATR engine and rev, as the dissociated ratio of NH3 decreases, isentropic work of turbine increases, mass flow rate of hydrazine decreases and specify impulse of ATR increases.
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备注/Memo
收稿日期:2017-11-02; 修回日期:2018-01-02 基金项目:装备预研航天科技联合基金(6141B060626040) 作者简介:张留欢(1986—),男,硕士,工程师,研究领域为组合推进系统气动热力技术
更新日期/Last Update:
2019-04-30