爆破器材2026，Vol.55Issue(3)：10-17,23,9.DOI:10.3969/j.issn.1001-8352.2026.03.002
硝酸异丙酯含量对正庚烷激波诱导点火的影响
Influences of Isopropyl Nitrate Content on Ignition of n-Heptane Induced by Shock Waves
马善学 1李建 2唐琦 3李亚宁 2范源麟 2郭祎嘉 1王伯良2
作者信息
- 1. 南京理工大学安全科学与工程学院(江苏 南京,210094)
- 2. 南京理工大学化学与化工学院(江苏 南京,210094)
- 3. 晋西工业集团有限责任公司(山西 太原,030027)
- 折叠
摘要
Abstract
In order to understand the promoting effect of isopropyl nitrate(IPN)as an energetic sensitizer on shock wave induced ignition of n-heptane(HP),a shock tube experimental platform was used,combined with pneumatic atomi-zation and high-speed camera technology,to investigate the effects of IPN mass fraction(0,10%,20%,30%)and inci-dent shock wave pressure(8 000,9 000,11 000 kPa)on the shock wave induced ignition characteristics of HP.The re-sults show that the single-component HP fails to ignite at 1 051-1 317 K.The addition of IPN significantly reduces ignition delay time,and the critical mass fraction for ignition ranges from 10%to 20%at 9 000 kPa.When the mass fraction of IPN increases from20%to30%,the ignition delay time is shortened by about 37.5%,and the flame propagation speed increases from 2.75 mm/μs to 3.57 mm/μs,with an increase of 29.8%.Increasing the intensity of shock waves can also promote ignition,but the effect weakens with the increase of IPN.Fuels with low IPN content are more sensitive to changes in shock wave intensity.The synergistic mechanism of IPN chemical sensitization and shock wave physical compression in promoting ignition of hydrocarbon fuels was revealed,providing experimental basis for fuel design and combustion control under extreme conditions.关键词
燃料空气炸药/硝酸异丙酯/正庚烷/气动雾化/激波诱导点火Key words
fuel-air explosive/isopropyl nitrate/n-heptane/pneumatic atomization/ignition induced by shock wave分类
化学化工引用本文复制引用
马善学,李建,唐琦,李亚宁,范源麟,郭祎嘉,王伯良..硝酸异丙酯含量对正庚烷激波诱导点火的影响[J].爆破器材,2026,55(3):10-17,23,9.
