NEPE推进剂的高压燃烧特性研究

推进技术 ›› 2008, Vol. 29 ›› Issue (4): 508-512.

NEPE推进剂的高压燃烧特性研究

张小平,李葆萱,汪越,郭翔

西北工业大学航天学院;湖北航天化学技术研究所;西北工业大学航天学院;湖北航天化学技术研究所;湖北航天化学技术研究所

发布日期:2021-08-15
基金资助:
国防科技重点实验室基金(51455030204HT4202)

Study on combustion characteristics of NEPE propellant at high pressure

Coll.of Astronautics,Northwestern Polytechnical Univ.,Xi′an 710072,China;Hubei Inst.of Aerospace Chemotechnology,Xiangfan 441003,China;Coll.of Astronautics,Northwestern Polytechnical Univ.,Xi′an 710072,China;Hubei Inst.of Aerospace Chemotechnology,Xiangfan 441003,China;Hubei Inst.of Aerospace Chemotechnology,Xiangfan 441003,China

Published:2021-08-15

摘要/Abstract

摘要： 应用高压燃速测试、微热电偶测温及燃烧火焰单幅摄影等技术,研究了NEPE推进剂的高压燃烧特性与燃烧机理。实验结果表明:NEPE推进剂高压压强指数出现拐点;且随压强以及AP含量升高,燃烧波由硝胺-CMDB向AP-CMDB推进剂转变。分析认为硝酸酯基的含量及AP单元推进剂的扩散火焰是控制NEPE推进剂燃速及压强指数的主要因素。

关键词: 固体推进剂;高压燃烧+;燃速;压强指数+

Abstract: The combustion characteristics of NEPE propellants were studied in detail by measuring flame structure,combustion waves and SEM,et al.It was showed that pressure exponent of NEPE propellant had a inflection point at high pressure.The model of combustion process of NEPE propellant is transferred from nitramine-CMDB propellant type to AP-CMDB propellant type with the increase of combustion pressure and the content of AP.The content of nitrate ester group,and the diffusion progress of AP monopropellant flame in gas-phase were significant manipulative factors in controlling the inherent burning rate and pressure exponent of NEPE propellants.

Key words: Solid propellant;High pressure combustion+;Burning rate;Pressure exponent+

张小平,李葆萱,汪越,郭翔. NEPE推进剂的高压燃烧特性研究[J]. 推进技术, 2008, 29(4): 508-512.