• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Combustion characteristics of extruded double base propellant based on ammonium perchlorate/aluminum binary mixture
【24h】

Combustion characteristics of extruded double base propellant based on ammonium perchlorate/aluminum binary mixture

机译：高氯酸铵/铝二元混合物挤压双基推进剂的燃烧特性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Much attention has been directed toward the development of modified double base (MDB) propellant as it can offer high specific impulse as well as wide range of burning rate. One of the main approaches for the development of MDB propellant is the integration of potential oxidizers and metal fuels. This study reports on, the impact of potential oxidizers including potassium perchlorate (KP) and ammonium perchlorate (AP) on combustion characteristics of double base (DB) propellant. The impact of these energetic additives on burning rate and the characteristic exhaust velocity of gaseous product (C*) were evaluated using small-scale ballistic evaluation test motor. The two potential oxidizers KP and AP exhibited controversy effects; whereas KP positively impact the burning rate, AP positively impact C*. The partial replacement of AP with aluminum metal fuel demonstrated a positive impact on both the burning rate and C*. Aluminum metal fuel offered an increase the combustion temperature, and propellant thermal conductivity. Consequently, it could alter the combustion mechanism, by thinning the induction zone, allowing the luminous flame zone to be more adjacent to the burning surface. Accordingly, the combustion reaction could proceed faster. While, MDB based on AP/Al were found to be more energetic with an increase in calorific value to reference formulation using bomb calorimetery; they exhibited good thermal stability in terms of ignition temperature using cook off test, and accepted thermal behavior using DSC. (C) 2017 Elsevier Ltd. All rights reserved.
机译：改性双碱（MDB）推进剂的开发已引起了很多关注，因为它可提供高比冲以及广泛的燃烧速率。开发MDB推进剂的主要方法之一是潜在氧化剂和金属燃料的整合。这项研究报告了包括高氯酸钾（KP）和高氯酸铵（AP）在内的潜在氧化剂对双碱（DB）推进剂燃烧特性的影响。使用小型弹道评估试验电机评估了这些高能添加剂对燃烧速率和气态产物特征排气速度（C *）的影响。两种潜在的氧化剂KP和AP具有争议性。 KP对燃烧速率有正面影响，AP对C *有正面影响。用铝金属燃料部分替代AP表现出对燃烧速率和C *的积极影响。铝金属燃料增加了燃烧温度，并提高了推进剂的导热性。因此，它可以通过减薄感应区来改变燃烧机理，从而使发光火焰区更靠近燃烧表面。因此，燃烧反应可以进行得更快。同时，发现基于AP / Al的MDB的能量更高，其热值相对于使用炸弹量热法的参考配方有所增加。通过蒸煮测试，它们在点火温度方面表现出良好的热稳定性，而使用DSC则具有可接受的热性能。 （C）2017 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号