Ignition Delays of Mixtures of the Non‐Hypergolic Energetic Ionic Liquid Hydroxyethylhydrazinium Nitrate Blended with Unsymmetrical Dimethylhydrazine

Swami Umakant; Senapathi Krishnamachary; Srinivasulu Krishna Mohan; Desingu Jayaraman; Chowdhury Arindrajit

摘要

Abstract > The study deals with the investigation of energetic ionic liquids capable of serving as both monopropellants and bipropellants on a single mission. Various blends of the monopropellant hydroxyethylhydrazinium nitrate (HEHN), which was found to be non‐hypergolic with red fuming nitric acid (RFNA) and white fuming nitric acid (WFNA) under ambient conditions, were formulated with known hypergols to impart hypergolicity and to reduce the viscosity and surface tension of pure HEHN. Considering the miscibility and the ignition delays of the chosen hypergols, unsymmetrical dimethylhydrazine (UDMH) was chosen as the candidate for combustion characterization through measurement of ignition delays. UDMH‐HEHN blends containing a minimum of 30?% and 40?% UDMH by weight were found to be hypergolic with RFNA and WFNA, respectively. Meticulous experiments were conducted to measure the ignition delays in a drop test setup, equipped sequentially with a high‐speed camera, which was primarily utilized to observe the physico‐chemical events governing ignition, as well as an optoelectronic diagnostic setup, which was utilized to segregate the physical and chemical ignition delays. Standard hypergolic propellants were chosen to compare the veracity of the data from the optoelectronic diagnostics setup with those obtained using a high‐speed camera. The hypergolic blend containing 60?% UDMH was found to be the best candidate, owing to its low ignition delay of 5.8?ms with RFNA, 80?% lower vapor pressure compared to UDMH, and 30?g‐s/cm 3 higher predicted vacuum density specific impulse than UDMH with IRFNA. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 该研究涉及能够在单一任务中作为单普林蛋白和双链体的能量离子液体的研究。在环境条件下发现硝酸单丙酸羟乙基肼（Hehn）的各种共混物（Hehn），其在环境条件下与红色熏蒸硝酸（RFNA）和白色卷发硝酸（WFNA）配制，用已知的高胆汁配制，以赋予高胆胆怯并减少纯Hehn的粘度和表面张力。考虑所选择的高胆汁的混溶性和点火延迟，选择不对称二甲基肼（UDMH）作为通过测量点火延迟来燃烧表征的候选剂。发现含有至少30μm和40μl％的UDMH的UDMH-HEHN共混物分别与RFNA和WFNA的高胆患者。进行细致的实验以测量下降试验装置中的点火延迟，其用高速摄像头顺序配备，主要用于观察到点火的物理化学事件，以及用于用于的光电诊断设置分离物理和化学点火延误。选择标准的高温推进剂，以将数据与使用高速摄像机获得的数据的数据与光电诊断装置的真实性进行比较。发现含有60μl％的UDMH的高胆素混合物是最佳候选者，由于其具有RFNA的低点火延迟为5.8Ωms，与UDMH相比，蒸气压低80倍，30Ω·克/厘米 3 </ sup> 更高的预测真空密度特异性脉冲与IRFNA的UDMH。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" > 著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-29946/'>《Propellants, Explosives, Pyrotechnics 》</a> <b style="margin: 0 2px;">|</b><span>2019年第9期</span><b style="margin: 0 2px;">|</b> <span>共8页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Swami Umakant&option=202" target="_blank" rel="nofollow">Swami Umakant;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Senapathi Krishnamachary&option=202" target="_blank" rel="nofollow">Senapathi Krishnamachary;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Srinivasulu Krishna Mohan&option=202" target="_blank" rel="nofollow">Srinivasulu Krishna Mohan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Desingu Jayaraman&option=202" target="_blank" rel="nofollow">Desingu Jayaraman;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chowdhury Arindrajit&option=202" target="_blank" rel="nofollow">Chowdhury Arindrajit;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Mechanical EngineeringIndian Institute of Technology BombayPowai Mumbai 400076 India;</p> <p>Defence Research Development Laboratory DRDOHyderabad 500058 India;</p> <p>Defence Research Development Laboratory DRDOHyderabad 500058 India;</p> <p>Defence Research Development Laboratory DRDOHyderabad 500058 India;</p> <p>Department of Mechanical EngineeringIndian Institute of Technology BombayPowai Mumbai 400076 India;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li> <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span> <a href="https://www.zhangqiaokeyan.com/clc/1837.html" title="爆炸物工业、火柴工业">爆炸物工业、火柴工业 ;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Energetic ionic liquids&option=203" rel="nofollow">Energetic ionic liquids;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=hypergolic propellants&option=203" rel="nofollow">hypergolic propellants;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=drop test setup&option=203" rel="nofollow">drop test setup;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ignition delay&option=203" rel="nofollow">ignition delay;</a> </p> <div class="translation"> 机译：精力充沛的离子液体;高胆肠推进剂;掉落试验设置;点火延迟; 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