کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
167288 457849 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selection of burning rate modifiers for hydrazinium nitroformate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Selection of burning rate modifiers for hydrazinium nitroformate
چکیده انگلیسی

Species including N2H4, NH3 and N2O are known to be present near the surface of burning hydrazinium nitroformate (HNF). In this paper, planar laser induced fluorescence from the near surface region of burning HNF pellets is reported indicating the presence of NO2. These four species are formed in the upper (foamy) layer of the solid phase. A burning rate modifier might be selected to induce reactions between the gaseous species in this layer. Selective catalytic reduction (SCR) is able to start highly exothermic reactions at relatively low temperatures. The SCR catalyst V2O5 increases the burning rate of HNF by a factor of 11 at 0.1 MPa. The pressure exponent is reduced to 0.28, far below the target value of 0.5 required for practical application of HNF in propellant formulations. As far as SCR catalysts have been tested as burning rate modifiers of HNF, they are effective, yet incompatible. To overcome this incompatibility remedies might possibly be found in high-temperature catalysts, or in coating particles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Combustion and Flame - Volume 159, Issue 2, February 2012, Pages 882–886
نویسندگان
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