کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7705435 1497294 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of rotating detonation wave fueled by “ethylene-acetylene-hydrogen” mixture
ترجمه فارسی عنوان
بررسی موج چرخش موج انفجاری بوسیله اتیلن استیلن-هیدروژن مخلوط
کلمات کلیدی
مخلوط کردن گازها، انفجار چرخشی، بی ثباتی، اتصال حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
In this study, the stable operating range and basic characteristics including the pressure and speed of a rotating detonation are researched. The fuel is an “ethylene-acetylene-hydrogen” mixture, examined at three mixing ratios of 2:1:4, 2.2:1:4, and 1.8:1:4 (ethylene:acetylene:hydrogen). The pressure of the rotating detonation wave (RDW) increases when the equivalence ratio (ER) is near the stoichiometric ratio, but it is little affected by the flow rate. The detonation wave speed maintains at 1200-1400 m/s, approximately 70% of the Chapman-Jouguet (C-J) speed, which is hardly impacted by the ER and flow rate. The speed of the RDW in the long-duration tests is higher than in the short-duration tests, and the time taken for the formation of a stable RDW is longer. The stable operating range is broadened and speed is increased with the increase in the acetylene and hydrogen in the mixture. The instabilities in the RDW are found to be correlated with the planar acoustic waves, whereas the mechanisms of the decoupling and re-ignition of the RDW are explained from the perspective of thermoacoustic coupling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 31, 2 August 2018, Pages 14787-14797
نویسندگان
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