بررسی پارامترهای مؤثر بر سیکلون جداکنندة ذرات آلومینیوم موجود در سوخت‌های جوشان

نوع مقاله: مقالة‌ تحقیقی‌ (پژوهشی‌)

نویسندگان

1 دانشگاه تربیت مدرس

2 دانشگاه تربیت مدرس - دانشکده مکانیک

3 پارک علم و فناوری دانشگاه تربیت مدرس

چکیده

افزودن ذرات فلزی با قطر بهینه به سوخت­های جوشان موجب افزایش چگالی گازهای خروجی از دهانه موتور و در نهایت افزایش تراست سیستم می­شود. از سوی دیگر، در صورت بهینه نبودن قطر ذرات افزوده، ناپایداری احتراق ایجاد می­شود. از این رو جداسازی ذرات با قطر مناسب اهمیت بالایی دارد. در این پژوهش از میان روش­های مختلف جداسازی ذرات آلومینیوم موجود در سوخت به بررسی عملکرد جداکنندة سیکلونی مخروطی شکل، پرداخته شده است به این منظور ابتدا شبکه­بندی سیکلون با روش­های مناسبی انجام می­شود و سپس نتایج عددی با آزمایشات گزارش شده در مقالات صحه­گذاری می­شود. با بررسی اثرات قطر، سرعت ذره و زاویة شیب می­توان دریافت که در یک قطر و سرعت ذرة مشخص، با کمتر کردن شیب سیکلون یعنی زاویة بدنة‌ آن با افق، بازده جداسازی افزایش می­یابد. همچنین هرچه مقطع ورودی ذرات آلومینیوم به سیکلون در نقطة پایین­تری از بدنة سیکلون ساخته شود، بازده جداسازی بیشتر خواهد بود. 

کلیدواژه‌ها


عنوان مقاله [English]

Effective Parameters of the Aluminum Particles Cyclone Separator in the Effervescent Fuel

نویسندگان [English]

  • Javad Vaziri Naein Nejad 1
  • F. Ommi 2
  • Seyed Hossein Moosavi 3
چکیده [English]

The addition of proper-sized metal particles to the effervescent fuels increases the density of exhaust gases from rocket engines and the trust consequently. On the other hand, the addition of non-optimized metal particles causes combustion instability. Thus, the separation of proper-sized metal particles is under consideration here. In this study, among different methods of separating the aluminum particles in the fuel, the performance of the conic cyclone separator has been studied and the numerical results are validated by the experimental data. With a specific particle diameter and speed, the less the angle between the cyclone body and the horizon, the higher would be the separation efficiency. In addition, for increasing the separation efficiency of aluminum particle, it is recommended to build the inlet section of cyclone at the lower point of cyclone body.

کلیدواژه‌ها [English]

  • Cyclone
  • Separation
  • Turbulent Flow
  • Two phase
  • Effervescent fuel

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