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شبیهسازی تاثیر نانوکاتالیست‌های موجود در سوخت بر عملکرد احتراق موتور پیشرانه مایع با استفاده از دینامیک سیالات محاسباتی | ||
| مکانیک سیالات و آیرودینامیک | ||
| مقاله 10، دوره 9، شماره 1 - شماره پیاپی 25، تیر 1399، صفحه 151-165 اصل مقاله (1.29 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| محمدعلی رنجبر* 1؛ علیرضا پورموید2 | ||
| 1دانشگاه پدافند هوایی خاتم الانبیاء(ص)- دانشکده مهندسی مکانیک | ||
| 2استادیار، دانشکده مهندسی مکانیک، دانشگاه پدافند هوایی خاتم الانبیاء(ص)، تهران، ایران | ||
| تاریخ دریافت: 04 آبان 1399، تاریخ بازنگری: 23 آبان 1399، تاریخ پذیرش: 29 دی 1399 | ||
| چکیده | ||
| در این تحقیق محفظه احتراق موتور پیشرانه مایعبهصورت عددی و با استفاده از روش دینامیک سیالات محاسباتی شبیهسازی شده است. پس از شبیهسازی، چندین روش شامل استفاده از بافل درون محفظه احتراق، نانوکاتالیست و افزایش نسبت همارزی بهمنظور بهبود احتراق پیشنهاد شدهاند. در هریک از این روشها، دمای احتراق، کسر جرمی سوخت و اکسیدکننده، کسر جرمی محصولات احتراق و کسر جرمی آلایندهها محاسبه و با محفظه ساده مقایسه شده است. نتایج نشان داد که استفاده از این روشها به صورت میانگین موجب افزایش گرمای احتراق به میزان 36/28 درصد، کاهش کسر جرمی سوخت به میزان 91/27 درصد، افزایش کسر جرمی محصولات احتراق کامل شامل آب و نیتروژن و کاهش کسر جرمی آلاینده ناکس به میزان 85/26 درصد می‌شود که آلاینده ناکس بهعنوان محصول احتراق ناقص می‌باشد و به‌طورکلی کاهش آن نشان دهنده احتراق بهتر است. | ||
| کلیدواژه‌ها | ||
| محفظه احتراق؛ تراست؛ دینامیک سیالات محاسباتی؛ نانوکاتالیست | ||
| عنوان مقاله [English] | ||
| Simulation of the Effect of Fuel Nano Catalysts on the Combustion Performance of a Liquid Propellant Engine using Computational Fluid Dynamics | ||
| نویسندگان [English] | ||
| Mohammad ali Ranjbar1؛ Alireza Pourmoayed2 | ||
| 1khatamol anbia university | ||
| 2Asistant prof, Department of Mechanical Engineering, Khatmol Anbia Air Defense, Tehran, Iran | ||
| چکیده [English] | ||
| In this research, the combustion chamber of the liquid propellant engine has been simulated numerically by the computational fluid dynamics (CFD) method. After the simulation, several methods have been proposed to improve the combustion. These include using baffle inside the combustion chamber, increasing the equilibrium ratio and the nano catalyst. In each of these methods, the combustion temperature, mass fraction of fuel and oxidizer, mass fraction of combustion products and mass fraction of pollutants were calculated and compared with a simple chamber. The results showed that using these methods increases the combustion heat by 28.36%, reduces fuel mass fraction by 27.91%, increases mass fraction of complete combustion products including water and nitrogen, and reduces NOx pollutant mass fraction by 26.85 as it is known that NOx pollutant is a product of incomplete combustion and generally reducing it results in better combustion. | ||
| کلیدواژه‌ها [English] | ||
| Combustion chamber, Thrust, Computational Fluid Dynamics, Nano Catalyst | ||
| مراجع | ||
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