آمار
| تعداد نشریات | 36 |
| تعداد شماره‌ها | 1,192 |
| تعداد مقالات | 8,579 |
| تعداد مشاهده مقاله | 6,989,849 |
| تعداد دریافت فایل اصل مقاله | 4,033,358 |
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 | ||
|
1 Cameron, C.D., Brouwer, J., Wood, C.P. And Samuelsen G.S. “A detailed characterization of the velocity and thermal fields in a model can combustor with wall jet injectionˮ, Journal of Engineering for Gas Turbines and Power. Vol. 111. No. 1. 31-35, 1989.## 2 Ziani, L., Chaker, A., Chetehouna, K., Male,k, A. And Mahmah, B. “Numerical simulations of non-premixed turbulent combustion of CH4-H2 mixtures using the PDF approachˮ, Journal of Hydrogen Energy. Vol. 38. 8597-8603, 2013.## 3 Göke, S. “Influence of steam dilution on the combustion of natural gas and hydrogen in premixed and rich-quench-lean combustorsˮ, Fuel proc tech;107:14-22, 2013.## 4 See, Y.C., Ihme, M. “Large eddy simulation of a partially premixed gas turbine model combustorˮ, Proceedings of the Combustion Institute. Vol. 35. No. 2. 1225–1234, 2014.## 5 Jin, Y., Li, Y. “Experimental investigations on flow field and combustion characteristics of a model trapped vortex combustorˮ, Applied energy Journal, 134:257-269, 2014.## 6 Khalil, A., Gupta, A. “Velocity and turbulence effects on high intensity distributed combustionˮ, Applied Energy Journal, 125:1-9, 2014.## 7 Kurreck, M., Willmann, M., and Wittig, S. “Prediction of the three-dimensional reacting two-phase flow within a jet-stabilized combustorˮ, Journal of Engineering Gas Turbine Power, 120:77–83, 1998.## 8 Bazdidi, F., Zeinivand, H. “Presumed PDF modeling of reactive two phase flow in a three dimensional jet-stabilized model combustorˮ, Energy Convers Manage, 51:225–234, 2010.## 9 Vaziri, A., Mosavi, M. “The effect of aluminum nanoparticles on the burning speed and combustion properties of composite solid propellantsˮ, First National Conference on Nanotechnology, Iran, 1392. (In Persian)## 10 Mirzajanzade, M., Arjmand, M., Rashidi, A., and Ghobadian, B. “Effect of hybrid nanocatalyst based on carbon nanotubes in diesel fuel on diesel engine performance and pollutantsˮ, Oil Research Journal ,Vol. 25, pp.66-77, 1393. (In Persian)## 11 Su, Y., Zhou, N. “numerical modelling of gas turbine combustor integrated with diffuserˮ, 34th National Heat Transfer Conference, Canada, 2000.## 12 Tavakoli, F., Fakhari, M. “Experimental Investigation and Numerical Simulation of the Internal Ballistic Rocket Engineˮ, Journal of Solid and Fluid Mechanics, Vol. 7, pp. 13-24, 1396. (In Persian)## 13 Darmizade, A., Ansari, M. Tavakoli, “Study of flow pattern in jet engine combustion chamber by 3D numerical simulation of flowˮ, Journal of Solid and Fluid Mechanics, Vol. 2, pp. 35-45, 1391. (In Persian)## 14 Mazzetti, A. “Numerical Modeling and Simulations of Combustion Processes in Hybrid Rocket Enginesˮ, Doctoral Dissertation, Polytechnic of Milan Mathematics Department, 2014.## 15 Asthana, S., Rattan, S. “Comparative studies of Copper oxide with Aluminium oxide nanoparticles in conventional thermal fluids for its enhanced efficiency as coolantˮ, Proceedings of the National Academy of Sciences, India- Section A 83(2)-DOI: 10.1007/s40010-012-0057-1A, 2013.## 16 Wei, L. “Catalyst technology development from macro- micro- down to nano-scaleˮ, China Particuology Journal, Vol. 3, No. 6, pp. 383-394, 2005.## 17 Masomi, H., Abroshan, H. “study of the effect of the angle of incidence on the incidence of stroke in a power plantˮ, journal of fuel and combustion, Vol. 1, 1391. (In Persian)## 18 Zimont, V. L. “ Gas premixed combustion at high turbulence ˮ, ental thermal and fluid science, Vol. 21, No. 1-3, pp. 179-186, 2000.## 19 Miller, J. A., and Bowman, C. T. (1989) “ Mechanism and modeling of nitrogen chemistry in combustion ˮ, Progress in energy and combustion ss Academic Press ˮ, New York, pp 176-189, 2003.## 21 Coppalle, A. and Vervisch, P., “The total emissivities of high-temperature flames ˮ, Combustion and Flame, Vol. 49, No. 1-3, pp..101-108, 1983.## 22 Smith, T.F., Shen, Z.F. and Friedman, J.N., “Evaluation of coefficients for the weighted sum of gray gases model ˮ, 1982.## [23] Denison, M.K. and Webb, B.W., “A spectral line-based weighted-sum-of-gray-gases model for arbitrary RTE solvers ˮ, 1993.## [24] Bashirnejad, K., Moghiman, M., and Mosavi, M. “Effect of Angle and Pattern of Fuel Injection on Soot Production in Liquid Fuels Flameˮ, First Iranian Combustion Conference, Iran, 1384. (In Persian)## [25] Wilcox, D. C. “Turbulence modeling for CFD, DCW industries ˮ, Second edition Vol. 2, pp. 172-180 ,2004.## [26] Richard WJ. “Modeling strategies for unsteady turbulent flows in the lower plenum of the VHTR ˮ, Idaho National Laboratory (United States). Funding organisation: DOE-NE (United States); 2006.## [27] Ge, L. and Sotiropoulos, F., “3D unsteady RANS modeling of complex hydraulic engineering flows. I: Numerical model ˮ, Journal of Hydraulic Engineering, Vol. 131, No. 9, pp.800-808. 2005## | ||
|
آمار تعداد مشاهده مقاله: 247 تعداد دریافت فایل اصل مقاله: 178 |
||