تحلیل تاثیر افزودن نانوذرات آلومینا بر تبخیر قطرات سوخت دیزل در محفظه احتراق مدل توربین گاز

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه علم و صنعت ایران

2 دانشکاه علم و صنعت

3 گروه مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه الزهرا، تهران، ایران

چکیده

در مقاله حاضر، تاثیر افزودن نانوذرات آلومینا بر تبخیر قطرات سوخت دیزل مورد تحلیل عددی قرار گرفته است. نانوسوختحاصلازافزودن 5/0 و 1 درصدحجمی ذرات آلومینا به سوخت پایه دیزلبه‌صورت تکفازدرنظرگرفتهشدهاست. جریان دو فاز متشکل از قطرات سوخت و هوای ورودی با نگرش اویلر-لاگرانژ مدل­سازی شده است. هم­چنین، برای تحلیل مشخصه­های جریان واکنشیآشفتهرهیافت متوسط‌گیری رینولدز ناویر استوکس به همراه مدل انتقال حرارت تشعشعی جهات مجزا و مدل احتراقی فلیملت پایا به­کارگرفتهشدهاست. بهمنظوراطمینان از  صحت نتایج مقایسه­هایی با نتایج تجربی انجام شده است. نتایج حاکی از آن است که با افزودن نانوذرات آلومینا، ظرفیت گرمایی و طول عمر قطرات سوخت افزایش می­یابد. هم چنین، عمق نفوذ قطرات در حضور نانوذرات بیشتر شده و قطرات در فواصل دورتری از ورودی تبخیر می­شوند. ایننکته بیان‌گر کاهش نرخ تبخیر قطرات سوخت دیزل در حضور نانوذرات آلومینا است.

کلیدواژه‌ها

عنوان مقاله [English]

Analysis of Influence of Alumina Nanoparticles Addition on Diesel Fuel Droplets Evaporation in A Model Gas Turbine Combustion Chamber

نویسندگان [English]

  • farzad bazdidi tehrani 1
  • ebrahim sharifi sade 2
  • Mohammad Sadegh Abedinejad 3
1 Department of Mechanical Engineering, Faculty of Engineering, Alzahra University
2 School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
3 Department of Mechanical Engineering, Faculty of Engineering & Technology, Alzahra University, Tehran, Iran
چکیده [English]

In the present article, the influence of alumina nanoparticles addition on the evaporation of diesel fuel droplets in the combustion chamber of the gas turbine model has been numerically investigated. The nano-fuel, resulting from adding the alumina nanoparticles in volume fractions of 0.5 and 1 percent, has been considered as a single-phase fluid. To model the two-phase flow, which is consisted of fuel droplets and inlet air, the Eulerian-Lagrangian approach is applied. In order to investigate the characteristics of the reactive spray flow, Reynolds Averaged Navier-Stokes turbulence approach, discrete ordinates radiation heat transfer model, and steady diffusion flamelet combustion model have been employed. Comparisons between the present results and the existing experimental data have been made to evaluate the obtained accuracy. The results show that, with the addition of alumina nanoparticles, the heat capacity and lifetime of fuel droplets are increased. Also, in the presence of nanoparticles, the penetration depth of the droplets increases, and droplets evaporate in further distances from the inlet boundary. This implies a reduction in the evaporation rate of fuel droplets in the presence of alumina nanoparticles.

کلیدواژه‌ها [English]

  • Model Combustion Chamber
  • Two-Phase Flow
  • Alumina Nanoparticles
  • Droplet Evaporation

مراجع

  1. Prasher, R., Bhattacharya, P., and Phelan, P. E. “Thermal Conductivity of Nanoscale Colloidal Solutions (Nanofluids)”, Phys. Rev. Lett., Vol. 94, no. 2, 2005.##
  2. Yetter, R. A., Risha, G. A., and Son, S. F. “Metal Particle Combustion and Nanotechnology”, P. Combust. Inst., Vol. 32, no. 2, pp. 1819-1838, 2009.##
  3. Esfe, M. H., Saedodin, S., Biglari, M., and Rostamian, H., “Experimental Investigation of Thermal Conductivity of CNTs-Al2O3/water: a Statistical Approach.” Int. Commun. Heat Mass Transf., Vol. 69, pp. 29-33, 2015.##
  4. Esfe, M. H., Arani, A. A. A., and Badi, R. S., Rejvani, “ANN Modeling, Cost Performance and Sensitivity Analyzing of Thermal Conductivity of DWCNT–SiO 2/EG Hybrid Nanofluid for Higher Heat Transfer”, J. Therm. Anal. Calorim., Vol. 131, no. 3, pp. 2381-2393, 2018.##
  5. Esfe, M. H. and Hajmohammad, M. H., “Thermal Conductivity and Viscosity Optimization of Nanodiamond-Co3O4/EG (40: 60) Aqueous Nanofluid Using NSGA-II Coupled with RSM”, J. Mol. Liq., Vol. 238, pp. 545-552, 2017.##
  6. Sonawane, S., Patankar, K., Fogla, A., Puranik, B., Bhandarkar, U., and Kumar, S.S. “An Experimental Investigation of Thermo-physical Properties and Heat Transfer Performance of Al2O3-Aviation Turbine Fuel Nanofluids”, Appl. Therm. Eng., Vol. 31, no 14-15, pp. 2841-2849, 2011.##
  7. Shariatmadar, F.S. and Pakdehi, S.G. “Synthesis and Characterization of Aviation Turbine Kerosene Nanofuel Containing Boron Nanoparticles”, Appl. Therm. Eng., Vol. 112, pp. 1195-1204, 2017.##
  8. Tanvir, S. and Qiao, L. “Surface Tension of Nanofluid-type Fuels Containing Suspended Nanomaterials”, Nanoscale Res. Lett., Vol. 7, no. 1, pp. 1-10, 2012.##
  9. Ghamari, M. and Ratner, A. “Combustion Characteristics of Colloidal Droplets of Jet Fuel and Carbon Based Nanoparticles”, Fuel, Vol. 288, pp. 182-189, Fuel, 2017.##
  10. Javed, I., Baek, S.W., Waheed, K., Ali, G., and Cho, S.O. “Evaporation Characteristics of Kerosene Droplets with Dilute Concentrations of Ligand-Protected Aluminum Nanoparticles at Elevated Temperatures”, Combust. Flame, Vol. 160, no. 12, pp. 2955-2963, 2013.##
  11. Javed, I., Baek, S.W., and Waheed, K., “Effects of Dense Concentrations of Aluminum Nanoparticles on the Evaporation Behavior of Kerosene Droplet at Elevated Temperatures: The Phenomenon of Microexplosion”, Exp. Therm. Fluid Sci., Vol. 56, pp. 33-44, 2014.##
  12. Gan, Y. and Qiao, L. “Evaporation Characteristics of Fuel Droplets with Addition of Nanoparticles under Natural and Forced Convection”, Int. J. Heat Mass Transf., Vol. 54, no. 23-24, pp. 4913-4922, 2011.##
  13. Mehta, R.N., Chakraborty, M., and Parikh, P.A. “Nanofuels: Combustion, Engine Performance and Emissions”, Fuel, Vol. 120, pp. 91-97, 2014.##
  14. Javed, I., Baek, S.W., and Waheed, K.  “Evaporation Characteristics of Heptane Droplets with the Addition of Aluminum Nanoparticles at Elevated Temperatures”, Combust. Flame, Vol. 160, Nno. 1, pp. 170-182, 2013.##
  15. Wang, J., Qiao, X., Ju, D., Wang, L., and Sun, C. “Experimental Study on the Evaporation and Micro-explosion Characteristics of Nanofuel Droplet at Dilute Concentrations”, Energy, Vol. 183, pp. 149-159, 2019.##
  16. Mehregan, M. and Moghiman, M.  “Effect of Aluminum Nanoparticles on Combustion Characteristics and Pollutants Emission of Liquid Fuels–A Numerical Study”, Fuel, Vol. 119, pp. 57-61, 2014.##
  17. Mehregan, M. and Moghiman, M.  “Propose a Correlation to Approximate Nanofluids’ Enthalpy of Vaporization—a Numerical Study”, International Journal of Materials, Mechanics and Manufacturing, Vol. 2, no. 1, 2014.##
  18. Bauer, H., Eigenmann, L., Scherrer, B., and Wittig, S. “Local Measurements in a Three Dimensional Jet-stabilized Model Combustor”, ASME, 1995.##
  19. Bazdidi-Tehrani, F. and Zeinivand, H. “Presumed PDF Modeling of Reactive two-phase Flow in a Three Dimensional Jet-stabilized Model Combustor”, Energ. Convers. Manage., Vol. 51, no. 1, pp. 225-234, 2010.##
  20. Berlemont, A., Grancher, M., and Gouesbet, G. “Heat and Mass Transfer Coupling between Vaporizing Droplets and Turbulence using a Lagrangian Approach”, Int. J. Heat Mass transf., Vol. 38, pp.3023-3034, 1995.##
  21. Pitch, H. and Peters, N. “A Consistent Flamelet Formulation for Non-premixed Combustion Considering Differential Diffusion Effects”, Combust. Flame, Vol. 114, no. 1, pp. 26-40, 1998.##
  22. Moss, J., Perera, S., Stewart, C., and Makida, M. “Radiation Heat Transfer in Gas Turbine Combustors”, In Proc. 16th (Int’l) Symp on Air Breathing Engines, Cleveland, OH, 2003.##
  23. Bazdidi-tehrani, F. and Abedinejad, M.S. “Influence of Incoming Air Conditions on Fuel Spray Evaporation in an Evaporating Chamber”, Chem. Eng. Sci., Vol. 189, pp. 233-244., 2019.##
  24. Bazdidi-tehrani, F., Abedinejad, M.S., and Mohammadi, M., “Analysis of Relationship between Entropy Generation and Soot Formation in Turbulent Kerosene/Air Jet Diffusion Flames”, Energy fuel, Vol. 33, no. 9, pp.9184-9195, 2019.##

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سابقه مقاله

  • تاریخ دریافت: 21 تیر 1399
  • تاریخ بازنگری: 13 آبان 1400
  • تاریخ پذیرش: 08 اردیبهشت 1400
  • تاریخ انتشار: 08 آذر 1400

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