استفاده از محفظة احتراق با گردابة به‌دام‌افتاده به‌عنوان یک فناوری نو در توربین‌های گازی

نوع مقاله : علمی- ترویجی

نویسنده

عضو هیات علمی پژوهشگاه هوافضا

چکیده

استفاده از محفظة احتراق با گردابة به‌دام‌افتاده به‌عنوان یک فناوری جدید در توربین‌های گازی مورد بررسی قرار گرفته است. نتایج این تحقیق نشان می‌دهد، انواع مختلف محفظة احتراق با گردابة به‌دام‌افتاده (محصولات مراکز AFRL و GE) دارای قابلیت عالی LBO و عملکرد مؤثر در محدوده وسیع دینامیکی هستند. ضمناً، در بعضی از انواع TVC، میزان آلاینده NOx  به 40 تا 60 درصد استاندارهای موجود کاهش می‌یابد و میزان راندمان احتراق به 99 درصد رسیده است. همچنین، فناوری محفظة احتراق با گردابة به‌دام‌افتاده، شش مرحله از سطوح آمادگی فناوری (مراحل دانش علمی و توسعه محصول) را گذرانده است، ولی هیچ نمونة موتور توربین گازی تجاری که در آن از فناوری TVC استفاده شده باشد، گزارش نشده است.

کلیدواژه‌ها


[1]    Agarwal, K. K., Krishna, S. and Ravikrishna, R., "Mixing enhancement in a compact trapped vortex combustor," Combustion Science and Technology, Vol. 185, 2013, pp. 363-378.
[2]    Sawyer, R. F., "Science based policy for addressing energy and environmentalproblems," Proceedings of the Combustion Institute, Vol. 32, 2009 , pp. 45-56.
[3]    CAEP seventh meeting : Report of the Committee IndependentExperts on the 2006 NOx review and the establishment ofmedium and long termtechnology goals for NOx, Feb 2007. [3]David L. Daggett : Water Misting and Injection of CommercialAircraft Engines to Reduce irport NOx, NASA/CR-2004-212957.
[4]    Wulff, A. and Hourmouziadis, J., "Technology review of aeroengine pollutant emissions," Aerospace science and technology, Vol. 1, 1997, pp. 557-572.
[5]    Candel, S.,  "Combustion dynamics and control: Progress and challenges," Proceedings of the combustion institute, Vol. 29, 2002, pp. 1-28.
[6]    Gokulakrishnan, P.,  and et al., "A novel low nox lean, premixed, and prevaporized combustion system for liquid fuels," Journal of engineering for gas turbines and power, Vol. 130, 2008, pp. 051501.
[7]    Lieuwen, T., McDonell, V., Petersen, E., and Santavicca, D., "Fuel flexibility influences on premixed combustor blowout, flashback, autoignition, and stability," Journal of engineering for gas turbines and power, Vol. 130, 2008, pp. 011506.
[8]    Hsu, K., Goss, L., Trump, D. and Roquemore, W., "Performance of a trapped-vortex combustor," AIAA paper, Vol. 810, 1995.
[9]    K.-Y. Hsu, L. Goss, and W. Roquemore, "Characteristics of a trapped-vortex combustor," Journal of Propulsionand Power, Vol. 14, 1998, pp. 57-65.
[10]  Katta, V. R.  and Roquemore, W., "Study on trapped-vortex combustor-effect of injection on flow dynamics," Journal of propulsion and power, Vol. 14, 1998, pp. 273-281.
[11]  Katta, V. R.  and Roquemore, W., "Numerical studies on trapped-vortex combustor," AIAA paper, Vol. 2660, 1996.
[12]  Mongeau, L., Kook, H. and Franchek, M., "Active control of flow-induced cavity resonance," AIAA/CEAS Paper, 98-2349, 1998.
[13]  Gharib, M. and Roshko, A., "The effect of flow oscillations on cavity drag," Journal of Fluid Mechanics, Vol. 177, 1987, pp. 501-530.
[14]  Koenig, K. and Roshko, A., "An experimental study of geometrical effects on the drag and flow field of two bluff bodies separated by a gap," Journal of fluid mechanics, Vol. 156, 1985, pp. 167-204.
[15]  Little, B. and Whipkey, R., "Locked vortex afterbodies," Journal of Aircraft, Vol. 16, 1979, pp. 296-302.
[16]  Xavier, P., "Investigation of flame PhD diss., INSA de Rouen, 2014.
[17]  Burrus, D., Johnson, A., Roquemore, W., and Shouse, D., "Performance assessment of a prototype trapped vortex combustor concept for gas turbine application," in ASME Turbo Expo 2001: Power for Land, Sea, and Air, 2001, pp. V002T02A053-V002T02A053.
[18]  Lefebvre, A. H., Gas turbine combustion, CRC press,Hoboken, NJ, 1998.
[19]  Mair, W.  "The effect of a rear-mounted disc on the drag of a blunt-based body of revolution(Drag of body of revolution with blunt base substantially reduced by mounting disk behind body with smaller diameter than body)," Aeronautical Quarterly, Vol. 16, 1965, pp. 350-360.
[20]  Roquemore, W. and et al., "Vortex combustor concept for gas turbine engines," in AIAA, Aerospace Sciences Meeting and Exhibit, 39 th, Reno, NV, 2001.
[21]  Hendricks, R. C., and et al., "Experimental and computational study of trapped vortex combustor sector rig with tri-pass diffuser," International Journal of Rotating Machinery, Vol.7, 2001, pp.375-385.
[22]  Bucher, J. and et al., "The development of a lean-premixed trapped vortex combustor," ASME, Paper No. GT2003-38236, 2003.
[23]https://www.nasa.gov/directorates/heo/scan/engineering/technology/txt_accordion1.html.