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Received December 7, 2012
Accepted May 17, 2013
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Experimental study of argon dilution effects on NOx emission in a non-premixed flame in comparison with nitrogen
Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran 1Department of Mechanical Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Korean Journal of Chemical Engineering, August 2013, 30(8), 1588-1593(6), 10.1007/s11814-013-0088-6
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Abstract
The effects of nitrogen and argon dilution on NOX emission of turbulent propane-air non-premixed flame in a furnace are experimentally investigated. Dilution is an effective process in reducing NOX emission, since diluents cause an increase in the mass flow of the fuel, and consequently the temperature in the combustion chamber and NOX emission decreases. We measured NOX emission and temperature for a wide range of dilution and equivalence ratios._x000D_
The results show that nitrogen dilution is more effective than argon dilution in reducing NOX emission. In addition, both dilutions caused the yellow color of the non-premixed flame to turn blue, which indicates more complete combustion and better mixing of fuel and oxidant.
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Wei L, Ying W, Longbao Z, Ling S, J. Appl. Therm. Eng., 27, 2919 (2007)
Kim HK, Kim Y, Lee SM, Ahn KY, Proc. Comb. Ins., 31, 3377 (2007)
Salvador S, Kara Y, Commandre JM, J. Appl. Therm. Eng., 24, 245 (2004)
Cho ES, Chung SH, J. Mech. Sci. Technol., 18, 2303 (2004)
Giles DE, Som S, Aggarwal SK, Fuel, 85(12-13), 1729 (2006)
Kumar P, Mishra DP, Energy Conv. Manag., 49(10), 2698 (2008)
Kobayashi H, Yata S, Ichikawa Y, Ogami Y, Proc. Comb. Ins., 32, 2607 (2009)
Kobayashi H, Hagiwara H, Kaneko H, Ogami Y, Proc. Comb. Ins., 31, 1451 (2007)
Moneib HA, Abdelaal M, Selim MYE, Abdallah OA, Energy Conv. Manag., 50(11), 2699 (2009)
Chun KW, Chung HJ, Chung SH, Choi JH, J. Mech. Sci.Technol., 25, 2943 (2011)
Lee MC, Seo SB, Yoon J, Kim M, Yoon Y, J. Fuel., 102, 431 (2012)
Warnatz J, Mass U, Dibble RW, Combustion, Springer-Verlag, Berlin (2001)
Tang CL, Zheng JJ, Huang ZH, Wang JH, Energy Conv. Manag., 51(2), 288 (2010)
Fendell FE, J. Fluid Mech., 21, 281 (1965)
Hwang CH, Oh CB, Lee CE, J. Therm. Sci., 48, 1423 (2009)
