PollutantMechLect7ME525SP2011

PollutantMechLect7ME525SP2011 - ME 525: Combustion Lecture...

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ME 525: Combustion Lecture 7: Reduced Mechanisms, Pollutant Formation Mechanisms: Nitrogen Chemistry Prof. Robert P. Lucht oom 7, echanical Engineering Building Room 87, Mechanical Engineering Building School of Mechanical Engineering Purdue University West Lafayette, Indiana mail: ucht@purdue.edu Email: Lucht@purdue.edu Phone: 765-494-5623 School of Mechanical Engineering, Purdue University February 1, 2011
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Lecture Topics educed chemical kinetic mechanisms Reduced chemical kinetic mechanisms. hermal O mechanism Thermal NO mechanism. Prompt NO mechanism. Thermal deNOx mechanism. School of Mechanical Engineering, Purdue University
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Reduced Chemical Kinetic Mechanisms eters- ee Reduced Reaction Mechanism for Methane- ir Peters Kee Reduced Reaction Mechanism for Methane Air Diffusion Flames. Trend over last 20 years has been the development of simplified mechanisms based on analysis of "complete" chemical kinetic mechanisms for inclusion in flame codes, esp. turbulent flame codes. Peters and Kee (Combustion and lame Vol 68 17 9 1987) Flame, Vol. 68, 17-29, 1987) developed a numerical code for the Tsuji counterflow diffusion flame and compared numerical and experimental results. School of Mechanical Engineering, Purdue University
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Oxidation of Higher Alkanes (Propane) Peters and Kee start with a "simplified" kinetic mechanism, neglecting reactions that are thought to be nimportant in diffusion flames of 18 reactions and 13 unimportant in diffusion flames, of 18 reactions and 13 reacting species. School of Mechanical Engineering, Purdue University
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Reduced Chemical Kinetic Mechanisms Peters and Kee beginning mechanism: gg 43 2 1 (1) k CH H CH H    2 32 2 3 (2) (3) k CH OH CH H O k CH O CH O H 22 2 4 5 (4) (5) k CH O H HCO H k CH O OH HCO H O 2 6 (6) k HCO H CO H 7 8 (7) (8) k HCO M CO H M k HCO O CO HO School of Mechanical Engineering, Purdue University 9 2 (9) k CO OH CO H 
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Reduced Chemical Kinetic Mechanisms Fast bimolecular reactions involving H and O: 2 10 (10) 1) k HO O O H k H H O H   2 22 11 12 (11) (12) OH k H HH O   2 13 (13) k OH OH O H O wo termolecular reactions: Two termolecular reactions: 2 14 4) k HOM O M  2 15 (14) HO k HM 
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PollutantMechLect7ME525SP2011 - ME 525: Combustion Lecture...

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