FlameSpeedQuenchIgnitionLect18ME525SP2011

FlameSpeedQuenchIgnitionLect18ME525SP2011 - ME 525:...

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School of Mechanical Engineering, Purdue University ME 525: Combustion Lectures 18: Flame Speeds, Quenching, and Ignition of Laminar Flames Prof. Robert P. Lucht Room 87, Mechanical Engineering Building School of Mechanical Engineering Purdue University West Lafayette, Indiana Email: Lucht@purdue.edu Phone: 765-494-5623 March 10, 2011
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School of Mechanical Engineering, Purdue University Lecture Topics • Flame speeds • Quenching of a laminar flame. • Spark ignition of a laminar flame.
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School of Mechanical Engineering, Purdue University Laminar Flame Speeds From the Spalding analysis:  1/2 21 where thermal diffusivity average volumetric chemical reaction rate F L uu up F m m S k c m         2 2 1 u L F S m   The laminar flame speed increases with increasing thermal diffusivity and increasing volumetric chemical reaction rate.
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School of Mechanical Engineering, Purdue University Laminar Flame Speeds Laminar flame speeds for different fuels Glassman, Combustion, 2 nd Edition S L (cm/s)
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School of Mechanical Engineering, Purdue University Laminar Flame Speeds Can increase volumetric fuel reaction rate by increasing O 2 content of air. Glassman, Combustion, 2 nd Edition
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School of Mechanical Engineering, Purdue University Laminar Flame Speeds
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This note was uploaded on 12/27/2011 for the course ME 525 taught by Professor Lucth during the Fall '11 term at Purdue University-West Lafayette.

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FlameSpeedQuenchIgnitionLect18ME525SP2011 - ME 525:...

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