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Pulse Combustion in a Traveling Wave Thermoacoustic Engine

[+] Author Affiliations
Nathan T. Weiland, Ben T. Zinn

Georgia Institute of Technology

Paper No. IMECE2004-61579, pp. 73-80; 8 pages
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Noise Control and Acoustics
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Noise Control and Acoustics Division
  • ISBN: 0-7918-4715-2 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME


This work describes the use of pulse combustion for increasing the acoustic power output of a thermoacoustic engine. Such engines directly convert thermal energy into acoustic energy, which is typically used to drive a thermoacoustic refrigeration process that can achieve cryogenic temperatures without the use of moving parts. After a brief overview of thermoacoustics, the design of the thermoacoustic engine is discussed, and a perturbation analysis of the thermoacoustic energy fluxes and pulse combustion process is presented to quantify the extent to which pulse combustion has the potential to add to the engine’s acoustic power output. Guided by this analysis and the requirements of the engine design, various active and passive combustion control strategies for the reactant injection configuration and combustion chamber design are discussed.

Copyright © 2004 by ASME



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