Performance of combustor with acoustic augmentation of primary zone air-jet mixing

Authors

  • P.J. Vermeulen Dept. of Mech. Eng., Calgary Univ., Alta., Canada
  • J. Odgers Dept. of Mech. Eng., Calgary Univ., Alta., Canada
  • V. Ramesh Dept. of Mech. Eng., Calgary Univ., Alta., Canada
  • B. Sanders Dept. of Mech. Eng., Calgary Univ., Alta., Canada

Keywords:

acoustic wave amplification, acoustic wave effects, dilution-air mixing processes, tubular combustor, exit plane temperature distribution, entrainment rate, dilution-air jets, acoustic pulsation, acoustically pulsed free-jet mixing, confined crossflow

Abstract

Earlier work established that the dilution-air mixing processes of a small tubular combustor of normal design could be beneficially controlled by acoustic means; specifically a desired exit plane temperature distribution may be achieved. From these results it was inferred that the entrainment rate and mixing of the dilution-air jets was increased by the acoustic pulsation. These encouraging results promoted detailed investigations into acoustically pulsed free-jet mixing, and showed that the entrainment and entrainment coefficient of the jet could be considerably increased, by up to six times. Also, work on acoustically pulsed jet mixing with a confined crossflow, showed that mixing was significantly increased and penetration at least 100% increased. The success of these activities has now resulted in the technique being applied to the air jets of the combustor primary zone, because of the potential for control and improvement in combustor performance

Additional Files

Published

1992-09-01

How to Cite

1.
Vermeulen P, Odgers J, Ramesh V, Sanders B. Performance of combustor with acoustic augmentation of primary zone air-jet mixing. Canadian Acoustics [Internet]. 1992 Sep. 1 [cited 2025 Feb. 16];20(3):31-2. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/724

Issue

Vol. 20 No. 3 (1992)

Section

Proceedings of the Acoustics Week in Canada

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