Volume 32 Issue 3
Mar.  2017
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Influence of fuel stage under idle condition on combustion efficiency for high-temperature rise combustor[J]. Journal of Aerospace Power, 2017, 32(3): 577-583. doi: 10.13224/j.cnki.jasp.2017.03.008
Citation: Influence of fuel stage under idle condition on combustion efficiency for high-temperature rise combustor[J]. Journal of Aerospace Power, 2017, 32(3): 577-583. doi: 10.13224/j.cnki.jasp.2017.03.008

Influence of fuel stage under idle condition on combustion efficiency for high-temperature rise combustor

doi: 10.13224/j.cnki.jasp.2017.03.008
  • Received Date: 2015-06-23
  • Publish Date: 2017-03-28
  • The combustion efficiency test was done on the single dome test piece of twin annular multi-point direct injection mixing(TAMDIM) high-temperature rise combustor, the idle combustion efficiency of two stages-fueled together mode and the pilot-fueled only mode with two different throat spacing sizes were compared, and the influence of different main and pilot equivalents (the pilot fuel ratio of 40%, 56%, 65%, 100%) and throat spacing size on the combustion efficiency were analyzed. Test results show that, the throat spacing size has a great influence on the combustion efficiency when taking the two stages-fueled together mode, compared with the pilot-fueled only mode, better combustion efficiency has been obtained when the spacing of throat is 19.3 mm and the pilot fuel ratio is within the range of 40%~56%.Validated test has been done on the sector test piece finally, ulteriorly verifying the feasibility of fuel stage under idle condition in the TAMDIM high-temperature rise combustor.

     

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