Xudong LANG, Wei LI, Jinxin DAI, et al. Test on effect of swallowing water on component performance of reverse⁃flow combustor[J]. Journal of Aerospace Power, 2022, 37(7): 1345-1351.
DOI:
Xudong LANG, Wei LI, Jinxin DAI, et al. Test on effect of swallowing water on component performance of reverse⁃flow combustor[J]. Journal of Aerospace Power, 2022, 37(7): 1345-1351.DOI: 10.13224/j.cnki.jasp.20210264.
Test on effect of swallowing water on component performance of reverse⁃flow combustor
The test of a certain annular reverse⁃flow combustor performance change after swallowing water was carried out,the combustor performance was measured,including the inlet temperature,combustion efficiency,equivalent temperature rise,overall temperature distribution factor (OTDF) and radial temperature distribution factor (RTDF),etc.The results showed that:when the mass of swallowing water ranged from zero to 5%,with the increase of the mass of swallowing water in all flight states,the inlet temperature and total pressure loss decreased,equivalent temperature rise decreased and ground idle combustion efficiency decreased from 99.3% to 97.2%.overall temperature distribution factor and radial temperature distribution factor increased,of which overall temperature distribution factor increased from 0.23 to 0.28 in design state.The lean blowout fuel and air ratio of ground idle state increased from 0.004 5 to 0.006 5 and the lean blowout boundary became narrower.
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