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비정상연소의 특성과 연소진동 평가Evaluation on Characteristics of Unsteady Combustion and Combustion Oscillation
- Other Titles
- Evaluation on Characteristics of Unsteady Combustion and Combustion Oscillation
- Issue Date
- 2011
- Publisher
- 한국기계가공학회
- Keywords
- Unsteady Combustion(비정상연소); Combustion Oscillationl(연소진동); Forced Pulsating Mixture Supply(강제변동공급); Premixed Combustion(예혼합연소); Rayleigh's Criterion(레일리판정기준)
- Citation
- 한국기계가공학회지, v.10, no.5, pp 125 - 130
- Pages
- 6
- Indexed
- KCI
- Journal Title
- 한국기계가공학회지
- Volume
- 10
- Number
- 5
- Start Page
- 125
- End Page
- 130
- ISSN
- 1598-6721
2288-0771
- Abstract
- The characteristics of unsteady combustion were experimentally investigated using confined premixed flames stabilized by a rearward-facing step. The unsteady combustion used in this experiment plays an important role in controlling self-excited combustion oscillations and it has usually desirable performance such as high load combustion and low pollutant emission. It is known that combustion oscillation is occurred if Rayleigh's criterion is satisfied. The pressure fluctuation and OH-emission fluctuation were measured using pressure transducer and OH optical fiber respectively and then cross-corelation and phase difference were calculated to apply Rayleigh's criterion.
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