DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김현준 | ko |
dc.contributor.author | 홍정구 | ko |
dc.contributor.author | 신현동 | ko |
dc.date.accessioned | 2009-12-21T07:08:10Z | - |
dc.date.available | 2009-12-21T07:08:10Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2007-03 | - |
dc.identifier.citation | 대한기계학회논문집 B, v.31, no.3, pp.292 - 299 | - |
dc.identifier.issn | 1226-4881 | - |
dc.identifier.uri | http://hdl.handle.net/10203/15451 | - |
dc.description.abstract | In gas turbine technology, the flame stability is inherently greater in conventional diffusion type combustion over a wider range fuel to oxidizer ratio. However, premixed type combustion which has narrow flame stability region, is widely used due to environmental reason. It has been observed in experiments that combustion instability of low frequency (${\sim}10Hz$) results from the modulation of equivalence ratio at fuel injection hole when a pressure fluctuation propagates upwards along the channel of the burner under an unchoked fuel flow condition. In this study, a commercial program was used to determine how the fuel flow rate changed with respect to the pressure, velocity of the fuel flow and the mass fraction in a choked and an unchoked condition. The calculation focuses on the upstream of the dump plane to know how the forced pressure with the fuel injection conditions affects the modulation of the equivalence ratio. Therefore, it is found that pressure fluctuation leads to oscillation of mass flow rate and then results in equivalence ratio modulation under the unchoked fuel flow condition. | - |
dc.description.sponsorship | 연소기술연구센터(CERC), BK21 | en |
dc.language | Korean | - |
dc.language.iso | ko | en |
dc.publisher | 대한기계학회 | - |
dc.title | 압력변동이 연료 분사구에서의 당량비 변동에 미치는 영향에 관한 수치 해석 | - |
dc.title.alternative | Numerical Simulation of the Effect of Pressure Fluctuation on the Modulation of Equivalence Ratio at the Fuel Injection Hole | - |
dc.type | Article | - |
dc.subject.alternative | Pressure Fluctuation | en |
dc.subject.alternative | Equivalence Ratio Fluctuation | en |
dc.subject.alternative | Numerical Simulation | en |
dc.type.rims | ART | - |
dc.citation.volume | 31 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 292 | - |
dc.citation.endingpage | 299 | - |
dc.citation.publicationname | 대한기계학회논문집 B | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.identifier.kciid | ART001040461 | - |
dc.contributor.localauthor | 신현동 | - |
dc.contributor.nonIdAuthor | 김현준 | - |
dc.contributor.nonIdAuthor | 홍정구 | - |
dc.subject.keywordAuthor | Key Words : Pressure Fluctuation(압력 변동) | - |
dc.subject.keywordAuthor | Equivalence Ratio Fluctuation(당량비 변동) | - |
dc.subject.keywordAuthor | Numerical Simulation(수치해석) | - |
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