지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Numerical study was conducted to clarify effects of added CO₂ for the downstream interaction between H₂-air and CO-air premixed flames in counterflow configuration. The reaction mechanism adopted was Davis model which had been known to be well in agreement with reliable experimental data. The results showed that both lean and rich flammable limits were reduced. The most discernible difference between the two with and without having CO₂ addition into H₂-air and CO-air premixtures was two flammable islands for the former and one island for the latter at high strain flame conditions. Even a small amount of H₂, in which H₂-air premixed flame cannot be sustained by itself, participates in CO oxidation, thereby altering the CO-oxidation reaction path from the main reaction route CO + O₂ → CO₂ + O with a very long chemical time in CO-air flame to the (H, O, OH)-related reaction routes including CO + OH → CO₂ + H with relatively short chemical times. This intrinsic nature alters flame stability maps appreciably. The results also showed that chemical effects of added CO₂ suppressed flame stabilization. Particularly this phenomenon was appreciable at flame conditions which lean and rich extinction boundary was merged. The detailed discussion of chemical effects of added CO₂ was addressed to the present downstream interaction.
목차
ABSTRACT
1. 서론
2. 수치해석 방법
3. 결과 및 논의
4. 결론
참고문헌
참고문헌 (27)
참고문헌 신청
1. [학술지(정기간행물)] - Fotache CG / 2000 / Ignition of CO/H2/N2 versus heated air in counterflow: experimental and modeling results / Combust Flame 120 : 417 ~ 426
2. [학술지(정기간행물)] - Vagelopoupos CM / 1994 / Laminar flame speeds and extinction strain rates of mixtures of carbon monoxide with hydrogen, methane, and air / Proc Combust Inst 25 : 1317 ~ 1323
3. [학술지(정기간행물)] - Mclean IC / 1994 / The use of carbon monoxide/hydrogen burning velocities to examine the rate of the CO+OH reaction / Proc Combust Inst 25 : 749 ~ 757
4. [학술지(정기간행물)] - Brown MJ / 1996 / Markstein lengths of CO/H2/air flames using expanding spherical flames / Proc Combust Inst 26 : 875 ~ 881
5. [학술지(정기간행물)] - Natarajan J / 2007 / Laminar flame speeds of H2/CO mixture effects of CO2 dilution, preheat temperature, and pressure / Combust Flame 151 : 104 ~ 109
2. [학술지(정기간행물)] - Vagelopoupos CM / 1994 / Laminar flame speeds and extinction strain rates of mixtures of carbon monoxide with hydrogen, methane, and air / Proc Combust Inst 25 : 1317 ~ 1323
3. [학술지(정기간행물)] - Mclean IC / 1994 / The use of carbon monoxide/hydrogen burning velocities to examine the rate of the CO+OH reaction / Proc Combust Inst 25 : 749 ~ 757
4. [학술지(정기간행물)] - Brown MJ / 1996 / Markstein lengths of CO/H2/air flames using expanding spherical flames / Proc Combust Inst 26 : 875 ~ 881
5. [학술지(정기간행물)] - Natarajan J / 2007 / Laminar flame speeds of H2/CO mixture effects of CO2 dilution, preheat temperature, and pressure / Combust Flame 151 : 104 ~ 109
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UCI(KEPA) : I410-ECN-0101-2015-430-001233608