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자료유형
학술저널
저자정보
저널정보
대한기계학회 대한기계학회 논문집 B권 대한기계학회논문집 B권 제32권 제8호
발행연도
2008.8
수록면
604 - 611 (8page)

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Detailed analysis of NO formation routes and its contributions with strain rate in hydrogen/air flames were numerically investigated. LiG detailed reaction mechanism has been used for calculation, which is compared with experimental data in literature. It shows good agreement with experiment for both temperature and NO mole fraction. Three routes have been found important for NO formation in hydrogen flames. These are the Thermal route, NNH route and N₂O route. Strain rate were varied to discuss the EI<SUB>NO</SUB> reduction trend in hydrogen nonpremixed flames, which are analyzed by each NO formation routes. As a result , as the strain rate increase, EI<SUB>NO</SUB> decrease sharply until strain rate 100s<SUP>-1</SUP> and decrease slowly until strain rate 310s<SUP>-1</SUP> again, after that EI<SUB>NO</SUB> keeps nearly constant. It can be identified that EINO trend with the strain rate is well explained by a combination of variation of production rate of above Thermal, NNH and N₂O route. Also result of Thermal-Mech. that includes only thermal NO reaction is compared with those of Full-Mech. . As a result, It can be identified that there was difference between the two results of calculation. It is attributed to result that Thermal-mech did not consider contributions of NNH and N₂O route. From these result, we can conclude that NOx emission characteristics of hydrogen nonpremixed flames should consider contributions of above three routes simultaneously.

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Abstract
1. 서론
2. 수치해석 방법
3. 결과 및 검토
4. 결론
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