메탄/순산소 예혼합 화염의 선회특성

다국어 초록 (Multilingual Abstract)

The present study has experimentally investigated the effects of CO₂ diluted oxygen on the structure of swirl-stabilized flame in a lab-scale combustor. The methane fuel and oxidant mixture gas (CO₂ and O₂) were mixed in a pre-mixer and introduced to the combustor through different degrees of swirl vanes. The flame characteristics were examined for various amount of carbon dioxide addition to the methane fuel and various swirl strengths. The effects of carbon dioxide addition and swirl intensity on the combustion characteristics of pre-mixed methane flames were examined using chemiluminescence techniques to provide information about flow field. The results show that the hot combustion zone increases at the upstream reaction zone because of an increase in the recirculation flow for an increase in swirl intensity. The hot combustion zone is also increased at the downstream zone by recirculation flow because of an increase in swirl intensity which results in higher centrifugal force. The OH and CH radical intensities of reaction zone decrease with carbon dioxide addition because the carbon dioxide plays a role of diluted gas in the reaction zone.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험장치 및 실험조건
• 3. 실험결과
• 4. 결론
• 후기
• 참고문헌

참고문헌 (Reference)

1 김한석, "수소 첨가가 예혼합 메탄 화염의 NOx 생성에 미치는 영향" 한국수소및신에너지학회 18 (18): 75-84, 2007

2 "http://www.ipcc.ch"

3 "http://www.cdrs.re.kr"

4 "http://www. ieagreen.org.uk"

5 Claypole, T.C., "The Effect of Swirl Burner Aerodynamics on NOx Formation" 81-89, 1981

6 Gupta, A. K., "Swirl Flows" Abacus 1984

7 Kim, H. S., "Study on the Combustion Characteristics of a Lean Premixed Combustor" 9 : 25-31, 2004

8 Baukal, C.E., "Oxygen-Enhanced Combustion" CRCPress 1998

9 Buhre, B.J.P., "Oxy-fuel Combustion Technology for Coal-fired Power Generation" 31 : 283-307, 2005

10 Kim, H. S., "Formation of Nitric Oxide in a Staged Gas Flame" 166 : 41-66, 2001