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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The influence of magnetic field on propane and acetylene diffusion flames have been experimentally investigated using an electromagnetic system. Periodically induced magnetic field having various frequencies and duty ratios was established in square wave form. The maximum intensity and gradient of magnetic field were 1.3 T and 0.27 T/mm, respectively. The width of a propane flame was reduced up to 4.5% and the brightness was enhanced up to 25% when the magnetic field was induced. The soot emission from an acetylene flame was ceased when magnetic field was induced. The alteration of flow field, which is due to the paramagnetic characteristics of oxygen molecule, is most likely to be responsible for the change in flame size and brightness. The effect of magnetic field on diffusion flames, which competes with the gravitational effect, was more apparent from a smaller size flame. The magnetic field effect, therefore, could be important under microgravity conditions. Since the time required to alter the flow field must be finite, the magnetic field effect is likely to be less significant for a periodically oscillating magnetic field at a high frequency or having a small duty ratio.
목차
ABSTRACT
1. 서론
2. 실험장치와 방법
3. 결과 및 고찰
4. 결론
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참고문헌
참고문헌 (14)
참고문헌 신청
1. [학술지(정기간행물)] - Faraday, M. / 1847 / On the diamagnetic condition of flame and gases / London Edinburgh and Dublin Philosophical Magazine and Journal of Science, Series 31 (210) : 401 ~ 421
2. [학술지(정기간행물)] - N. I. Wakayama / 1984 / Magnetic quenching of the emission intensities of HPO and SnH in hydrogen-oxygen flames / Chemical Physics Letter 107 (2) : 207 ~ 211
3. [학술지(정기간행물)] - N.I. Wakayama / 1984 / The external magnetic field effect on the emission intensity of the Na D line in hydrogen-oxygen flames / Chemical Physics Letters 105 (2) : 209 ~ 213
4. [학술지(정기간행물)] - N. I. Sorokin / 1987 / Magnetic field effect on the emission intensity of alkali atoms in hydrogen-oxygen / Chemical Physics Letters 138 (2) : 170 ~ 174
5. [학술지(정기간행물)] - N. I. Wakayama / 1993 / Magnetic promotion of combustion in diffusion flames / Combust. Flame 93 : 207 ~ 214
2. [학술지(정기간행물)] - N. I. Wakayama / 1984 / Magnetic quenching of the emission intensities of HPO and SnH in hydrogen-oxygen flames / Chemical Physics Letter 107 (2) : 207 ~ 211
3. [학술지(정기간행물)] - N.I. Wakayama / 1984 / The external magnetic field effect on the emission intensity of the Na D line in hydrogen-oxygen flames / Chemical Physics Letters 105 (2) : 209 ~ 213
4. [학술지(정기간행물)] - N. I. Sorokin / 1987 / Magnetic field effect on the emission intensity of alkali atoms in hydrogen-oxygen / Chemical Physics Letters 138 (2) : 170 ~ 174
5. [학술지(정기간행물)] - N. I. Wakayama / 1993 / Magnetic promotion of combustion in diffusion flames / Combust. Flame 93 : 207 ~ 214
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