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학술대회자료
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한국유체기계학회 한국유체기계학회 학술대회 논문집 유체기계공업학회 2003 유체기계 연구개발 발표회 논문짐
발행연도
2003.12
수록면
63 - 72 (10page)

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In order to reduce NOx emissions in the 20㎾ class microturbine under development, the low NOx characteristics, as being an application to the lean premixed combustion technology, have been investigated. The study has been conducted at the conditions of high temperature and high pressure. Theair from a compressor with the pressure of 2.5bar, 3.0bar, 3.5bar was supplied to the combustor with the temperature 560K through the air preheat-treatment. The sampling exhaust gas was measured at the immediate exit of the combustor. For the effect of temperature on NO and CO emissions, though NOx were increased, CO was decreased with increasing inlet air temperature. With increasing inlet air pressure, NOx were increased and CO was decreased also. NOx were decreased, but CO was increased with increasing inlet air mass flow rate. The test has been performed on the equivalent ratio of 0.10 to 0.16 in the lean region. NOx were increased with increasing equivalent ratio, but CO was decreased as an influence of flame temperature. CFD work with an appropriate combustion model predicated a complicated swirling flow pattern in the combustor, and also produced a numerical value of NOx and CO emissions which was to be compared with the experimental one. As the results of this study, NOx are expected to be reduced to less than 42ppm at 15% O2 when operated at the design condition of the 20㎾ class microturbine.

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ABSTRACT

1. 서론

2. 이론적 배경

3. 실험장치 및 실험방법

4. 실험결과 및 고찰

5. 결론

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