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논문 기본 정보

자료유형
학술저널
저자정보
박석균 (한국생산기술연구원) 목진성 (한국생산기술연구원) 정진무 (전북대학교) 오종현 (전북대학교) 최석천 (한국생산기술연구원)
저널정보
한국동력기계공학회 동력시스템공학회지 한국동력기계공학회지 제22권 제1호
발행연도
2018.2
수록면
79 - 86 (8page)

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Many countries have conducted extensive studies for biomass co-firing to enhance the durability of reactor on high-temperature corrosion. However, due to the complicated mechanisms of biomass co-firing, there have been limitations in accurately determining the current state of corrosion and predicting the potential risk of corrosion of power plant. In order to solve this issue, this study introduced Lab-scale corrosion system to analyze the corrosion characteristics of the A213 T91 material under the biomass co-firing conditions. The corrosion status of the samples was characterized using SEM/EDS analysis and mass loss measurement according to various biomass co-firing conditions such as corrosion temperature, SO₂ concentration, and corrosion time. As a result, the corrosion severity of A213 T91 material was gradually increased with the increase of SO₂ concentration in the reactor. When SO₂ concentration was changed from 0 ppm to 500 ppm, both corrosion severity and oxide layer thickness were proportionally increased by 15% and 130%, respectively. The minimum corrosion was observed when the corrosion temperature was 450℃. As the temperature was increased up to 650℃, the faster corrosion behavior of A213 T91 was observed. A213 T91 was observed to be more severely corroded by the effect of chlorine, resulting in faster corrosion rate and thicker oxide layer. Interestingly, corrosion resistance of A213 T91 tended to gradually decrease rather than increases as the oxide layer was formed. The results of this study is expected to provide necessary research data on boiler corrosion in biomass co-firing power plants.

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Abstract
1. 서론
2. 메커니즘
3. 실험 방법
4. 실험 결과 및 고찰
4. 결론
References

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