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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2007.1
- 수록면
- 472 - 481 (10page)
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초록· 키워드
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The bottom ash collected from the coal fired power plant was analyzed to use it as an recycled fuel. It contained higher percentage of unburned carbon (approximately around 12% in weight basis) than that in the fly ash. The porosity and N2 BET measurement show that the bottom ash has relatively small porosity and surface area compared with the parent coal. The TGA test revealed that the combustion reactivity of mixture of coal and bottom ash is a little bit lower than that of parent coal. About 4% (wt. basis) of bottom ash was blended with the original raw coal, and used for ash reburning combustion tests at 800 MW coal fired boiler. The plant tests for the reburning of bottom ash showed that there were no recognizable changes in boiler operation and combustion performance. The conversion of bottom ash to the clean ash turned out to be approximately 26 to 30%, and about 14 to 16% was estimated to be transported to the ash pond. It was proved that the bottom ash reburning process has excellent environmental and economic benefits by ways of the increased sales of clean ash and the decrease in disposal of discarded ash to the ash pond.
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