| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 |
13권 2호, p.2174 |
| 발표분야 |
유동층 |
| 제목 |
Water Wall Wastage in a Commercial Circulating Fluidized Bed Combustor with Two Gas Exits |
| 초록 |
The tube thickness profiles of water walls was measured in a large commercial circulating fluidized bed furnace (200 tonnes steam/h, 4.97 m x 9.90 m x 28.98 m high) with two gas exits by means of an ultrasonic thickness gauge in order to investigate tube wastage patterns. Wastage of all water walls, including wing walls, was significant in the transition region just above the refractory lining around the circumference of the combustor, especially at the center of the sidewalls and both sides of the front and rear walls. The lateral wear profile seemed to be influenced mainly by secondary flow, stronger toward the center than in the corners, and somewhat by the wing walls and gas exits. Wastage of some tubes was also found to be appreciable around the gas exit. The lateral profiles of tube thickness at the gas exit level and other findings indicate asymmetric flows between the two exits. |
| 저자 |
김태우1, 최정후1, 선도원2, 김수섭3, 김상돈4, John R. Grace5
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| 소속 |
1건국대, 2에너지기술(연), 3SK Chemicals, 4KAIST, 5Univ. of British Columbia |
| 키워드 |
Tube erosion; Tube wastage; Tube wear; Circulating fluidized bed; Two gas exit
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| E-Mail |
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| 원문파일 |
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