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Received January 18, 2005
Accepted April 15, 2005
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상용 순환 유동층 연소로 수관벽 전열관 두께 지도
A Tube Thickness Map of Water Wall in a Commercial Circulating Fluidized Bed Combustor
건국대학교 화학공학과, 차세대환경기술센타, 143-701 서울시 광진구 화양동 1 1한국에너지기술연구원, 305-343 대전시 유성구 장동 71-2 2수원대학교 환경공학과, 445-743 경기도 화성시 봉담읍 와우리 산2-2 3SKC(주), 680-160 울산시 남구 황성동 600 4한국과학기술원 생명화학공학과, 305-701 대전시 유성구 구성동 373-1
Department of Chemical Engineering, Innovative Environmental Technology Center, Konkuk University, 1, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea 1Korea Institute of Energy Research, 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea 2Department of Environmental Engineering, Suwon University, San 2-2, Wau-ri, Bongdam-eup, Hwaseong, Gyeonggi-do 445-743, Korea 3SK Chemical Co., 600, Hwangsung-dong, Nam-gu, Ulsan 680-160, Korea 4Department of Molecular Biology and Chemical Engineering, KAIST, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701, Korea
choijhoo@konkuk.ac.kr
Korean Chemical Engineering Research, June 2005, 43(3), 412-418(7), NONE Epub 7 July 2005
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Abstract
상용 순환 유동층 연소로(200 ton steam/hr, 4.97×9.90×28.98 m)의 수관벽에서 전열관의 두께분포를 측정하였으며, 전열관 마모를 고찰하였다. 전열관의 두께는 초음파 측정방법을 이용하여 측정되었다. Splash 영역에서 윙월을 포함한 모든 수관벽 전열관의 마모가 심하게 발생하였다. 전면과 후면의 수관벽 하부 옆면벽에 가까운 양편에서 마모가 더 큰 것으로 나타났다. 기체출구 부근벽의 일부 전열관에서 상당한 전열관 마모가 발생되었다. 윙월에서는 연소로 단면의 내부로 들어올수록 전열관의 마모가 증가되는 것으로 나타났다.
The tube thickness map of water wall has been measured in a commercial circulating fluidized bed combustor (200 ton steam/hr, 4.97×9.90×28.98 m height) with ultrasonic method and tube erosion has been discussed. Severe tube erosion took place in the splash region on all waterwalls including wingwalls. Erosion on the lower part of front and rear walls, close to both side walls, was more serious than other places. Erosion of some tubes around the gas exit was found to be noticible. Tube erosion increased on the wingwall as the position of the tube become closer to the center of the combustor crosssection.
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Holtzer GJ, Rademakers PLF, "Studies on 90 MWth AKZO and 4 MWth TNO FBS Show Excellent Erosion-Corrosion Results", Proc. of the 1991 Int. Conf. on Fluidized Bed Combustion, 743-753 (1991)
Seitzinger DL, "Atmospheric Fluidized Bed Combustion Gas Erosion Solution", Proc. of the 13th Int. Conf. on Fluidized Bed Combustion, 585-595 (1995)
Zhao C, Chang Z, Jin H, Zhang L, "Effects of Fluidization Mode Transition on Erosion of Immersed Tubes in Pressureized Fluidized Bed", Proc. of the 16th Int. Conf. on Fluidized Bed Combustion, FBC01-0181 (2001)
Rogers WA, Boyle EJ, "Water Pediction in a Fluidized Bed Combustor", Proc. of the 1993 Int. Conf. on Fluidized Bed Combustion, 811-817 (1993)
Lindsley BA, Marder AR, Lewnard JJ, "The Effect of FBC particle Characteristics on Erosion of a Low Alloy Steel", Proc. of the 1993 Int. Conf. on Fluidized Bed Combustion, 803-809 (1993)
Ninham AJ, Entwisle MJ, Hutchings IM, Little JA, "A Laboratory-Scale Fluidized Bed Rig for High Temperature Tuge Wastage Studies", Proc. of Int. Conf. on Fluidized Bed Combustion, 583-589 (1989)
Hou PY, Sum JT, Niu Y, Stringer J, "HCI Effect on InBed Tube Wastage in Bubbling Fluidized Bed, a Laboratory Study under Simulated Dense Particle Impact Conditions", Proc. of the 15th Int. Conf. on Fluidized Bed Combustion, FBC 99-0137 (1999)
Sethi VK, Barber SA, Sherman SK, Gonzalez RA, Puentes E, Stencel JM, "Wear-Corrosion Synergism in Chlorine-Containing Coal Combustion Environments", Proc. of the 10th Int. Conf. on Fluidized Bed Combustion, 563-574 (1989)
Yamamoto K, Kajigaya I, Sonoya K, Tsuji Y, "Material Selection for the Super-Heater and Re-Heater Tubes on PFBC, Based on the Results of Laboratory Test and Ex-Serviced Materials Survey", Proc. of the 16th Int. Conf. on Fluidized Bed Combustion, FBC01-0191 (2001)
Vincent RQ, Canonico DA, Wheeldon JM, "An Evaluation Program for Metal Wastage in Fludized Bed Combustors", Proc. of the 1989 Int. Conf. on Fluidized Bed Combustion, 927-935 (1989)
Holtzer GJ, Rademakers PLF, "Studies on 90 MWth AKZO and 4 MWth TNO FBS Show Excellent Erosion-Corrosion Results", Proc. of the 1991 Int. Conf. on Fluidized Bed Combustion, 743-753 (1991)
