http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : William Follett (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
이규화,William Follett,박경일,김동원,이종민,Scott Halloran 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.4
The Biot number, one of the factors of the heat transfer coefficient, is computed through computationalparticle fluid dynamic simulation for the development of Oxy-PFBC technology. This technology enables no additionalCO2 separation for its capture by injecting pure oxygen, rather than air into pressurized bubbling fluidized bedboilers. This number is a dimensionless coefficient that is affected by the structure of the combustor and its heatexchangers, determining the degree of heat diffusion in the fluidized bed. In this manner, finding the proper Biot numberis important for the development of Oxy-PFBC design program since it directly affects operability and performance. First, to compute the Biot number, the model of the Grimethrope PFBC combustor was demonstrated throughthe KEPCO-GTI Oxy-PFBC design program. The program showed good prediction of the Grimethorpe bed temperatureprofile after the calibration of the Biot number. The bed temperature profile for a specific combustor structuraldesign and operation condition was computed; it was used to calibrate the Biot number suitable for the Oxy-PFBCcombustor, through 3D computational particle fluid dynamics simulation (Barracuda program). The calibrated Biotnumber turns out to be ten times smaller, which is from 0.002 to 0.0002. Prior to computing the Biot number, to validatethe simulation program, a comparison analysis was conducted with cold-flow fluidization test data. The resultsshowed that the simulation matched well with the actual test data.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
