화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
HWAHAK KONGHAK, Vol.36, No.2, 267-274, April, 1998
Export Citation
기체유동층에서 입자비산속도에 관한 상관식
A Correlation of Particle Entrainment Rate in Gas Fluidized Beds
최정후, 장인용, 선도원, 이창근, 손재익, 김상돈
초록
기존에 보고된 입자비산속도에 관한 측정값을 기반으로 하여 기포유동층과 순환유동층의 프리보드 기체출구에서 입자비산속도를 예측할 수 있는 일반화된 모델 상관식을 제시하였다. 기체유속, 유동층직경 및 높이, 고체 및 기체의 물성이 변수로 고려되었다. 제시된 상관식에 의한 예측값은 상온 및 고온의 기포유동층과 순환유동층에서 측정된 결과와 넓은 조업조건에서 만족스러운 일치를 보였다.
Generalized model correlations which can be used to predict the particle entrainment rate at the freeboard gas exit of bubbling and circulating fluidized beds have been proposed on the basis of previously measured entrainment rates. Gas velocity, column diameter, column height, properties of solid and gas were considered as variables. Particle entrainment rates predicted from proposed correlations agreed satisfactorily with values measured in cold- and hot-model bubbling fluidized beds and with values measured in circulating fluidized beds over the wide range of operating condition.
Keywords:Gas Fluidized Bed;Particle Entrainment Rate;Correlation
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