서지주요정보
기-고 유동층에서 기포특성의 측정 = Measurement of bubble properties in a gas fluidized bed
서명 / 저자 기-고 유동층에서 기포특성의 측정 = Measurement of bubble properties in a gas fluidized bed / 이창근.
저자명 이창근 ; Lee, Chang-Keun
발행사항 [서울 : 한국과학기술원, 1985].
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소장정보

등록번호

4103058

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8542

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초록정보

Bubble properties such as bubble size distribution, bubble mean chord length, bubble rising velocity, bubble frequency and bubble void fraction for air-coal fluidization system have been measured using electro-resistivity probe in a 0.3 by 0.3 m in bed cross-section and 4.0 m in height cold test apparatus. Based on the measurements, the effect of parameters on the bubble properties have been discussed, such as excess air velocity(4.7 - 23.3 cm/sec), particle size (0.034 - 0.062 cm), prove height above distributor (10-40cm). The cumulative size distribution data are fitted well by a logarithmic normal probability distribution. A correlation equation which can predict the cumulative distribution line is presented. With this equation, one can predict the mean chord length, the standard deviation, the cumulative and number fraction in arbitrary operating condition. Mean chord length, bubble rising velocity increases with excess air velocity and probe height. However, the mean chord length is independent of particle size with excess air velocity as a parameter. Bubble rising velocity decreases a little with an increase of particle size. Bubble diameter was predicted by correlating the bubble rising velocity with the mean chord length. Bubble frequency and void fraction increases with excess air velocity.

서지기타정보

서지기타정보
청구기호 {MCE 8542
형태사항 [vii], 112 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : A, Design of distributor. - B, Bubble signal analysis. - C, Distribution function. - D, Experimental data
저자명의 영문표기 : Chang-Keun Lee
지도교수의 한글표기 : 손재익
지도교수의 영문표기 : Jae-Ek Son
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 85-89
주제 Bubbles.
유동층 반응기. --과학기술용어시소러스
기포. --과학기술용어시소러스
Fluidized reactors.
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