서지주요정보
과산소 공기를 이용한 발효 기포탑에서의 $K_La$ 의 동적 특성 = Dynamic measurement of $K_La$ in bubble column fermentation with oxygen-enriched air
서명 / 저자 과산소 공기를 이용한 발효 기포탑에서의 $K_La$ 의 동적 특성 = Dynamic measurement of $K_La$ in bubble column fermentation with oxygen-enriched air / 김동진.
저자명 김동진 ; Kim, Dong-Jin
발행사항 [서울 : 한국과학기술원, 1987].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

4104614

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8704

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

A rapid and reliable method of volumetric oxygen transfer coefficient ($K_La$) estimation in bubble column under fermentation is proposed. This method consists of a sudden change of inlet oxygen concentration with rotameters and valves while gas flow rate was held constant. Dissolved oxygen concentration was measured by dissolved oxygen electrode. The slope of the semi-log plot of the dissolved oxygen concentration response was used for $K_La$ estimation. In simulation studies, both gas and liquid phase dynamics were considered. The well-mixed gas and liquid phase model was well fitted and the effect of oxygen solubility variation on $K_La$ during fermentation was negligible with the slope method. In fermentation systems, $K_La$ estimation was possible at low dissolved oxygen concentration with oxygen-enriched air if only the dissolved oxygen concentration were higher than the critical point. This method needs less oxygen than when nitrogen is used for oxygen removal in the original gassing-in method.

서지기타정보

서지기타정보
청구기호 {MCE 8704
형태사항 vi, 81 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : A, Well-mixed gas and liquid phases (MMB model). - B, Oxygen electrode response with MMB model
저자명의 영문표기 : Dong-Jin Kim
지도교수의 한글표기 : 장호남
지도교수의 영문표기 : Ho-Nam Chang
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 71-76
주제 Oxygen transfer, defective.
발효. --과학기술용어시소러스
산소 소모. --과학기술용어시소러스
Fermentation.
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