서지주요정보
3차원 난류촉진기 주위에서 물질전달에 관한 연구 = Study on mass transfer around three-dimensional turbulence promotor
서명 / 저자 3차원 난류촉진기 주위에서 물질전달에 관한 연구 = Study on mass transfer around three-dimensional turbulence promotor / 김우식.
저자명 김우식 ; Kim, Woo-Sik
발행사항 [서울 : 한국과학기술원, 1984].
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소장정보

등록번호

4102460

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8407

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The mass transfer rate was measured around the cross flow which is a kind of sheet flow. The limiting current technique employing 0.01 M ferri-ferro cyanide in 1.0 M sodium hydroxide support solution was used to measure the mass transfer rate. Local mass transfer rates were measured using 16 small nickel plates which resembled cross sectional area and was arranged to fit cross sectional area. Each angle of cross flow (θ), mass transfer rate depended on flow rate in the lower chamber ($Re^{\ast}$), geometry of flow chamber (AR1) and the ratio of flow rate (AR2). Here AR1 is the ratio of the height to width of lower chamber then it represents the wall effect of flow chamber and AR2 is the ratio of average velocities in the upper and lower chamber. The angles of cross flow studied were 45°, 90° and 135°. The flow rates in the lower chamber ($Re^{\ast}$) were varied from 100 to 3200, AR1 was changed from 0.125 to 0.5 and AR2 from 0.5 to 2.5. When θ=135℃, the mass transfer rates were highly dependent on $Re^{\ast}$. The following correlations were obtained experimentally $ Sh = 15.78 Re^{\ast0.399} AR1^{-0.193}AR2^{0.207}$ (θ = 45°) $ Sh = 14.42 Re^{\ast0.475} AR1^{-0.042}AR2^{0.177}$ (θ = 90°) $ Sh = 5.82 Re^{\ast0.661} AR1^{0.212} AR2^{0.220}$ (θ = 135°) The rate of mass transfer in cross flow was always larger than that in the straight channel flow. The rate of increase appeared significant with the increase of flow rate in the lower chamber, AR1 and AR2. This was more significant when angle of cross flow was larger.

서지기타정보

서지기타정보
청구기호 {MCE 8407
형태사항 [v], 71 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Woo-Sik Kim
지도교수의 한글표기 : 장호남
지도교수의 영문표기 : Ho-Nam Chang
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 67-71
주제 Turbulent diffusion (Meteorology)
물질 이동. --과학기술용어시소러스
난류 혼합. --과학기술용어시소러스
Mass transfer.
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