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WEN Jianping; JIA Xiaoqiang; MAO Guozhu
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闻建平; 贾晓强; 毛国柱
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Abstract: A small scale isotropic mass transfer model was developed for the local liquid side mass transfer coefficients in gas-liquid-solid three-phase flow airlift loop reactor for Newtonian and non-Newtonian fluids. It is based on Higbie’s penetration theory and Kolmogoroff’s theory of isotropic turbulence with kl=3√2D∈11/3/π(η1^-1/3-λf^-1/3)where e1 is local rate of energy dissipation, Af is the local microscale, r/l is the local Kolmogoroff scale and D is the diffusion coefficient. The capability of the proposed model is discussed in the light of experimental data obtained from 12 L gas-liquid-solid three-phase flow airlift loop reactor using Newtonian and non-Newtonian fluids. Good agreement with the experimental data was obtained over a wide range of conditions suggesting a general applicability of the proposed model.
Key words: diffusivity, energy dissipation, Kolmogoroff scale, microscale, penetration theory
摘要: A small scale isotropic mass transfer model was developed for the local liquid side mass transfer coefficients in gas-liquid-solid three-phase flow airlift loop reactor for Newtonian and non-Newtonian fluids. It is based on Higbie’s penetration theory and Kolmogoroff’s theory of isotropic turbulence with kl=3√2D∈11/3/π(η1^-1/3-λf^-1/3)where e1 is local rate of energy dissipation, Af is the local microscale, r/l is the local Kolmogoroff scale and D is the diffusion coefficient. The capability of the proposed model is discussed in the light of experimental data obtained from 12 L gas-liquid-solid three-phase flow airlift loop reactor using Newtonian and non-Newtonian fluids. Good agreement with the experimental data was obtained over a wide range of conditions suggesting a general applicability of the proposed model.
关键词: 三相流动;反应器;非牛顿流体;化工设备;转移模式
WEN Jianping, JIA Xiaoqiang, MAO Guozhu. Local Liquid Side Mass Transfer Model in Gas-Liquid-Solid Three-Phase Flow Airlift Loop Reactor for Newtonian and Non-Newtonian Fluids[J]. .
闻建平,贾晓强,毛国柱. 气-液-固三相气升式环流反应器中牛顿型及非牛顿型流体局部液相传质模型[J]. CIESC Journal.
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https://hgxb.cip.com.cn/EN/Y2004/V12/I3/347