醗酵液の攪拌所要動力と混合時間(生物化学工学特集号-II 滅菌および培養工学)

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Power requirements with and without aeration in liquid agitation non-Newtonian fermentation broth were measured by a strain gauge type dynamometer, and mixing times were determined by acid-base reaction method.Broth for the production of gluc-amylase by Endomyces species, and carboxymethyl-cellulose solution were used as non-Newtonian fluids.In gas-liquid agitation system, the correlation between P_g and (P_0^2ND_i^3/Q^<0.56>)^<0.45>observed by Michel and Miller was found to be appliable to non-Newuoian fluid in turbulent region, while the correlation could not be applied to non-Newtonian fluid in laminar and transient regions. The findings described above were especially clear in fluid with apparent viscosity larger than 400 c. p.The correlations between dimentionless term according to mixing time and Reynolds number (D_i^2N^<2-n>p)/(0.1K)((n/(6n+2))^n defined by Calderbank, were to be in accordance with those observed by Metzer in tubulent region. However the correlation could not be applied to non-Newtonian fluid in laminar regions.
公益社団法人日本生物工学会の論文
1965-08-25