Effect of the number of impeller blades on the drop sizes in agitated dispersions

被引：27

作者：

Giapos, A ^{[1
]}

Pachatouridis, C ^{[1
]}

Stamatoudis, M ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, Dept Chem Engn, GR-54124 Thessaloniki, Greece

来源：

CHEMICAL ENGINEERING RESEARCH & DESIGN | 2005年 / 83卷 / A12期

关键词：

agitated dispersion; drop size distribution; liquid-liquid dispersion; disk type impeller; impeller blade; number of impeller blades;

D O I：

10.1205/cherd.04167

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A comparison is made of drop diameters produced by disk impellers having two, four, six and eight blades, all of the same impeller diameter and rotated at the same speeds. Measurements in situ at rotational speeds between 250 and 560 RPM and at hold-up fractions 0.01, 0.025, 0.07 showed that the Sauter mean drop diameters increase with the decrease of number of impeller blades and this increase may reach up to 52%. Plots of In d(32) versus In N, In d(32) versus In n and d(32) versus d(max) gave straight lines.

引用

页码：1425 / 1430

页数：6

共 18 条

[1] AN EXAMINATION OF SOME GEOMETRIC PARAMETERS OF IMPELLER POWER [J].

BATES, RL ;

FONDY, PL ;

CORPSTEI.RR .

INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT, 1963, 2 (04) :310-&

[2]

BAYVEL LP, 1985, ATOMIZ SPRAY TECHNOL, V1, P3

[3] DROP SIZE DISTRIBUTION OF STIRRED NON-COALESCING LIQUID-LIQUID SYSTEM [J].

BROWN, DE ;

PITT, K .

CHEMICAL ENGINEERING SCIENCE, 1972, 27 (03) :577-&

[4] EFFECT OF IMPELLER GEOMETRY ON DROP BREAK-UP IN A STIRRED LIQUID-LIQUID CONTRACTOR [J].

BROWN, DE ;

PITT, K .

CHEMICAL ENGINEERING SCIENCE, 1974, 29 (02) :345-348

[5]

Daglas D, 2000, CHEM ENG TECHNOL, V23, P437

[6] EFFECTIVE INTERFACIAL AREA IN AGITATED LIQUID-LIQUID CONTACTORS [J].

FERNANDE.JB ;

SHARMA, MM .

CHEMICAL ENGINEERING SCIENCE, 1967, 22 (10) :1267-&

[7]

GILES JP, 1971, P ISEC AMST

[8] FUNDAMENTALS OF THE HYDRODYNAMIC MECHANISM OF SPLITTING IN DISPERSION PROCESSES [J].

HINZE, JO .

AICHE JOURNAL, 1955, 1 (03) :289-295

[9]

KOLMOGOROV AN, 1949, DOKL AKAD NAUK SSSR+, V66, P825

[10]

OCONNELL FP, 1950, CHEM ENG PROG, V46, P358

← 1 2 →