Efficiency of PBT Impellers with Different Blade Cross-Sections

被引：3

作者：

Stelmach, Jacek ^{[1
]}

Musoski, Radoslaw ^{[1
]}

Kuncewicz, Czeslaw ^{[1
]}

Jirout, Tomas ^{[2
]}

Rieger, Frantisek ^{[2
]}

机构：

[1] Lodz Univ Technol, Fac Proc & Environm Engn, Wolczanska 213, PL-213 Lodz, Poland

[2] Czech Tech Univ, Fac Mech Engn, Prague 16000, Czech Republic

来源：

ENERGIES | 2022年 / 15卷 / 02期

关键词：

mixer hydrodynamics; mixing efficiency; impellers with different blade cross-sections; TURBULENCE ENERGY-DISSIPATION; MASS-TRANSFER COEFFICIENT; STIRRED TANKS; FLOW; PIV; CIRCULATION; SIMULATION; TURBINE; DESIGN; SUSPENSIONS;

D O I：

10.3390/en15020585

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this study, the mixing power and the axial and radial velocity distributions were determined for the standard PBT45-6 impeller with inclined blades and for three NACA impellers with airfoil blades. On the basis of the velocity distributions obtained by means of PIV techniques, the pumping efficiency and the size of the secondary circulation for the tested impellers were determined. The next stage was to calculate the efficiency of the impeller operation, in which the comparative criteria were the values of the mixing energy in the form of a dimensional and dimensionless criterion. The lowest mixing energy was obtained for impellers with symmetrical profiled NACA0021 blades, which was 20% lower than the similar mixing energy obtained for the standard PBT45-6 impeller.

引用

页数：19

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