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World Journal of Engineering Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

ISSN 2454-695X

Impact Factor : 7.029

ICV : 79.45

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Abstract

ASSESSMENT OF MIXING EFFICIENCY UNDER DIFFERENT IMPELLER GEOMETRIES

Musilim A. A., Salau T. A. O., Raji N. K.*, Okoye G. U.

ABSTRACT

The efficiency and effectiveness of mixing processes in various industries are heavily influenced by the configuration and design of impellers used inside mixer tanks. The mixing process plays a critical role in many industrial applications, including chemical, paint, pharmaceutical, and food processing industries, where fluid homogeneity and energy efficiency are paramount. This study investigates the performance characterization of different impeller configurations, focusing on their impact on fluid dynamics, mixing time, power consumption, and overall efficiency within a mixer tank. Five impeller configurations were fabricated for the purpose of agitation in a mixer tank. The impellers were used to mix paint formulations, from which three parameters (viscosity, temperature andelectrical conductivity) were measured for different speed of operations (10 rpm, 20 rpm, 30 rpm, 40 rpm and 50 rpm) using times (0 minutes – 50 minutes at 5 minutes intervals). The statistical analysis results for three main factors (speed, type and time) for the partial eta squared (effective size) shows that speed has the highest impact (0.516) on viscosity, followed by time (0.414) and type is the least (0.169), the partial eta squared (effective size) shows that speed has the highest impact (0.998) on temperature, followed by type (0.989) and time is the least (0.980) while the partial eta squared (effective size) shows that type has the highest impact (0.976) on electrical conductivity, followed by speed (0.966) and time is the least (0.279).

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