Thermal-hydraulic irreversibility of electrically heated impeller blades

Alic, Fikret

doi:10.1016/j.ces.2013.09.040

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…The mechanical agitation could be also encountered in many other fields of industrial applications such as applications of food treatment, metallurgies, mass transfer, hydrology, heat transfer and so on. The previous researches in this field have indicated that the quality of mixed liquid depends essentially on the geometrical configurations of agitator (the form of impeller as well as the stirred vessel) as seen in (Ramírez-Muñoz et al 2016;Fort 2011;Fort et al 2013), the fluid parameters (density, viscosity…) (Kazemzadeh et al 2017;Ameur 2018;Moucha et al 2003) and operating mode (rotation speed of impeller, with or without thermal treatment) (Alic 2013;Rajasekaran et al 2018;Driss et al 2011). On the whole, the size of the agitator and its variety depends extremely on the application.…”

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confidence: 99%

Hydrodynamic Analyses of the Flow Patterns in Stirred Vessel of Two-Bladed Impeller

Laidoudi¹

2020

JSSCM

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In this paper, the governing equations of continuity and momentum subjected to suitable boundary conditions have been solved numerically to investigate the fluid flow in stirred vessel of two-bladed impeller. The numerical simulations have been carried out in three-dimensions for laminar flow. The studied fluid was considered Newtonian and incompressible. Our research studied the effects of geometrical configurations of the two-bladed impeller and its rotational speed on fluid patterns and mechanical power consumption. The innovative point in this paper is that the blades of the impeller contain three equal-sized holes of circular cross-section. The diameter of the hole (d) to the impeller diameter (D) gives the ratio d/D. the impeller speed is controlled by the Reynolds number (Re). The obtained results have been illustrated and discussed for the range of following governing parameters: d/D = 0 to 0.4 and Re = 1 to 300. The results showed that the studied parameters have significant effects on fluid flow and consumption power and the perforated blades of ratio d/D = 0.133 is more efficient than plan blades. Also, a new correlation is proposed to describe the consumption power as function of d/D and Re.

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