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Showing 1 to 7 of 7 for “"Retreat-blade impeller"”.
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Experimental investigation of mixing time in a stirred, torispherical-bottomed tank equipped with a retreat-blade impeller
… These reactors are typically equipped with a retreat-blade impeller placed close to the bottom of the tank a single baffle mounted from the top. The mixing performance of such reactors has not received significant attention in the literature, despite their ubiquitous presence in the …
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Hydrodynamic CFD modeling of a pharmaceutical reactor vessel provided with a retreat-blade impeller under different baffling conditions
… Within these systems, both the vessel and impellers are typically glass-lined in order to provide superior corrosion resistance, prevent product contamination, and enhance cleanability. This approach, in turn, often requires the use of different, and sometimes sub-optimal, baffling …
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Power dissipation and mixing time in a partially filled pharmaceutical reactor equipped with a retreat-blade impeller at different fill ratios
… Because of glass-lining fabrication issues, a retreat blade impeller with a low impeller clearance off the tank bottom is commonly used in glass-lined reactors. In addition, since wall baffles cannot be easily mounted on the wall of glass-lining reactors, a single baffle, such as a "beavertail" …
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Minimum agitation speed for solid suspension and mixing time in a torispherical -bottomed pharmaceutical stirred tank under different baffling conditions
… with a torispherical bottom and agitated with a retreat-blade impeller under different baffling configurations. Ns for the same tank but equipped with a different agitation system, namely an axial impeller, was also experimentally determined for the purpose of comparing of performances of the two …
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Power dissipation and power correlations for a retreatblade impeller under different baffling conditions
… provided with a torispherical tank bottom and a retreat curve impeller with low impeller clearance from the vessel bottom. The power, P, dissipated by the impeller is a critical process parameter to mixing processes to achieve the desired mixing effect, especially since the power per unit volume, …
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Experimental determination of the mixing requirements for solid suspension in pharmaceutical stirred tank reactors
… industries. Because of fabrication issues, a retreat blade impeller (RBI) with a low impeller clearance off the tank bottom is commonly used in glass-lined reactors, typically combined with a single baffle (providing only partial baffling conditions) mounted from the top of the reactor. In …
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Precipitation of micro/nanoparticles in enhanced high energy dissipation mixing systems
… baffled cylindrical reactor stirred by a retreat-blade impeller, was first predicted using Computational Fluid Dynamics (CFD). Laser Doppler Velocimetry (LDV) was used to validate the CFD predictions of the velocity distribution in the reactor and especially in the mixing- precipitation …