Rates of induced aeration in agitated vessels

Hydrodynamics of a Stirred Vessel Equipped with a Gas-Inducing Impeller

“…An increase in the impeller submergence increases the hydrostatic head above the gas-inducing impeller, and as a result, the impeller has to rotate at a higher speed to induce the gas. This result is in agreement with those of Sawant et al (1980Sawant et al ( , 1981 and White and de Villiers (1977).…”

Hydrodynamics of a Stirred Vessel Equipped with a Gas-Inducing Impeller

“…An increase in the impeller submergence increases the hydrostatic head above the gas-inducing impeller, and as a result, the impeller has to rotate at a higher speed to induce the gas. This result is in agreement with those of Sawant et al (1980Sawant et al ( , 1981 and White and de Villiers (1977).…”

Design of Gas-Inducing Reactors

“…where φ is the vortexing constant, and using V CG ) 2πRN CG , we get This equation is very similar to that developed by White and de Villiers (1977). The above equation can also be written in terms of the Froude number, in a manner similar to that of eq 10; then the value of the constant turns out to be equal to 0.24, which is in excellent agreement with that of Sawant and Joshi (1979) and White and deVilliers (1977).…”

“…In this case, the constant C accounts for the nonidealities of the fluid, impeller slip, and frictional losses. The value of the constant is in agreement with that of White and de Villiers (1977). Heim et al (1995) have also used eq 10 for correlating their data on N CG .…”

Critical Review of Gas–Liquid Mixing Using Gas-Inducing Impellers: Modeling, CFD Simulation, and ANN Applications

“…They trained their model based on a wide range of aqueous solutions with different densities, viscosities, and surface tensions. Remarkably, their study revealed an expanded form of the expression proposed by White and De Villiers and Sawant et al for the induced gas flowrate: Ae = C false( italicFr − italicFr normalC false) a 1 e a 2 false( italicF italicr − italicF italicr normalc false) true( ρ ρ normalw true) a 3 e a 4 false( ρ ρ normalw false) true( μ μ normalw true) a 5 × e a 6 false( μ μ normalw false) true( T d true) a 7 e true( T d true) e a 8 false(…”

“…They trained their model based on a wide range of aqueous solutions with different densities, viscosities, and surface tensions. Remarkably, their study revealed an expanded form of the expression proposed by White and De Villiers 28 and Sawant et al 29 for the induced gas flowrate: i k j j j j j y { z z z z z i k j j j j j y…”

Hydrodynamics of a Stirred Vessel Equipped with a Gas-Inducing Impeller

“…An increase in the impeller submergence increases the hydrostatic head above the gas-inducing impeller, and as a result, the impeller has to rotate at a higher speed to induce the gas. This result is in agreement with those of Sawant et al (1980Sawant et al ( , 1981 and White and de Villiers (1977).…”

Design of Gas-Inducing Reactors

“…where φ is the vortexing constant, and using V CG ) 2πRN CG , we get This equation is very similar to that developed by White and de Villiers (1977). The above equation can also be written in terms of the Froude number, in a manner similar to that of eq 10; then the value of the constant turns out to be equal to 0.24, which is in excellent agreement with that of Sawant and Joshi (1979) and White and deVilliers (1977).…”

“…In this case, the constant C accounts for the nonidealities of the fluid, impeller slip, and frictional losses. The value of the constant is in agreement with that of White and de Villiers (1977). Heim et al (1995) have also used eq 10 for correlating their data on N CG .…”

Critical Review of Gas–Liquid Mixing Using Gas-Inducing Impellers: Modeling, CFD Simulation, and ANN Applications

“…They trained their model based on a wide range of aqueous solutions with different densities, viscosities, and surface tensions. Remarkably, their study revealed an expanded form of the expression proposed by White and De Villiers and Sawant et al for the induced gas flowrate: Ae = C false( italicFr − italicFr normalC false) a 1 e a 2 false( italicF italicr − italicF italicr normalc false) true( ρ ρ normalw true) a 3 e a 4 false( ρ ρ normalw false) true( μ μ normalw true) a 5 × e a 6 false( μ μ normalw false) true( T d true) a 7 e true( T d true) e a 8 false(…”

“…They trained their model based on a wide range of aqueous solutions with different densities, viscosities, and surface tensions. Remarkably, their study revealed an expanded form of the expression proposed by White and De Villiers 28 and Sawant et al 29 for the induced gas flowrate: i k j j j j j y { z z z z z i k j j j j j y…”

Hydrodynamics of a Stirred Vessel Equipped with a Gas-Inducing Impeller

“…An increase in the impeller submergence increases the hydrostatic head above the gas-inducing impeller, and as a result, the impeller has to rotate at a higher speed to induce the gas. This result is in agreement with those of Sawant et al (1980Sawant et al ( , 1981 and White and de Villiers (1977).…”

Design of Gas-Inducing Reactors

“…where φ is the vortexing constant, and using V CG ) 2πRN CG , we get This equation is very similar to that developed by White and de Villiers (1977). The above equation can also be written in terms of the Froude number, in a manner similar to that of eq 10; then the value of the constant turns out to be equal to 0.24, which is in excellent agreement with that of Sawant and Joshi (1979) and White and deVilliers (1977).…”

“…In this case, the constant C accounts for the nonidealities of the fluid, impeller slip, and frictional losses. The value of the constant is in agreement with that of White and de Villiers (1977). Heim et al (1995) have also used eq 10 for correlating their data on N CG .…”

Critical Review of Gas–Liquid Mixing Using Gas-Inducing Impellers: Modeling, CFD Simulation, and ANN Applications

“…They trained their model based on a wide range of aqueous solutions with different densities, viscosities, and surface tensions. Remarkably, their study revealed an expanded form of the expression proposed by White and De Villiers and Sawant et al for the induced gas flowrate: Ae = C false( italicFr − italicFr normalC false) a 1 e a 2 false( italicF italicr − italicF italicr normalc false) true( ρ ρ normalw true) a 3 e a 4 false( ρ ρ normalw false) true( μ μ normalw true) a 5 × e a 6 false( μ μ normalw false) true( T d true) a 7 e true( T d true) e a 8 false(…”

“…They trained their model based on a wide range of aqueous solutions with different densities, viscosities, and surface tensions. Remarkably, their study revealed an expanded form of the expression proposed by White and De Villiers 28 and Sawant et al 29 for the induced gas flowrate: i k j j j j j y { z z z z z i k j j j j j y…”