A flat blade turbine having six blades is centrally installed in a vertical tank. The tank is 6 ft (1.83 m) in diameter; the turbine is 2 ft. (0.61 m) in diameter and is positioned 2 ft (0.61 m) from the bottom of the tank. The turbine blades are 5 in. (127 mm) wide. The tank is filled to a depth of 6 ft (1.83 m) with a solution of 50 percent caustic soda, at 150°F (65.6°C), which has a viscosity of 12 cP and a density of 93.5 lb/ft3 (1498 kg/m3). The turbine is operated at 90 r/min. the tank is baffled. What power will be required to operate the mixer? (Given KL=403680).

Agitation and Mixing of Liquids topics include: Agitation power and scale up, mixing performance analysis, solids suspension, gas dispersion and bubble behaviour. Agitation refers to forcing a fluid by mechanical means to flow in a vessel. Mixing liquids is a common operation in the chemical and process industries. When two liquids combine to form a new liquid, they are called "miscible". If the liquids do not mix and form layers, they are called "immiscible".  Here are some other concepts related to mixing liquids: Blending: The process of mixing miscible liquids that are easily... Show more

Agitation and Mixing of Liquids topics include: Agitation power and scale up, mixing performance analysis, solids suspension, gas dispersion and bubble behaviour.

Agitation refers to forcing a fluid by mechanical means to flow in a vessel.

Mixing liquids is a common operation in the chemical and process industries. When two liquids combine to form a new liquid, they are called "miscible". If the liquids do not mix and form layers, they are called "immiscible". 

Here are some other concepts related to mixing liquids:
Blending: The process of mixing miscible liquids that are easily liquefied into a homogenous phase. Agitators can blend liquids of similar viscosities, but not different viscosities.
Turbulent flow: A type of fluid flow where the fluid undergoes irregular fluctuations or mixing.
Laminar flow: A type of liquid or gas flow where a fluid passes through a conduit regularly or smoothly.
Molecular diffusion: Essential to achieve mixing between two liquids.
Distillation: A process where a mixture of two or more liquids with different boiling points can be separated from each other.
Dissolution: The process of mixing a solute into a large quantity of solvent, resulting in the formation of a homogeneous mixture. 

Related: Food Processing Unit Operations Practice Test: Fluid Flow Theory & Applications

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