Question: A flat-blade turbine type impeller is installed in a vertical 1.8m diameter tank which is filled with 48% sodium hydroxide solution to a depth of

A flat-blade turbine type impeller is installed in a vertical 1.8m

A flat-blade turbine type impeller is installed in a vertical 1.8m diameter tank which is filled with 48% sodium hydroxide solution to a depth of 1.8m. The turbine is 60cm in diameter and is positioned 60cm from the bottom of the tank. The turbine is operated at 90rpm. The tank is fitted with four baffles, each having a width of 18cm. Calculate the power consumption for the baffled and un-baffled mixer. Given Data: Density of 48% sodium hydroxide =1450kg/m3 and viscosity of solution =10Cp. The value of power number may be approximated from the following table for PovsRe. [4]

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