A lab scale mixing tank fitted with baffles and a 6 blade-flat blade turbine agitator is used to mix a fuel. The agitator operates at a rotor speed of 3 rev.s-1 in the baffled tank which conforms to the standard configuration. The diameter of the tank is 4 m and operates at an efficiency of 75 %. The fuel used in the experiments has a density of 1100 kg./m3 and a viscosity of 1.4Pa.s. 1.1. Determine the actual power output of the agitator, and determine the dimensions of the standard tank, i.e. DA, HA, a, r, HL and b. 1.2. The mixer needs to be scaled up 5 times for industrial purposes What is the actual power output of the scaled up agitator if the tip speed is the same as the pilot scale experiments?
A lab scale mixing tank fitted with baffles and a 6 blade-flat blade turbine agitator is used to mix a fuel. The agitator operates at a rotor speed of 3 rev.s-1 in the baffled tank which conforms to the standard configuration. The diameter of the tank is 4 m and operates at an efficiency of 75 %. The fuel used in the experiments has a density of 1100 kg./m3 and a viscosity of 1.4Pa.s.
1.1. Determine the actual power output of the agitator, and determine the dimensions of the standard tank, i.e. DA, HA, a, r, HL and b.
1.2. The mixer needs to be scaled up 5 times for industrial purposes What
is the actual power output of the scaled up agitator if the tip speed is the same as the pilot scale
experiments?
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