What power is required for the mixing operation of Prob. 9.1 if a propeller 360 mm in diameter turning at 15 r/s is used and if four baffles, each 120 mm wide, are installed?

Prob. 9.1

A tank 1.2 m in diameter and 2 m high is filled to a depth of 1.2 m with a latex having a viscosity of 10 P and a density of 800 kg/m³. The tank is not baffled. A three-blade 360-mm-diameter propeller is installed in the tank 360 mm from the bottom. The pitch is 1:1 (pitch equals diameter). The motor available develops 8 kW. Is the motor adequate to drive this agitator at a speed of 800 r/min?