EM-6. Cooling vs size and cost

Imagine you are chief engineer at a paper mill. Design drive train for the winder with given characteristics:

• Drum diameter (empty) - 0,3 m,
• Drum diameter (full) - 0,6 m,
• Force - 16 kN,
• Speed of the line (rated) - 5 m/s,
• 400 V,
• flange&foot mounting of the motor,
• cooling water 30 deg.C is available.

(Source)

Make sure you keep machine type and efficiency class the same when comparing cooling and protection class variants. Include these parameters in your report.

Solve the problem using power components with (1) air cooling, (2) water cooling. Compare the air-cooled and water-cooled variants. Present the results in the table.