Santiago underground is a fundamental pillar in the city urban transportation. At the end of 2010, the passenger ventilation system suffered constant faults due to motor overheating.
The reason was the low mechanic resistance of the ventilation motors cooling turbines and its high use. As a result, the system constantly failed, spare parts were rotated, and there were additional maintenance costs in order to maintain the system.
Prodin was commissioned a complete re-design, material study, and manufacturing of cooling turbines in order to improve this equipment reliability. As a solution, spare parts were completely re-designed, the composition steel alloy was replaced, as well as welding systems. The turbine flow volume characteristics were maintained, but material resistance was changed and the equipment reliability was substantially improved.
Once the turbines were implemented and tested, the motor electricity consumption was measured, and the passenger ventilation power consumption was reduced. Due to the product success, a replacement program was carried out with the replacement of 50 units.
