Production of axial fans Rotors for industrial cooling system (CT, AFC, ACC) in the range 0.8m - 12m.

• Production of Fan Units
• Global Service and Revamping of cooling systems

High Efficiency – Unique System

• New Holistic Design Concept (impeller construction, airfoil edges effects, casing, obstacles, sealing…)
• CFD modeling and field tests to investigate impact on the efficiency of the fan due to:

• Casing Inlet/outlet
• Obstructions/obstacles
• Tip arrangement
• Hub arrangement
• Pressure distribution
• Development of a patented «UNIQUE» fan system able to:
• Re-distribute and optimize air pressure gradients
• Optimize air flows and sealings
• Minimize electric power consumption,
• Overall increase performances

Cooling Towers

Cooling systems are the crucial element for most of the common industrial processes, from power generation to petrochemical and steel mills.

Based on the extended experience on improving Wet Cooling Towers, AFI has gained great success on many upgrade and revamping projects. Our skilled engineers and Project team have more than 30 years of experience in the Cooling Systems sector.

AFI’s Capabilities are shortly

• Inspection of Existing CT and reporting upgrade possibilities
• Preparation of technical and commercial offer
• Thermal design
• Basic and Detailed CT Engineering
• Supply of internals and mechanical equipment’s
• Quality Control
• Project management
• Supervision at site
• Commissioning & Testing

Modernizing Cooling Tower Systems - ABB Motors and Mechanical Inc.

Cooling towers work by using water to extract heat from the HVAC system and release it into the atmosphere through evaporation. A fan on top of the cooling tower brings air from the bottom of the tower and moves it up and out in the

opposite direction of the warm condenser water at the top of the unit.

Traditional design overview:

• High associated maintenance (max500 operating hour maintenance intervals) “every 4 weeks”
• Standards cooling tower gearboxes typically have lower efficiency levels
• High vibration feedback caused by mechanical limitations
• Drive shaft failures
• Environmentally NOT compatible with industry it serves (oil leaks and contamination are issues)
• Windmilling effect can present issues on gearbox
• Excessive noise pollution

Benefits of direct drive motors:

• Eliminates the need for a gearbox, and associated components, reducing maintenance time and cost.
• Reduces energy consumption
• Longer life as motors have up to 5x the life expectancy of gearboxes.
• Eliminates the alignment of mechanical components for quicker installation, reduced installation costs and increased system efficiency

Typical Cooling Tower range:

Industrial: 7.5–250 kW

Power Plants: 250–350 kW

View Video - YouTube

A greener technology Less maintenance, improved reliability

ABB’s Baldor-Reliance direct drive motor and variable speed drive (VSD) package replaces the gearbox, drive shaft, disc coupling, and induction motor typically used in industrial cooling tower fans. The result is less parts, less maintenance, and improved safety and reliability.

This solution is “fit for purpose,” meaning, it is designed specifically for the application.

ABB cooling tower solution Energy savings even under low-load conditions

Eliminating gearbox maintenance issues with a simplified direct drive motor is just the beginning. The permanent magnet motor and drive package provides high system efficiency. The variable speed control allows the cooling tower to operate at optimum performance, which results in a considerable amount of energy being saved. The motors also run quieter, and the reduction in noise level is important, especially in towers that are located near “people-dense” buildings. In addition, by replacing the gearbox, the potential of environmental contamination is eliminated.

Website www.global.abb