Research & Development

The Cofimco blade design is the result of extensive research and analysis resulting in high performing and efficient axial fans. Constant research for new solutions and enhancement to current product line are realized through continuous improvement efforts.
Thanks to improved FEM analysis and CFD simulations, the Cofimco blade design is optimized from both a structural and aerodynamic point of view, helping to provide customized solutions for market requirements.

 

Scaled fan models are tested in two wind tunnels (1250mm./48” and 2000 mm./78” diameters) using British Standard fan test procedure BS 848. From this data, the fan curve characteristic to predict fan performance is generated.
Two test rigs (suitable for 4’-6’ and 9’-14’ fan diameter) are then used to verify the fan operative curves on actual units. This also allows us to determine the influence of variables such as tip clearance, aerodynamic disturbances and inlet shape. Sound tests are performed in accordance to DIN 45635 standard.

 

Cofimco’s test lab is equipped with the latest and most advanced equipment to perform the necessary tests required for research and development. This capability also enhances our field surveys and aftermarket services.
All Cofimco fan models are evaluated under simulated extreme working conditions. Fan blades are checked on fatigue machines and vibration benches in our test lab to ensure an infinite life for fan components. The most critical blade sections and hub are continuously monitored by strain gauge systems and compared to theoretical values from structural analysis.

 

Our “FanTastic” selection software (based on project specific requirements) generates optimized fan selections. This software, developed by Cofimco engineering provides all fan performance details: characteristic sheet, operating curves, multiple noise evaluation are only a few examples of the software’s capabilities.