The FBL fan cooler unit is an air-cooled heat exchanger that provides cost-effective auxiliary cooling of water or synthetic
oils that circulate in a closed loop in power generation plants, pulp and paper plants and steel mills.
Design – key features and benefits. The heat transfer area of the FBL fan cooler consists of a
finned coil, featuring large numbers of corrugated aluminium plates and copper or stainless steel tubes mounted transversely.
These plates serve as both heat transfer fins and to hold the circulation tubes securely in position.
The tubes are expanded in order to provide a tight seal with the fins, and therefore ensure effective heat transfer and rigidity of the coil. Compared with traditional finned tubes, this design makes these units light in weight, compact and cost-effective in operation.
The fans are direct-driven by IEC international standard motors as standard, but other project-specific motor configurations are also available. Frequency converters are one way to control the exact cooling
capacity. Another very efficient way of ensuring full control of FBL fan cooler
Auxiliary closed-loop cooling for industrial processes FBL fan cooler typical installation including steal structure, ladder and handrails the cooling capacity in bigger installations with a large number of fan motors is with step control, switching some or all of the fans on and off, based on the cooling requirements at anygiven time.