| Advantages of Induced Draft Design Advantage Explanation Better Air Distribution The plenum chamber helps create a more uniform airflow across the entire tube bundle face, improving heat transfer efficiency. Reduced Hot Air Recirculation Because the fan discharges the hot air vertically at a high velocity, it is less likely to be sucked back into the air inlets, especially in multi-bay installations. This is a major operational advantage. Easier Maintenance on Fan Drive The motor and drive assembly are located on the top structure, making them more accessible for maintenance without needing to work directly under the bundle. Protection for Mechanical Parts The fan and drive are exposed to the warm, exiting air rather than the cold, often corrosive, ambient air. This can reduce corrosion and weathering of these critical components. Handles Higher Air Temperatures Since the fan is moving already-heated air, it is suitable for applications where the exit air temperature is high. |