80mm Fan to 60mm Tube

thingiverse

A compact heat exchanger system requires efficient airflow through a narrow duct. A conventional 80mm fan may not be able to provide sufficient airflow due to its limited size and power output, leading to reduced system performance and increased pressure drop across the duct. To address this issue, consider installing a smaller tube with an inner diameter of 60mm that can handle the reduced airflow while maintaining optimal system efficiency. This design modification will allow for improved heat exchange rates and minimized pressure losses within the compact system.