Goal:

Create a test stand to accurately measure air filter performance curves for future applications.

Requirements:

• Consistent air velocity profile with fully developed turbulent flow.
• Airtight system with multi-point air velocity and pressure measurements.
• High static pressure blower fan for enhanced versatility.

Design Highlights:

• Implementing a honeycomb flow straightener to ensure smoother, more uniform airflow.
• Modular design for flexible testing configurations.
• Honeywell ABP2 differential pressure drop measurement, and Renesas FS3000-015 sensor for air velocity before and after flow straightener.

Outcome:

Designed and built a test stand to evaluate filter performance, focusing on measuring air velocity and pressure differentials. While still a work in progress, the current design has highlighted opportunities for improving airflow uniformity. The fan's downward bias creates non-uniform flow, prompting further investigation into solutions such as extending the tunnel length, incorporating diverging and converging sections, and repositioning the fan to the suction side for better flow consistency.