Abstract 

Heating, ventilation, and air conditioning (HVAC) systems play a pivotal role in maintaining indoor air quality (IAQ) in residential, commercial, and industrial buildings. However, the accumulation of dust, debris, and pollutants within HVAC ducts poses a significant challenge, contributing to IAQ issues. Studies suggest that a substantial portion of IAQ problems stem from inadequate maintenance of HVAC systems. Current air duct cleaning robots face several limitations, including slow operation, inability to navigate complex duct layouts, and inefficiency in handling diverse duct sizes, thus compromising their cleaning effectiveness. Addressing these challenges is crucial to enhancing IAQ and optimizing HVAC system performance. This work aims to bridge this gap by proposing improved structural designs for air duct cleaning robots. The proposed designs aim to rectify existing issues such as slow cleaning, limited maneuverability, and ineffectiveness in eliminating mold, bacteria, and viruses. By overcoming these shortcomings, the enhanced robots seek to revolutionize automated duct maintenance, ensuring cleaner and healthier indoor environments.

 Conceptual Design

3D CAD Model:

Application view

Rendered images

Prototype