Development Of Air Duct Robot For HVAC System

Yew, Wai Mun (2015) Development Of Air Duct Robot For HVAC System. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text Development Of Air Duct Robot For HVAC System 24 Pages.pdf - Submitted Version Download (485kB)

Abstract

This project is about an implementation of a new idea to improve the effectiveness of air duct cleaning method by combining the inspection and cleaning function on a single air duct robot. The problem of indoor air pollution rise when the dust accumulated in HVAC system and lead to a lot of respiratory illness to human, such as asthma. Although air duct cleaning is conduct rapidly in certain commercial building to avoid the pollution, however, the cleaning process may not conduct perfectly and the process takes time and consumes energy. Thus, it is very suitable to propose a title on development of air duct robot for HVAC system to design and construct a reliable air duct robot to perform cleaning and inspection task for horizontal HVAC system. In designing an air duct robot, the center of mass is obtained for the whole system to ensure the robot achieved stability when performing task inside HVAC system. Next, experiment on the air duct robot is conducted using self-constructed HVAC system to analyze it accuracy and reliability. During the accuracy and reliability test, dust sensor, Arduino Uno, DC gear motor and motor driver are used. The accuracy experiment is determined by analyze the dust density detected in the closed container under dusty and dustless condition. For reliability test, the time taken for the air duct robot to perform cleaning and inspection task in self-constructed HVAC system is obtained. From the accuracy test conducted, result shows 6.85 mg/m3 deviation during the dustless condition and 9.03 mg/m3 deviation during the dust condition. In the reliability test, the root mean square error for the robot is 0.62s. Since the deviation in accuracy test is relatively small for both dust and dustless condition, hence the air duct robot is able to perform cleaning task accurately in HVAC system. During reliability test, the root mean square error of air the robot is relatively small, hence the robot is reliable in perform cleaning task inside HVAC system without defect within the acceptable time.

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