Feasibility Study in Develop the Rotating Electrodes, Electrostatic Air Cleaner for Removal Particulate Matter from Indoor Air

Abstract

This paper aims to conduct a feasibility study to develop the rotating electrodes and
electrostatic air cleaner to remove particulate matter from indoor air. An electrostatic air cleaner prototype consists of a rotating electrostatic particle collector, a DC high voltage power supply, and an airflow control system. In this system, a fan draws a sample air into the system through the
rotating electrostatic particle collector to charge and collect the particulate matter to improve the clean air quality. In this study, the collection efficiency of particulate matter of the prototype was tested by the aerosol particle generator inside the 2 x 2 x 2 m test chamber. The gravimetric air sampling method was used for sampling the mass of particulate matter inside the test chamber for the testing time of 15, 30, 45, and 60 min. It was found from the experiment that high corona
voltage and long testing time increased the collection efficiency of particulate matter of the
prototype. It was shown that the prototype of the developed air cleaner could effectively remove particulate matter up to 91.20% at the testing time of 60 minutes. It was also found that the
rotating electrodes and self-cleaning system can be used with electrostatic precipitation air cleaner systems, which can reduce the operational maintenance of the collection electrode plates.