Development and Performance Evaluation of an Electrostatic Air Cleaner for Removing Particulate Matter and Bioaerosol from Indoor Air
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Abstract
This research aims to design, develop and evaluate a prototype of an electrostatic air cleaner for the removal of particulate matter and bioaerosols from indoor air. An electrostatic air cleaner prototype consists of an electrostatic particle collector, a DC high voltage power supply, and a flow control system. In this system, a fan draws a sample air into the system through the two states electrostatic particle collector for charging and collecting the particulate matter and bioaerosols to improve the clean air quality. In this study, the collection efficiency of particulate matter and bioaerosols of the prototype was tested by the ASNI/AHAM AC-1-2002 standard test method with the aerosol particle and bioaerosol generators inside the 6 x 6 x 3 m test chamber. The real-time particulate matter and viable particle counters were used to measure the number of particulate matter concentrations and bioaerosols inside the test chamber. It was found from the experiment that high corona voltage and long testing time resulted in an increase in the collection efficiency of particulate matter and bioaerosols of the prototype. It was shown that the prototype of the developed air cleaner could be effective in removing particulate matter up to 99.60 % at the testing time of 70 minutes and could be reduced the number of concentrations of bioaerosols down to about 87.42 % for the testing time of 60 minutes.
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