AAAR 34th Annual Conference
October 12 - October 16, 2015
Hyatt Regency
Minneapolis, Minnesota, USA
Abstract View
A Numerical Study for Fine Particle Removal Gadget with Low Pressure Drop and Superior Efficiency for Industrial Application
YOUNGJIN SEO, Kumoh National Institute of Technology
Abstract Number: 619 Working Group: Control Technology
Abstract Air quality is an issue of increasing concern as it is directly related to human health. Thus, environmental regulations for air quality have been stringent over the past few decades. This study is focused on providing a possible solution that could remove fine particles with superior efficiency. Consequently, the final goal is to fabricate and to operate in a plant. In order to do so, the pressure drop must be maintained as low as 500 mmH2O, which is the typical pressure drop through a commercial bag filtration system. Most plants utilize bags to capture generated particulate matters such as fume and dust; however the bags must be replaced periodically. Worse still, aerosol removal efficiencies across bags vary widely depending on types of bags. This study determines the aerosol removal efficiency of the most widely used commercially available bags. For instance, particles larger than 7.5 micro-meters are 100 percent filtered by a glass fiber filter, while the efficiency with a polyester filter is significantly lower than that with the fiber filter. In addition, an alternative that doesn’t require any bags for filtration is announced and preliminary results by CFD (computational fluid dynamics) are introduced. According to the CFD study, the alternative removes 100 percent of particles larger than 3 micro-meters with a pressure drop of less than 500 mmH2O. The air flow-rates could be as high as 500 cubic meters per minute.