AAAR 32nd Annual Conference
September 30 - October 4, 2013
Oregon Convention Center
Portland, Oregon, USA
Abstract View
Collection Performance of Nanofiber Filters
YOSHIO OTANI, Hiroaki Matsuhashi, Yoshikazu Mizutori, Takafumi Seto, Kanazawa University
Abstract Number: 230 Working Group: Control Technology
Abstract Nanofiber filters are of great interest for application to air cleaning because they are believed to have a high collection efficiency and a low pressure drop. In the present work, the pressure drop and collection efficiency of nanofiber filters were predicted based on the conventional filtration theory and the determination of pressure drop and collection efficiency were performed. Furthermore we also measured the pressure drop and collection efficiency of microfiber filters at reduced pressures. As a result, we found that the collection efficiency of 20-nm particles becomes higher because of an increase in interceptional effect due to slip flow. For nanofiber filters, we were not able to show the effect of slip flow because of the filter inhomogeneity and extremely high collection efficiency.