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Research Abstracts Online
January 2010 - March 2011

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University of Minnesota Twin Cities
College of Science and Engineering
Department of Mechanical Engineering

PI: David Y.H. Pui, Associate Fellow

Design and Optimization of Pleated Filters With Particle Loading Using Numerical Methods

The most common method of removing particles from a fluid stream is via fibrous filters. This group’s research on filtration is supported by the Center of Filtration Research (CFR) sponsored by nine industrial companies and National Institute of Occupational Safety and Health (NIOSH). Filters that work under a high flow rate, such as cabin air filters and engine intake air filters, are pleated to increase the medium surface area and reduce pressure drop and cost. The design for pleated filters in the past relied mostly on experience and repetitive experiments, which are inefficient and costly. In the recent decade some studies about pleating design for clean filter media have been done using semi-empirical and numerical approaches. However, the models for the design of pleated filter with particle loading have rarely been reported in the literature. The goal of this group is to develop such a model with the aid of numerical simulation. They are calculating particle deposition on filter media from the interaction of gas flow field and particle trajectory. The simulation will help in understanding the performance of pleated filters with dust cake buildup and lead to a new design criterion for this condition.

Group Members

Christof Asbach, Institut für Energie- und Umwelttechnik (IUTA), Duisburg, Germany
Tsz Yan Ling, Graduate Student
Chaolong Qi, Research Associate
Weon Gyu Shin, Research Associate
Jimmy Jing Wang, Research Associate