Investigation of Two Patterns Structure Model of Air Filter by CFD Analysis for Nanofiber Non-woven Fabric

抄録

The stable production method of nanofiber non-woven fabrics by the improved melt blow method and flash spinning method in consideration of mass productivity was investigated in a previous study. This report focused on filter characteristics as one of its applications; both a uniform distribution model and a fiber diameter distribution model have been proposed. First, the filtration performance of the fiber was experimentally tested by varying parameters such as the fiber thickness, filling rate, and fiber diameter. Second, the pressure loss and flow resistance were simulated using computational fluid dynamics (CFD) flow-analyzing software. It was confirmed that the proposed fiber diameter distribution model was closer to the experimental value than the uniform distribution model, and the relations among filling rate, fiber diameter, and flow resistivity were also verified.