2026-09-22T09:44:47Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/113963 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Chamorro Chavez, Leonardo Patricio 2022-04-29T21:45:53Z 2024-04-29T21:47:53Z 2021-12 Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01 The student, Chun-I Chung, accepted the attached license on 2021-12-07 at 01:36. The student, Chun-I Chung, submitted this Thesis for approval on 2021-12-07 at 01:36. This Thesis was approved for publication on 2021-12-07 at 14:12. DSpace SAF Submission Ingestion Package generated from Vireo submission #17207 on 2022-04-06 at 17:16:50 Made available in DSpace on 2022-04-29T21:45:53Z (GMT). No. of bitstreams: 2 CHUNG-THESIS-2021.pdf: 2180043 bytes, checksum: bf1c79cd39ae5c4da16e5c3aa024190b (MD5) LICENSE.txt: 4209 bytes, checksum: 0e13b133054416fb5d06c5bcf1fda296 (MD5) Previous issue date: 2021-12-07 Embargo set by: Seth Robbins for item 123327 Lift date: 2024-04-29T21:46:25Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 123327 Lift date: 2024-04-29T21:47:53Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only application/pdf en text A new filter design for airborne disease transmission Chung, Chun-I 2021-12-07 Mechanical science 2022-04-29T21:45:53Z Two particle filters were designed using a vortex trap concept with equally spaced channels and tortuous airflow paths. A small wind tunnel was built to evaluate the filters’ efficiency under various conditions. Emphasis is placed on the effect of the following parameters, namely, tortuosity, T = 1.3 and 2.0, square conduit size of 0.4 mm and 0.7 mm, and incoming flow velocity U =0.2 m/s and 0.4 m/s. Results show that a particle size on the order of 10 μm passing through a two-layer filter with T = 2 and square-hole size of 0.7 mm width provide 98.5% efficiency. Thesis eng http://hdl.handle.net/2142/113963 Copyright 2021 Chun-I Chung Mechanical Sci & Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Thesis M.S.