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Chang Y Cha


Click on the titles below to find US government-authored or -collected reports written by Chang Y Cha

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RHELP (Regenerative High Efficiency Low Pressure) Air Purification System 18-Jun-2009 104 pages
Authors:  Chang-Yu Wu; Brian Damit; Qi Zhang; Myung-Heui Woo; Wolfgang Sigmund; Hyoungjun Park; Jan Marijnissen; Chang Y Cha; Alayna Jimenez; FLORIDA UNIV GAINESVILLE DIV OF SPONSORED RESEARCH
The full text of this report is available for sale.This project aims to develop a RHELP (Regenerative-High Efficiency-Low Pressure) air purification system using a novel ceramic nanofiber on silicon carbide in a microwave oxidizer that can effectively decontaminate air containing aerosolized chemical and biological (CB) agents. Nanofibermats of several materials were designed and fabricated using electrospinning process. Physical filtration testing showed performance (filter quality) exceeding military HEPA requirement. Multiple layers were found to have better filter quality than single ...


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