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Improvement of a UV/Ozone Duplex Sterilizer
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 Title & Authors
Improvement of a UV/Ozone Duplex Sterilizer
Jee, Jung-Eun; Yang, Won-Kyun; Park, Eun-Chul; Kim, Kang-Suk; Joo, Jung-Hoon;
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We investigated sterilization characteristics of UV lights by counting the number of bacteria units with varying sterilization time and distance from the light source. We focused on an idea that UV light of 184.9 nm could generate ozone and developed a new sterilizer. The UV-ozone duplex system sterilized bacteria faster than UV-only sterilizers. To reduce shadowing effects by target objects, we used UV transparent quartz plate as a support and put a reflecting plate. Distribution of UV irradiation intensity and ozone supply were analyzed by a 3D model and measured by a semiconductor UV sensor. But even with an Al reflector, multi-layered pens could not be treated properly from UV irradiation only. Ozone generating lamp could treat more uniformly multi-layered pens with a stirring fan by supplying ozone to shadowed surfaces.
UV-Ozone sterilizer;Reflecting plate;Transmitting plate;Bacteria;Numerical model;
 Cited by
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