Diseño e implementación de un prototipo de purificador de aire para interiores, basado en radiación UV-C, como herramienta de prevención ante la propagación del SARS-CoV-2

In the present work, a prototype purifier was designed and built based on the implementation of ultraviolet radiation (254 nm) to airborne fomites resulting from human activity, composed primarily of stainless steel and PLA, employing 3D printing. The conceptual design was carried out on research an...

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Autor principal: Narváez Cevallos, Brandon Paúl (author)
Format: bachelorThesis
Idioma:spa
Publicat: 2022
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Accés en línia:https://dspace.unl.edu.ec/jspui/handle/123456789/24872
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Sumari:In the present work, a prototype purifier was designed and built based on the implementation of ultraviolet radiation (254 nm) to airborne fomites resulting from human activity, composed primarily of stainless steel and PLA, employing 3D printing. The conceptual design was carried out on research and experimentation associated with the pathogenesis of SARS-CoV-2. At a general level, we structured the system in four subsystems divided into different work areas according to the functionality of each one (disinfection, control, activation and feeding). We oriented the components of the prototype to fulfill the elementary needs for operation, especially the radiation sources. The control and management systems were implemented through a Raspberry Pi 3 B+ and its respective touch screen, developing a graphical interface (GUI) programmed in Python based on the operating requirements and other features for effective and intuitive interaction. Regarding the construction, we dimensioned the different structures to provide ease of assembly and deployment of the components, while also providing flexibility to the interconnection of the same. In addition, the coupling of secondary structures as a contribution to disinfection, such as the air filter, was contemplated. Finally, were carried out the tests concerning the dose reached by the device, obtaining values above the virus inactivation threshold. With this, we managed to develop a functional prototype of a digitally controlled air purifier oriented to the inactivation of SARS-CoV-2 for inhibiting the high rate of spread of the virus, which meets the expectations set out in the project. Keywords: Technology, inactivation, disinfection, UVGI.