Design of optical cavity for air sanification through ultraviolet germicidal irradiation | Zendy

Matteo Lombini | Zendy; Emiliano Diolaiti | Zendy; A. de Rosa | Zendy; Luigi Lessio | Zendy; Giovanni Pareschi | Zendy; Andrea Bianco | Zendy; Fausto Cortecchia | Zendy; M. Fiorini | Zendy; Giulia Fiorini | Zendy; G. Malaguti | Zendy; Alessio Zanutta | Zendy

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Design of optical cavity for air sanification through ultraviolet germicidal irradiation

Author(s) -

Matteo Lombini,

Emiliano Diolaiti,

A. de Rosa,

Luigi Lessio,

Giovanni Pareschi,

Andrea Bianco,

Fausto Cortecchia,

M. Fiorini,

Giulia Fiorini,

G. Malaguti,

Alessio Zanutta

Publication year - 2021

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.422437

Subject(s) - irradiance , optics , ultraviolet , airborne transmission , transmission (telecommunications) , irradiation , materials science , ray tracing (physics) , filter (signal processing) , ultraviolet radiation , optoelectronics , environmental science , remote sensing , covid-19 , physics , computer science , telecommunications , chemistry , medicine , disease , pathology , nuclear physics , infectious disease (medical specialty) , radiochemistry , computer vision , geology

The transmission of airborne pathogens represents a major threat to worldwide public health. Ultraviolet light irradiation can contribute to the sanification of air to reduce the pathogen transmission. We have designed a compact filter for airborne pathogen inactivation by means of UVC LED sources, whose effective irradiance is enhanced thanks to high reflective surfaces. We used ray-tracing and computational fluid dynamic simulations to model the device and to maximize the performance inside the filter volume. Simulations also show the inhibition of SARS-Cov-2 in the case of high air fluxes. This study demonstrates that current available LED technology is effective for air sanification purposes.

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