A Systematic Review on the Application of Ultraviolet Germicidal Irradiation to HVAC Systems

With the renewed focus on indoor air quality (IAQ) due to “Sick building syndrome” and the recent COVID-19 pandemic, the availability of innovative components and innovative guidance for maintenance and systemic safety design will play an important role, with HVAC systems as protagonists. UV-C irrad...

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Main Authors: Francesca Cattai, Annunziata D’Orazio, Gianluca Sbardella
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/22/7569
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author Francesca Cattai
Annunziata D’Orazio
Gianluca Sbardella
author_facet Francesca Cattai
Annunziata D’Orazio
Gianluca Sbardella
author_sort Francesca Cattai
collection DOAJ
description With the renewed focus on indoor air quality (IAQ) due to “Sick building syndrome” and the recent COVID-19 pandemic, the availability of innovative components and innovative guidance for maintenance and systemic safety design will play an important role, with HVAC systems as protagonists. UV-C irradiation has been investigated for a long time, and some system solutions are known. The aim of this work is to provide an overview of the latest outcomes related to the innovative components of HVAC systems using UV-C irradiation and investigate the current state of the art. A procedure based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement was adopted, and the Scopus database was used to query the relevant literature. A total of 66 publications qualified for inclusion in the survey: 29 articles report experimental investigations, 24 articles are related to numerical or theoretical analysis, and both approaches were used in 13 articles. Many papers deal with upper-room UVGI, AHUs, and ducts. A few papers analyse mobile devices. The evaluation of the dose, as in the case of the definition of irradiance, is reported in a small number of articles. This lack of information makes the scenario imprecise and non-quantitative.
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spelling doaj.art-75d7675f346548d5a656a2964bd14cb12023-11-24T14:40:18ZengMDPI AGEnergies1996-10732023-11-011622756910.3390/en16227569A Systematic Review on the Application of Ultraviolet Germicidal Irradiation to HVAC SystemsFrancesca Cattai0Annunziata D’Orazio1Gianluca Sbardella2Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, ItalyDepartment of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, ItalyDepartment of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, ItalyWith the renewed focus on indoor air quality (IAQ) due to “Sick building syndrome” and the recent COVID-19 pandemic, the availability of innovative components and innovative guidance for maintenance and systemic safety design will play an important role, with HVAC systems as protagonists. UV-C irradiation has been investigated for a long time, and some system solutions are known. The aim of this work is to provide an overview of the latest outcomes related to the innovative components of HVAC systems using UV-C irradiation and investigate the current state of the art. A procedure based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement was adopted, and the Scopus database was used to query the relevant literature. A total of 66 publications qualified for inclusion in the survey: 29 articles report experimental investigations, 24 articles are related to numerical or theoretical analysis, and both approaches were used in 13 articles. Many papers deal with upper-room UVGI, AHUs, and ducts. A few papers analyse mobile devices. The evaluation of the dose, as in the case of the definition of irradiance, is reported in a small number of articles. This lack of information makes the scenario imprecise and non-quantitative.https://www.mdpi.com/1996-1073/16/22/7569UV-C radiationHVAC systemsUVGIindoor air qualitysystematic review
spellingShingle Francesca Cattai
Annunziata D’Orazio
Gianluca Sbardella
A Systematic Review on the Application of Ultraviolet Germicidal Irradiation to HVAC Systems
Energies
UV-C radiation
HVAC systems
UVGI
indoor air quality
systematic review
title A Systematic Review on the Application of Ultraviolet Germicidal Irradiation to HVAC Systems
title_full A Systematic Review on the Application of Ultraviolet Germicidal Irradiation to HVAC Systems
title_fullStr A Systematic Review on the Application of Ultraviolet Germicidal Irradiation to HVAC Systems
title_full_unstemmed A Systematic Review on the Application of Ultraviolet Germicidal Irradiation to HVAC Systems
title_short A Systematic Review on the Application of Ultraviolet Germicidal Irradiation to HVAC Systems
title_sort systematic review on the application of ultraviolet germicidal irradiation to hvac systems
topic UV-C radiation
HVAC systems
UVGI
indoor air quality
systematic review
url https://www.mdpi.com/1996-1073/16/22/7569
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