Ceiling impact on air disinfection performance of Upper-Room Germicidal Ultraviolet (UR-GUV)

Lin, Tong; Wang, Lingzhe; Nardell, Edward A.; Vincent, Richard L.; Srebric, Jelena

doi:10.1016/j.buildenv.2022.109530

Cited by 10 publications

(9 citation statements)

References 48 publications

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“…Zhu et al [3] developed a CFD method to analyse air recirculation, filtration, and UR-GUV air disinfection with exhaled aerosols. The results suggest that the ceiling height affects the effectiveness of UR-GUV by influencing air mixing and UV exposure.…”

Section: Included Articlesmentioning

confidence: 99%

“…Of the 65 articles included, N = 21 used numerical approaches, with N = 5 [37,39,47,59,66] using mathematical modelling and N = 16 [3,16,19,21,24,[26][27][28]34,41,42,50,51,58,67,72] using finite elements simulations. More specifically, [24,27,37,39,41,50,59,66] investigated the irradiation field; refs.…”

Section: Numerical and Theoretical Approachesmentioning

confidence: 99%

“…More specifically, [24,27,37,39,41,50,59,66] investigated the irradiation field; refs. [34,47,51] are related to CFD simulations; and in [3,16,19,21,26,28,42,58,67,72], both fluid dynamics and radiation aspects are covered.…”

Section: Numerical and Theoretical Approachesmentioning

confidence: 99%

“…Regarding the location of the source (Table 1), N = 28 [1,3,4,12,15,18,20,23,[28][29][30][32][33][34][35]40,[47][48][49][50][51]54,56,59,60,66,70,72] involved the use of upper-room UVGI systems installed either on walls or ceilings, while for N = 8 articles [22,27,39,43,44,53,60,63], the source was installed directly inside the AHU (air-handling unit), and for N = 18 [2,16,17,[19][20][21]25,26,37,41,42,52,60,<...…”

Section: Set Configurationmentioning

confidence: 99%

“…Technologies based on ultraviolet germicidal irradiation (UVGI) are proving to be effective measures in disinfecting air, water, and surfaces to prevent disease transmission [3].…”

Section: Introductionmentioning

confidence: 99%

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

Cattai,

D’Orazio,

Sbardella

2023

Energies

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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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Section: Included Articlesmentioning

confidence: 99%

Section: Numerical and Theoretical Approachesmentioning

confidence: 99%

Section: Numerical and Theoretical Approachesmentioning

confidence: 99%

Section: Set Configurationmentioning

confidence: 99%

“…Technologies based on ultraviolet germicidal irradiation (UVGI) are proving to be effective measures in disinfecting air, water, and surfaces to prevent disease transmission [3].…”

Section: Introductionmentioning

confidence: 99%

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