Research on performance layout and management optimization of Grand Theatre based on green energy saving and emission reduction technology

Yong, Wang; Cho, Nam-gyu

doi:10.1016/j.egyr.2022.02.047

Cited by 5 publications

(6 citation statements)

References 12 publications

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“…Since the risk of infection increases signi cantly with the duration of the event 48 , it is recommended to limit the residence time in epidemic settings to a necessary minimum or to consider breaks 65 . Reducing the number of spectators is also an effective mitigation measure 25,66 . However, experimental and numerical measurements showed a heterogeneous impact of the occupancy rate for the venues with mixing ventilation, similarly to the moderate effects of recent studies 36,66 .…”

Section: Discussionmentioning

confidence: 99%

“…Venues are usually complex spaces with multiple areas that require special ventilation concepts to ensure good air quality and a low risk of infection throughout the venue. In the past, however, mechanical ventilation systems of venues were given a low priority in the prevention of airborne diseases, as the focus was primarily on the requirements for quiet operation, thermal comfort and economical energy consumption [21][22][23][24][25] . Although venue studies on the risk of airborne disease transmission have increased since the COVID-19 pandemic, a comprehensive risk assessment comparing and classifying different ventilation concepts with regard to their risk of transmitting infectious aerosols is still lacking.…”

Section: Introductionmentioning

confidence: 99%

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SARS-CoV-2 airborne infection risk in venues with different ventilation strategies – a comparison between experimental, numerical and analytical approaches

Geisler,

Lausch,

Hehnen

et al. 2023

Preprint

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The COVID-19 pandemic demonstrated that reliable risk assessment of venues is still challenging and resulted in the indiscriminate closure of many venues worldwide. Therefore, this study used an experimental, numerical and analytical approach to investigate the airborne transmission risk potential of differently ventilated, sized and shaped venues. The data were used to assess the effect size of different mitigation measures and to develop recommendations. In general, positions in the near field of an emission source were at high risk in all ventilation systems studied, while the risk of infection from positions in the far field varied depending on the ventilation strategy. Occupancy rate, airflow rate, residence time, SARS-CoV-2 virus variants, a high activity level and face masks affected the individual and global infection risk in all venues. The global infection risk was lowest for the displacement ventilation case and highest for the naturally ventilated venue. Therefore, in our study, a properly designed displacement ventilation system is the most effective ventilation strategy to keep airborne transmission and the number of secondary cases low, compared to mixing or natural ventilation.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

SARS-CoV-2 airborne infection risk in venues with different ventilation strategies – a comparison between experimental, numerical and analytical approaches

Geisler,

Lausch,

Hehnen

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…. Reducing the number of spectators is also an effective mitigation measure 25,68 . However, experimental and numerical measurements showed a heterogeneous impact of the occupancy rate for the venues with mixing ventilation, similarly to the moderate effects of recent studies 36,68 .…”

Section: Discussionmentioning

confidence: 99%

“…Venues are usually complex spaces with multiple areas that require special ventilation concepts to ensure good air quality and a low risk of infection throughout the venue. In the past, however, mechanical ventilation systems of venues was given a low priority in the prevention of airborne diseases, as the focus was primarily on the requirements for quiet operation, thermal comfort and economical energy consumption [21][22][23][24][25] . Although venue studies on the risk of airborne disease transmission have increased since the COVID-19 pandemic, a comprehensive risk assessment comparing and classifying different ventilation concepts with regard to their risk of transmitting infectious aerosols is still lacking.…”

Section: Introductionmentioning

confidence: 99%

Airborne infection risk in venues with different ventilation strategies – a comparison between experimental, numerical and analytical approaches

Geisler,

Lausch,

Hehnen

et al. 2023

Preprint

View full text Add to dashboard Cite

The COVID-19 pandemic demonstrated that reliable risk assessment of venues is still challenging and resulted in the indiscriminate closure of many venues worldwide. Therefore, this study used an experimental, numerical and analytical approach to investigate the airborne transmission risk potential of differently ventilated, sized and shaped venues. The data were used to assess the effect size of different mitigation measures and to develop recommendations. In general, positions in the near field of an emission source were at high risk in all ventilation systems studied, while the risk of infection from positions in the far field varied depending on the ventilation strategy. Occupancy rate, airflow rate, residence time, SARS-CoV-2 virus variants, activity level and face masks affected the individual and total infection risk in all venues. The total infection risk was lowest for the displacement ventilation case and highest for the naturally ventilated venue. Therefore, in our study, a properly designed displacement ventilation system is the most effective ventilation strategy to keep airborne transmission and the number of secondary cases low, compared to mixing or natural ventilation.

show abstract

“…Refs. [ [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] ], or operational energy reduction [ 28 ]. Airborne bacteria were sampled from the air in a lecture theatre in China, but the study investigated only one space for one day, so only preliminary conclusions could be drawn [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

A post-occupancy study of ventilation effectiveness from high-resolution CO2 monitoring at live theatre events to mitigate airborne transmission of SARS-CoV-2

Adzic

Roberts

Hathway

et al. 2022

Building and Environment

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Research on performance layout and management optimization of Grand Theatre based on green energy saving and emission reduction technology

Cited by 5 publications

References 12 publications

SARS-CoV-2 airborne infection risk in venues with different ventilation strategies – a comparison between experimental, numerical and analytical approaches

SARS-CoV-2 airborne infection risk in venues with different ventilation strategies – a comparison between experimental, numerical and analytical approaches

Airborne infection risk in venues with different ventilation strategies – a comparison between experimental, numerical and analytical approaches

A post-occupancy study of ventilation effectiveness from high-resolution CO2 monitoring at live theatre events to mitigate airborne transmission of SARS-CoV-2

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