Publications by authors named "Myoung-Souk Yeo"
Background: During the COVID-19 pandemic, in South Korea, several inpatient wards were converted to temporary negative pressure isolation (TNPI) wards by using portable high-efficiency particulate air filter units (PHUs). This study proposes improvements to the TNPI ward to prepare for airborne infections.
Methods: Existing air-conditioning systems were investigated during the pandemic in 4 hospitals through a document review and field investigation with staff interviews.
Towards optimal design of patient isolation units in emergency rooms to prevent airborne virus transmission: From computational fluid dynamics to data-driven modeling.
Comput Biol Med
May 2024
Article Synopsis
- Patient isolation units (PIUs) are effective for infection control, but optimizing their design typically requires extensive computational resources, which this study aims to address using data-driven models.
- The study used computational fluid dynamics (CFD) to examine how various PIU settings and room conditions impact ventilation and isolation, focusing on airflow patterns and particle dispersion from coughing.
- Key findings indicate that while physical isolation alone isn't enough to stop particle spread, the addition of a fan filter unit (FFU) significantly improves isolation performance, with its positioning being the most crucial factor influencing PIU effectiveness.
In areas with poor ambient air quality, indoor particle concentrations can be significantly affected by particulate matter originating outdoors. The indoor environments of multi-zone and multi-story buildings are affected differently by outdoor particles compared with single-family houses, because of the buildings' more complicated airflow characteristics. The objective of this study is to analyze outdoor particle penetration and transport, and their impact on indoor air, in a multi-zone and multi-story building using a CONTAMW simulation.
View Article and Find Full Text PDF