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@article{ART003023617},
author={Shin, Hee Won and Kim, Dong Wook and Kim, Ji Min and Jung, Hyo Beom and Kang Dong Hwa},
title={Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms},
journal={JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE},
issn={2733-8649},
year={2023},
volume={29},
number={4},
pages={69-77},
doi={10.15682/jkiha.2023.29.4.69}

TY - JOUR
AU - Shin, Hee Won
AU - Kim, Dong Wook
AU - Kim, Ji Min
AU - Jung, Hyo Beom
AU - Kang Dong Hwa
TI - Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms
JO - JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE
PY - 2023
VL - 29
IS - 4
PB - Korea Institute Of Healthcare Architecture
SP - 69
EP - 77
SN - 2733-8649
AB - Purpose: During the COVID-19 pandemic, there have been many cases of converting regular hospital wards into temporary negative pressure isolation wards. The purpose of this study is to evaluate the minimum airflow differences that satisfies the pressure difference criteria(-2.5 Pa) according to airtightness of switching type wards, in preparation for utilization of aging regular wards as negative pressure isolation wards. Methods: Visual inspection and field measurements were conducted using blower door to evaluate airtightness of 5 hospital wards. CONTAM simulation was used to assess the airflow differences when pressure difference between the corridor and wards met the criteria at various levels of airtightness. Results: The ACH50 of evaluated wards ranged from 19.3 to 50.1 h-1 with an average of 37.0 h-1, indicating more than four times leakier than other building types. The minimum airflow differences increased as the airtightness of the wards decreased and the size of the wards increased. Implications: When operating rapidly converted negative pressure isolation wards, understanding airtightness is crucial for determining the minimum airflow differences to maintain the pressure differences. The analysis of this study suggests that improving the airtightness of aging rooms is essential and the minimum airflow differences should be suggested considering both the airtightness and size of rooms.
KW - Negative pressure isolation room;Portable negative pressure unit;Minimum airflow differences between supply and exhaust air;Airtightness;CONTAM
DO - 10.15682/jkiha.2023.29.4.69
ER -

Shin, Hee Won, Kim, Dong Wook, Kim, Ji Min, Jung, Hyo Beom and Kang Dong Hwa. (2023). Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms. JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE, 29(4), 69-77.

Shin, Hee Won, Kim, Dong Wook, Kim, Ji Min, Jung, Hyo Beom and Kang Dong Hwa. 2023, "Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms", JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE, vol.29, no.4 pp.69-77. Available from: doi:10.15682/jkiha.2023.29.4.69

Shin, Hee Won, Kim, Dong Wook, Kim, Ji Min, Jung, Hyo Beom, Kang Dong Hwa "Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms" JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE 29.4 pp.69-77 (2023) : 69.

Shin, Hee Won, Kim, Dong Wook, Kim, Ji Min, Jung, Hyo Beom, Kang Dong Hwa. Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms. 2023; 29(4), 69-77. Available from: doi:10.15682/jkiha.2023.29.4.69

Shin, Hee Won, Kim, Dong Wook, Kim, Ji Min, Jung, Hyo Beom and Kang Dong Hwa. "Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms" JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE 29, no.4 (2023) : 69-77.doi: 10.15682/jkiha.2023.29.4.69

Shin, Hee Won; Kim, Dong Wook; Kim, Ji Min; Jung, Hyo Beom; Kang Dong Hwa. Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms. JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE, 29(4), 69-77. doi: 10.15682/jkiha.2023.29.4.69

Shin, Hee Won; Kim, Dong Wook; Kim, Ji Min; Jung, Hyo Beom; Kang Dong Hwa. Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms. JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE. 2023; 29(4) 69-77. doi: 10.15682/jkiha.2023.29.4.69

Shin, Hee Won, Kim, Dong Wook, Kim, Ji Min, Jung, Hyo Beom, Kang Dong Hwa. Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms. 2023; 29(4), 69-77. Available from: doi:10.15682/jkiha.2023.29.4.69

Shin, Hee Won, Kim, Dong Wook, Kim, Ji Min, Jung, Hyo Beom and Kang Dong Hwa. "Analysis of Minimum Airflow Differences between Supply and Exhaust Air according to Airtightness of Rapidly Converted Temporary Negative Pressure Isolation Rooms" JOURNAL OF THE KOREA INSTITUTE OF HEALTHCARE ARCHITECTURE 29, no.4 (2023) : 69-77.doi: 10.15682/jkiha.2023.29.4.69