All Issue

2021 Vol.15, Issue 6 Preview Page

Research Article

Analysis of the Local Ventilation Effects in a University Classroom Equipped with Ductless Energy Recovery Ventilators

실내 무덕트형 열회수 환기장치가 구비된 대학 강의실의 위치별 환기 효과 분석

Seung-Hoon Park1
,
Jae-Hun Jo2
,
Eui-Jong Kim3*
박 승훈1
,
조 재훈2
,
김 의종3*
1Ph.D. Candidate, Department of Smart-City Engineering, Graduate School of Inha University, Incheon, Korea
2Professor, Department of Architectural Engineering, Inha University, Incheon, Korea
3Associate Professor, Department of Architectural Engineering, Inha University, Incheon, Korea
1인하대학교 대학원 스마트시티공학과 박사과정
2인하대학교 건축학부 건축공학과 교수
3인하대학교 건축학부 건축공학과 부교수
*Corresponding Author
30 December 2021. pp. 818-828
PDF XML Citation
Abstract

As an increasing global concern about air pollution, the demand for adequate ventilation is also increasing. In particular, the demand for ductless ERVs equipped with high-efficiency particulate air (HEPA) filters is increasing especially for buildings that were not targets of the mandatory ERV installation when being constructed. There are insufficient research data for the ventilation effects of ductless ERVs that supply the fresh air from single diffusers. The purpose of this study is to measure and analyze the local ventilation effects by measuring indoor CO2 and PM2.5 levels when operating ductless ERVs equipped with HEPA filters in a university classroom. The results show that the local ventilation efficiency according to measuring points can be deviated by 0.26 for CO2 and 0.35 for PM2.5, respectively. Thus, proper locations when installing the ductless ERVs must be carefully selected for ensuring an even distribution of the local ventilation efficiency.

Keywords
Classroom
Indoor air quality
Energy recovery ventilator
Measurement
Ventilation effectiveness
키워드
강의실
실내 공기질
열회수 환기장치
측정
환기 효율
References
1
Choi, J.M., Cho, S.W. (2009). A study on the indoor airflow pattern by changing the location of mechanical terminal unit. Korean Journal of Air-Conditioning and Refrigeration Engineering, 21(3), 193-200.
2
Choi, Y.H., Song, D.S. (2017). Analysis of the local air-change effectiveness by field measurement. Korean Journal of Air-Conditioning and Refrigeration Engineering, 29(2), 63-67.
3
Fisk, W.J. (2015). Review of some effects of climate change on indoor environmental quality and health and associated no-regrets mitigation measures. Building and Environment, 86, 70-80. 10.1016/j.buildenv.2014.12.024
4
Han, H.T., Choi, S.H., Lee, W.W. (2002). Distributions of local supply and exhaust effectiveness according to room airflow patterns. International Journal of Air-Conditioning and Refrigeration, 10(4), 177-183.
5
Hong, B.J. (2007). An Evaluation for the Indoor Ventilation Efficiency by the Various Ventilation Methods and the Air Diffuser Location. Journal of Korean Institute of Architectural Sustainable Environment and Building Systems, 1(1), 38-43.
6
Jang, M.S., Yoo, H.H., Min, J.H. (1998). A Study on the Indoor Air Quality affected by Opening and Contaminant Generation Position. Journal-Architectural Institute of Korea, 14, 231-240.
7
Yang, J.H. (2008). Examination of Air Clearness in Sickroom by Difference of Exhaust Opening position. Journal of Korean Institute of Architectural Sustainable Environment and Building Systems, 2(2), 8-14.
8
Kim, M.S., Kim, Y.G., Chung, K.S. (2010). Effect of supply and exhaust diffuser locations on ventilation performance. In Proceedings, the SAREK Summer Annual Conference, 317-323.
9
World Health Organization (WHO). (2021). Chapter 2. Air pollution. Geneva, Switzerland: World Health Organization.
10
ASHRAE STANDARD-129, 1997, RA 2002. (1997). Measuring air change effectiveness American Society of Heating, Refrigerating and Air-Conditioning Engineers.
11
Korean Agency for Technology and Standards. (2020). KS B 6879 Heat recovery ventilators.
Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 15
  • No :6
  • Pages :818-828
  • Received Date : 2021-12-06
  • Revised Date : 2021-12-27
  • Accepted Date : 2021-12-27
  • DOI :https://doi.org/10.22696/jkiaebs.20210069
Journal Informaiton Journal of Korean Institute of Architectural Sustainable Environment and Building Systems Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
Manuscript Submission
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close