FORMATION MECHANISM OF CONTAMINANT CONCENTRATION DISTRIBUTIONS UNDER RE-CIRCULATION OF IN INDOOR AIRFLOW AND HVAC SYSTEM

DOI Web Site 16 References
  • LIM Eunsu
    Faculty of Science and Engineering, Toyo University
  • CHUNG Juyeon
    International College of Arts and Sciences, Fukuoka Women’s Univ.
  • ITO Kazuhide
    Faculty of Engineering Sciences, Kyushu University

Bibliographic Information

Other Title
  • 空調システムと室内気流の再循環を考慮した汚染物質濃度場形成メカニズム
Published
2022-07-01
DOI
  • 10.3130/aije.87.439
Publisher
Architectural Institute of Japan

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Description

<p>The purpose of this study is to investigate the effect of supply air return from the HVAC system on indoor air quality. We discuss the structure of the formation mechanism in local pollutant concentration distributions using various indices on the ventilation efficiency of a local domain in 3 rooms with different layout of the exhaust outlet location. As a result, when the percentage of the return air at the supply inlet becomes large, visitation frequency of pollutants on a target local domain increases exponentially, and then the averaged concentration of the pollutants of the local domain also increases exponentially.</p>

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