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2018 Vol.12, Issue 2 Preview Page
Development of Passive Air Mixing Chamber for The Improvement of Air Mixing Ratio

공기조화기의 공기혼합률 개선을 위한 패시브 공기혼합상자의 개발

Seok-Young Lim1
,
Hyun-Jae Chang2*
임 석영1
,
장 현재2*
1Graduate School, Hongik University
2School of Architectural Engineering, Hongik University
1홍익대학교 대학원
2홍익대학교 건축공학부
*교신저자. *Corresponding Author. 
April 2018. pp. 101-111
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Abstract

Air mixing chamber in an air handling unit performs the role of mixing between return air and outdoor air. In general, it is assumed that RA and OA are fully mixed. However, in practice, incomplete mixing occurs and causes the temperature difference at the entrance of coil. It causes the problems such as the deterioration of heat exchange efficiency of coil and controllability. Furthermore, the outdoor air lower than freeze stat causes the freezing of coil in winter season. In order to solve these problems, this study intends to improve an air mixing ratio of air mixing chamber. CFD simulation and experiment were conducted for this purpose. The final design of air mixing chamber shows approximately 80% of air mixing ratio.

Keywords
Air handling unit
Air mixing chamber
Air mixing ratio
Pressure loss

키워드
공기조화기
공기혼합상자
공기혼합률
압력손실
References
1
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2
장현재. (2002). 자연환기병용하이브리드공조시에공조방식과오피스실내조건의변화가실내환경에미치는영향. 대한건축학회논문집. vol 18. 223-230.
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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 : 12
  • No :2
  • Pages :101-111
  • Received Date : 2017-12-01
  • Revised Date : 2018-03-25
  • Accepted Date : 2018-03-02
  • DOI :https://doi.org/10.12972/jkiaebs.20180009
Journal Informaiton Journal of Korean Institute of Architectural Sustainable Environment and Building Systems Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
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