Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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A Study on the Comparison Analysis of Minimum Airflow Control Logic of VAV Terminal Box

VAV 터미널 박스의 최소풍량 제어방식 비교 연구

  • Cho, Young-Hum (School of Architecture, Kumoh National Institute of Technology) ;
  • Kang, Su-Hyun (School of Architecture, Kumoh National Institute of Technology) ;
  • Seong, Yoon-Bok (Korea Institute of Construction & Transportation technology Evaluation and Planning)
  • 조영흠 (금오공과대학교 대학원 건축학부) ;
  • 강수현 (금오공과대학교 건축학부) ;
  • 성윤복 (한국건설교통기술평가원)
  • Received : 2012.08.01
  • Accepted : 2012.08.22
  • Published : 2012.08.30
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Abstract

The minimum airflow of VAV terminal boxes is a key factor for comfort, indoor air quality(IAQ) and energy cost. If the minimum airflow is not reasonable, it would waste energy and make IAQ problems. There are two types of VAV terminal box control logic. One is the single maximum, another is the dual maximum control logic. Dual maximum control logic is more efficiency way to reduce the energy consumption. It has a minimum airflow set point and a heating maximum set point. It allows the minimum airflow set point to be much lower than single maximum control logic. A building simulation was conducted to evaluate the energy consumption and the IAQ according to the control logic of the V AV terminal box. In the simulation, dual maximum control logic can save the energy up to 6.5% compared to the single maximum control logic.

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References

  1. ASHRAE, 2001, Thermal Comfort, ASHRAE Fundamentals Handbook, Ch.8
  2. ASHRAE, 2004, ASHRAE Standard 55-2004, Thermal environmental conditions for human occupancy
  3. ASHRAE, 2004, ASHRAE standard 62-2004, Ventilation for Acceptable Indoor Air Quality(IAQ)
  4. ASHRAE, 2001, ASHRAE Fundamentals Handbook, Ch. 45
  5. Cho, Y.H.,and M. Liu.,2009, Minimum Airflow Reset of Single Duct VAV Terminal Boxes, Building and Environment, v.44 n.9, pp.1876-1885 https://doi.org/10.1016/j.buildenv.2009.01.001
  6. Cho, Y.H., and M. Liu., 2010, Application of terminal box optimization of single-duct air-handling units, International Journal of Energy Research, v.34 n.1, pp.54-66 https://doi.org/10.1002/er.1544
  7. Chen, S. and S. Demster,1996, Variable Air Volume Systems for Environmental Quality, McGraw-Hill
  8. Energy Design Resources, 2009, Advanced Variable Air Volume VAV System Design Guide
  9. Lee, H., Choi, B.J., and Kim, Y.S., 1997, A Study on the Optimum Supply Air Volume for Energy Conservationin VAV System Zoning, Proceeding of Autumn Annual Conference of the Architecture Institute of Korea(Planning & Design), v.17 n.6, pp.831-838
  10. Kang, S.H.,Yu, S.W., and Cho, Y.H., 2011, The Analysis of Energy Performance and Thermal Comfort for the Dual Maximum Control Logicatthe VAV Terminal Box, Proceeding of Autumn Annual Conference of Korean Institute of Architectural Sustainable Environment and Building System, pp.105-108
  11. Office Occupancy, Schedule for Occupancy, User's Manual for ANSI/ASHRAE/IESNA Standard90.1-2004
  12. Seo, J.U., and Huh, J.H, 2002, Energy Performance Analysis through Supply Fan's Control Strategies for the VAV System in the Cooling Season, Proceedings of the SAREK 2002 Winter Annual Conference, pp.419-424