Journal of the Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회논문집)

Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회)
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Operation Cost Comparison of Dedicated Outdoor and Cooling + reheating Air-conditioning Systems by On-site Performance Test

현장성능시험에 의한 외기전용과 냉각식 + 재열 공조기의 운전비 비교

  • Kim, Young-Il (School of Architecture, Seoul National University of Science and Technology) ;
  • Kim, Jung-Min (Graduate School of Housing, Seoul National University of Science and Technology) ;
  • Chung, Kwang-Seop (School of Architecture, Seoul National University of Science and Technology) ;
  • Park, Seung-Tae (Air-Tech Engineering Co. Ltd.)
  • 김영일 (서울과학기술대학교 건축학부) ;
  • 김정민 (서울과학기술대학교 주택대학원) ;
  • 정광섭 (서울과학기술대학교 건축학부) ;
  • 박승태 ((주)에이티엔지 기술연구소)
  • Received : 2011.10.14
  • Accepted : 2011.11.21
  • Published : 2011.12.01
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Abstract

Dedicated outdoor air(DOA) system which conditions the outdoor air separately is superior to conventional Cooling + reheating system with respect to energy consumption and indoor comfort. Since the sensible and latent load characteristics of indoor and outdoor are different, it is more efficient to treat them separately. In this study, cycle analysis and on-site performance test of DOA system have been conducted. The study shows that DOA requires 50% less equivalent energy than the conventional system. The on-site performance test of a prototype shows that the coefficient of performance(COP) of the DOA system is 37% higher than the conventional system.

Keywords

References

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