설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제25권1호
  • /
  • Pages.14-19
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  • 2013
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
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실내 부하조건에 따른 바닥공조 시스템의 에너지 성능 평가

An Energy Performance Evaluation of UFAD System under the Various Conditions of Thermal Load

  • 윤성훈 (한국건설기술연구원 그린빌딩연구실) ;
  • 장향인 (인하대학교 건축공학과) ;
  • 김경아 (한국건설기술연구원 그린빌딩연구실) ;
  • 유기형 (한국건설기술연구원 그린빌딩연구실) ;
  • 서승직 (인하대학교 건축공학과)
  • 투고 : 2012.10.15
  • 발행 : 2013.01.10
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초록

The present study has been conducted for evaluating and comparing the performance of the underfloor air distribution system(UFAD) and the ceiling based air distribution system(CBAD) under cooling condition. Simulations and experiments were carried out for verifying the model by TRNSYS program about UFAD and CBAD. The results of simulation for various conditions of thermal load are summarized as followings. UFAD had an advantage for making thermal comfort because of lower temperature of the floor surface. Moreover, UFAD showed lower fan power about 30~50% than CBAD under the same conditions of thermal load. The energy saving rates of UFAD were increased to 17.7% in proportion to the thermal load on unoccupied zone(lighting). Ultimately, additional investigations should be done for analyzing optimized operating conditions of UFAD with considering the thermal performance of building envelop and the thermal load.

키워드

참고문헌

  1. Bauman, F. and Webster, T., 2001, Outlook for underfloor air distribution, ASHRAE Journal, Vol. 43, pp. 18-25.
  2. Webster, T., Bauman, F., and Reese, J., 2002, Underfloor air distribution : Thermal stratification, ASHRAE Journal, Vol. 44, pp. 28-36.
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  4. Bauman, F., 2003, Underfloor Air Distribution (UFAD) Desing Guide, ASHRAE Inc.
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  8. Chung, J. D., Hong, H. K., and Yoo, H. S., 2010, Analysis on the impact of MRT for the thermal comfort of UFAD, Energy and Buildings, pp. 2353-2359.
  9. Chae, Y. T., Moon, H. J., Sohn, J. Y., Ahn, B. W., and Park, B. Y., 2000, Comparative Evaluation of Indoor Thermal Environment and Energy Consumption between Ceiling-Based System and Floor-Based System in Cooling Period, Journal of AIK, pp. 101-108.
  10. Yu, K. H. and Song, K. D., 2007, A Study on Design Techniques and Effectiveness in Energy Saving of Occupied Zone in UFAD System, Journal of the Korean Solar Energy Society, pp. 127-133.
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피인용 문헌

  1. Influence of Lighting Loads upon Thermal Comfort under CBAD and UFAD Systems vol.8, pp.6, 2015, https://doi.org/10.3390/en8066079