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It has been reported about the energy saving performance of UFAD(under floor air distribution) system and NPC(night purge cooling) system respectively which are applied for commercial buildings. However, when two systems are used at the same time, the effect of heat transfer from floor plenum to slab may vary depending on the operating conditions of NPC. In this study, cooling energy demands were analyzed for building models with UFAD and NPC by using TRNSYS 17 program. UFAD was applied as a cooling system of the base building model, and the cooling energy demands were compared for 64 cases in which the operating time, supply airflow rate, and outdoor air temperature(To) of NPC. As a result, it was confirmed that the cooling energy demands were reduced to 30 ~ 80% level compared to UFAD alone, and in particular, the energy demand was reduced in proportion to the supply airflow rate or the operating time while To was 16 ~ 20℃. However, when To was 22℃, the increase in the supply airflow rate or the operating time results in a disadvantage in terms of cooling energy demands. In addition, the cooling energy demands for UFAD+NPC model were analyzed by applying weather data from three regions with different average outdoor air temperatures. As a result, the cooling energy demand of operating NPC only when To was below 20℃ was reduced by 27% compared to that of operating NPC continuously for 8 hours.

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기사명 저자명 페이지 원문 목차
창호의 성능인증 규격 기준과 면적 변화에 따른 에너지성능 비교분석 = A comparative analysys of window energy performance according to the difference between actual size and standard size 김성범, 이수열, 김동윤, 최원기 p. 49-60

사회적 할인율을 고려한 국내육상풍력발전 단지의 LCOE 분석 = Analysis of LCOE for Korean onshore wind farm considering social discount rate 이건우, 고경남 p. 1-13

가압식 바닥공조 시스템과 야간 외기냉방의 병용에 따른 에너지저감 성능에 관한 연구 = A study on energy saving performance by night purge cooling with pressurized under floor air distribution system 윤성훈 p. 25-33

염료감응형 태양전지(DSC)와 자연채광의 상관관계 분석 = A correlation analysis between DSC (dye sensitized cell) and daylighting : focusing on educational space : 교육공간을 중심으로 이응직 p. 35-47

개별건물 에너지소비량 보정기법 개발 및 적용방안 = Development and application of the calibration method of individual building energy consumption 김동일, 이병호 p. 15-24

참고문헌 (7건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
1 Ali Alajmi, Wid El-Amer, Saving energy by using underfloor-air-distribution (UFAD) system in commercial buildings, Energy Conversion and Management Vol. 51, pp. 1637-1642, 2010. 미소장
2 Influence of Lighting Loads upon Thermal Comfort under CBAD and UFAD Systems 네이버 미소장
3 Underfloor Air Distribution (UFAD) Design Guide, Bauman, ASHRAE, 2003. 미소장
4 Miura, K., Takemasa, Y., and Yoshida, H., Evaluation of thermal load reduction and effect to indoor environment by hybrid ventilation system, Journal of environmental engineering(Transaction of AIJ), Vol. 76 No. 660, pp. 159-168, 2011. 미소장
5 Jung, J. H., Consideration of Appropriate Thermal Storage Time of Air-Conditioning System with Slab Thermal Storage in an Office Building by Use of Measurement Value, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 22, No. 10, pp. 719-726, 2010. 미소장
6 Kim, S. Y., Won, J. K., Kim, J. H., and Song, D. S., Energy saving effect of the night purge control using ERV in a school building, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 28, No. 11, pp. 421-427, 2016. 미소장
7 Yoon, S. H., Jang, H. I., Kim, K. A., Yu, K. H., and Suh, S. J., An energy performance evaluation of UFAD system under the various conditions of thermal load, Korean journal of air-conditioning and refrigeration engineering, Vol. 25, No. 1, pp. 14-19, 2013. 미소장

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