Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title Experimental Analysis of Thermal Comfort of an Office Space for Ceiling and Floor Supply Air Conditioning Systems
Authors 조용 ; 권혁승 ; 김성현 ; 김영일
Page pp.810-816
ISSN 12296422
Keywords Ceiling supply air conditioning system ; 천장 급기 공조 시스템 ; Floor supply air conditioning system ; 바닥 급기 공조 시스템 ; Thermal comfort ; 온열 쾌적도 ; Predicted mean vote ; 예상 온열감 ; Cooling ; 냉방 ; Office ; 사무실
Abstract Thermal comfort plays an important role in modern office buildings. Four major factors affecting thermal comfort are air temperature, velocity, humidity and radiation temperature. Distribution of these thermal factors in indoor space depends largely on the air flow which is related to the method of supplying and extracting air. In this study, an experimental analysis on indoor thermal comfort is conducted to study the difference between a ceiling supply cooling system and a floor supply one. The two cooling systems are applied to an office space during summer season and the distributions of temperature, velocity, radiation temperature and PMV are measured. Results show that the floor supply cooling system is superior in terms of thermal comfort and energy saving. Studies need to be done, however, to reduce the vertical temperature difference of a floor supply air conditioning system.