DOI QR코드

DOI QR Code

하절기 스탠드 팬(선풍기)의 국부기류에 의한 온열 쾌적성 평가

Thermal Comfort Evaluation of Local Air Stream by a Stand Fan in Summer

  • 김연정 (서울시립대학교 건축공학과) ;
  • 여지은 (서울시립대학교 대학원) ;
  • 문선혜 (서울시립대학교 대학원) ;
  • 허정호 (서울시립대학교 건축공학과)
  • 투고 : 2016.04.12
  • 심사 : 2016.08.17
  • 발행 : 2016.08.30

초록

The recent studies on air movement have been focusing on positive aspects of indoor air movement on occupants' thermal comfort. Especially the thermal comfort regarding elevated air velocity in warm environment has been a hot topic of many papers. The purpose of this study was to define thermally comfortable operating conditions of a stand fan widely used in Korea. Measurement and questionnaire were conducted targeting the group of seated men and women group in their 20's. Airflow measurement has been carried out at a height of 0.6 m from the floor limiting to the case of air movement from the left side of the occupants. As a result, the comfort zone appears in $-1.2{\leq}PMV{\leq}+0.5$, in which thermal sensation is extended to the lower side than one($-0.5{\leq}PMV{\leq}+0.5$) in uniform air velocity suggested by ASHRAE Standard 55. Based on the survey from the group of men and women group in their 20's, this study suggested thermally comfortable operating conditions of the stand fan which could be applicable to the cooling strategy in warm environment such as spring, summer, and fall.

키워드

과제정보

연구 과제번호 : BK21플러스

연구 과제 주관 기관 : 서울시립대학교

참고문헌

  1. Jang, M., et al. (2001). Development of Thermal Comfort Sensation in the Variation of Air-velocity and Temperature in Air-conditioner. International Conference of The Korean Society for Emotion & Sensibility, 141-146.
  2. Arens, E., Turner, S., Zhang, H., & Paliaga, G. (2009). Moving air for comfort. ASHRAE journal.
  3. de Dear, R. J., Arens, E., Hui, Z., & Oguro, M. (1997). Convective and radiative heat transfer coefficients for individual human body segments. International Journal of Biometeorology, 40(3), 141-156. https://doi.org/10.1007/s004840050035
  4. Edward, W. M., et al. (1998). "Elements of Statistical Reasoning 2nd Edition", WILEY
  5. Houghten, F. C., Gutberlet, C., & Witkowski, E. (1938). Draft Temperatures and Velocities in Relation to Skin Temperature and FeAeling of Warmth. Heating, Piping and Air Conditioning, 10, 145-52.
  6. Hoyt, T., Schiavon, S., Piccioli, A., Moon, D., & Steinfeld, K. (2013). CBE thermal comfort tool. Center for the Built Environment, University of California Berkeley, http://cbe. berkeley.edu/comforttool.
  7. Nilsson, H., Holmer, I., Bohm, M., & Noren, O. (1999). Definition and theoretical background of the equivalent temperature. In CABCLI seminar dissemination of results from EQUIV-project, 31-40.
  8. Ogulata, R. T. (2007). The effect of thermal insulation of clothing on human thermal comfort. Fibres & Textiles in Eastern Europe, 15(2), 67-72.
  9. Olgyay, V. (2015). Design with climate: bioclimatic approach to architectural regionalism. Princeton University Press.
  10. Oliveira, A. V. M., Gaspar, A. R., Francisco, S. C., & Quintela, D. A. (2014). Analysis of natural and forced convection heat losses from a thermal manikin: Comparative assessment of the static and dynamic postures. Journal of Wind Engineering and Industrial Aerodynamics, 132, 66-76. https://doi.org/10.1016/j.jweia.2014.06.019
  11. Schiavon, S., & Melikov, A. K. (2009). Evaluation of the cooling fan efficiency index for a desk fan and a computer fan. In 11th International Conference on Air Distribution in Rooms.
  12. Standard, ASHRAE (2013). Standard 55-2013. Thermal environmental conditions for human occupancy.
  13. Sun, W., Cheong, K. W. D., & Melikov, A. K. (2012). Subjective study of thermal acceptability of novel enhanced displacement ventilation system and implication of occupants' personal control. Building and Environment, 57, 49-57. https://doi.org/10.1016/j.buildenv.2012.04.004
  14. Toftum, J. (2004). Air movement-good or bad?. Indoor Air, 14(s7), 40-45. https://doi.org/10.1111/j.1600-0668.2004.00271.x
  15. Yang, B., Schiavon, S., Sekhar, C., Cheong, D., Tham, K. W., & Nazaroff, W. W. (2015). Cooling efficiency of a brushless direct current stand fan. Building and Environment, 85, 196-204. https://doi.org/10.1016/j.buildenv.2014.11.032
  16. Yu, W. J., Cheong, K. W. D., Tham, K. W., Sekhar, S. C., & Kosonen, R. (2005). Draft sensation study in a space served by displacement ventilation system in the tropics. Beijing: Proceedings of Indoor Air.
  17. Zhai, Y., Zhang, H., Zhang, Y., Pasut, W., Arens, E., & Meng, Q. (2013). Comfort under personally controlled air movement in warm and humid environments. Building and Environment, 65, 109-117. https://doi.org/10.1016/j.buildenv.2013.03.022