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Assessment of Thermal Comfort in a General Hospital in Winter Using Predicted Mean Vote (PMV)

Predicted Mean Vote(PMV)를 이용한 겨울철 종합병원의 실내 온·열 환경의 평가

  • Lee, Boram (Department of Environmental Health Science, Graduate School of Public Health, Seoul National University) ;
  • Kim, Jeonghoon (Environmental Health Laboratory, Seoul Medical Center) ;
  • Kim, KyooSang (Environmental Health Laboratory, Seoul Medical Center) ;
  • Kim, Hyejin (Department of Environmental Health Science, Graduate School of Public Health, Seoul National University) ;
  • Lee, Kiyoung (Department of Environmental Health Science, Graduate School of Public Health, Seoul National University)
  • 이보람 (서울대학교 보건대학원 환경보건학과) ;
  • 김정훈 (서울의료원 의학연구소 환경건강연구실) ;
  • 김규상 (서울의료원 의학연구소 환경건강연구실) ;
  • 김혜진 (서울대학교 보건대학원 환경보건학과) ;
  • 이기영 (서울대학교 보건대학원 환경보건학과)
  • Received : 2015.06.05
  • Accepted : 2015.11.20
  • Published : 2015.12.28

Abstract

Objectives: A hospital is a complex building that serves many different purposes. It has a major impact on patient's well-being as well as on the work efficiency of the hospital staff. Thermal comfort is one of the major factors in indoor comfort. The purpose of this study was to determine thermal comfort in various locations in a hospital. Methods: Various indoor environmental conditions in a general hospital were measured in February 2014. The predicted mean vote (PMV) and carbon dioxide ($CO_2$) concentration were measured simultaneously in the lobby, office, restaurant, and ward. Results: The ward was the most thermally comfortable location (PMV=0.44) and the lobby was the most uncomfortable (PMV = -1.39). However, the $CO_2$ concentration was the highest in the ward (896 ppm) and the lowest in the lobby (572 ppm). The average PMV value was the most comfortable in the ward and the lowest in the lobby. In contrast, for concentration of carbon dioxide, the highest average was in the ward and the lowest in the lobby. Due to air conditioner operation, during operating hours the PMV showed values close to 0 compared to the non-operating time. Correlation between PMV and $CO_2$ differed by location. Conclusion: The PMV and concentration of carbon dioxide of the hospital lobby, office, restaurant and ward varied. The relationship between PMV and carbon dioxide differed by location. Consideration of how to apply PMV and carbon dioxide is needed when evaluating indoor comfort.

Keywords

References

  1. Samet J, Marbury M, Spengler J. Health effects and sources of indoor air pollution. Part I. The American Review of Respiratory Disease. 1987; 136(6): 1486-1508. https://doi.org/10.1164/ajrccm/136.6.1486
  2. Jones A. Indoor air quality and health. Atmospheric Environment. 1999; 33(28): 4535-4564. https://doi.org/10.1016/S1352-2310(99)00272-1
  3. Baek SO, Kim YS, Perry R. Indoor air quality in homes, offices and restaurants in Korean urban areas-indoor/outdoor relationships. Atmospheric Environment. 1997; 31(4): 529-544. https://doi.org/10.1016/S1352-2310(96)00215-4
  4. Berg SK, Flyvbjerg H. The colour of thermal noise in classical Brownian motion: a feasibility study of direct experimental observation. New Journal of Physics. 2005; 7(1): 38. https://doi.org/10.1088/1367-2630/7/1/038
  5. Dovjak M, Kukec A, Kristl Z, Kosir M, Bilban M, Shukuya M, et al. Krainer A. Integral control of health hazards in hospital environment. Indoor and Built Environment. 2013; 22(5): 776-795. https://doi.org/10.1177/1420326X12459867
  6. Verheyen J, Theys N, Allonsius L, Descamps F. Thermal comfort of patients: Objective and subjective measurements in patient rooms of a Belgian healthcare facility. Building and Environment. 2011; 46(5): 1195-1204. https://doi.org/10.1016/j.buildenv.2010.12.014
  7. Khodakarami J, Nasrollahi N. Thermal comfort in hospitals - A literature review. Renewable and Sustainable Energy Reviews. 2012; 16(6): 4071-4077. https://doi.org/10.1016/j.rser.2012.03.054
  8. Smith R, Rae A. Thermal comfort of patients in hospital ward areas. Journal of Hygiene. 1977; 78(01): 17-26. https://doi.org/10.1017/S0022172400055881
  9. Hwang RL, Lin TP, Cheng MJ, Chien JH. Patient thermal comfort requirement for hospital environments in Taiwan. Building and environment. 2007; 42(8): 2980-2987. https://doi.org/10.1016/j.buildenv.2006.07.035
  10. Khodakarami J, Knight I. Required and current thermal conditions for occupants in iranian hospitals. HVAC&R Research. 2008; 14(2): 175-193. https://doi.org/10.1080/10789669.2008.10391002
  11. Yau Y, Chew B. Thermal comfort study of hospital workers in Malaysia. Indoor air. 2009; 19(6): 500-510. https://doi.org/10.1111/j.1600-0668.2009.00617.x
  12. Wang F, Lee M, Cheng T, Law Y. Field evaluation of thermal comfort and indoor environment quality for a hospital in a hot and humid climate. HVAC&R Research. 2012; 18(4): 671-680.
  13. Skoog J, Fransson N, Jagemar L. Thermal environment in Swedish hospitals: Summer and winter measurements. Energy and Buildings. 2005; 37(8): 872-877. https://doi.org/10.1016/j.enbuild.2004.11.003
  14. Fanger PO. Assessment of man's thermal comfort in practice. British Journal of Industrial Medicine. 1973; 30(4): 313-324.