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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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An Experimental Study on the Ventilation Characteristics of a Wind-Turbine Natural Ventilator According to the Outdoor-Wind Velocity and the Indoor/Outdoor-Temperature Difference

윈드터빈 자연환기 장치의 외기풍속 및 온도차에 따른 환기특성에 관한 실험연구

  • Han, Dong-Hun (Masan Technical High School) ;
  • Kim, Yeong-Sik (DAE SUNG AIR TECH. CO.) ;
  • Chung, Hanshik (Department of Energy and Mechanical Engineering, Institute of Marine Industry, Tongyeong City, 53064, Gyeongsang National University) ;
  • Jeong, Hyomin (Department of Energy and Mechanical Engineering, Institute of Marine Industry, Tongyeong City, 53064, Gyeongsang National University) ;
  • Choi, Soon-Ho (Department of Energy and Mechanical Engineering, Institute of Marine Industry, Tongyeong City, 53064, Gyeongsang National University)
  • 한동훈 (마산공업고등학교) ;
  • 김영식 (대성에어테크) ;
  • 정한식 (경상대학교 에너지기계공학과 해양산업연구소) ;
  • 정효민 (경상대학교 에너지기계공학과 해양산업연구소) ;
  • 최순호 (경상대학교 에너지기계공학과 해양산업연구소)
  • Received : 2016.07.12
  • Accepted : 2017.01.15
  • Published : 2017.04.10
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Abstract

With the improvement of living standards, the ventilation for the mitigation of indoor or outdoor air-pollution problems has recently attracted a lot of attention. Consequently, the ventilation for the supply of outdoor fresh air into a room is treated as an important building-design factor. The ventilation is generally divided into the forced and natural types; here, the former can control the ventilation rate by using mechanical devices, but it has the disadvantages of the equipment costs, maintenance costs, and noise generation, while the latter is applied to most workshops due to the absence of noise and the low installation and maintenance costs. In this experimental study, the ventilation performance of a typical rotating-type natural ventilator, which is called a "wind turbine," was investigated with the outdoor-wind velocity and the indoor/outdoor-temperature difference. From the experiment results, it was confirmed that the temperature difference of $10^{\circ}C$ corresponds to the ventilation driving force with an outdoor-wind velocity of 1.0 m/s. Additionally, the intake-opening area of a building also exerts a great effect on the ventilation rates.

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References

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