Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Measurement of Indoor Air Quality for Ventilation with the Existence of Occupants in Schools

  • Shin Hee-Soo (Department of Mechanical Engineering, Pusan National University) ;
  • Lee Jai-Kwon (Department of Mechanical Engineering, Pusan National University) ;
  • Ahn Young-Chull (Department of Mechanical Engineering, Pusan National University) ;
  • Yeo Chang-Shin (Department of Mechanical Engineering, Pusan National University) ;
  • Byun Sang-Hyun (Department of Mechanical Engineering, Pusan National University) ;
  • Lee Jae-Keun (Department of Mechanical Engineering, Pusan National University) ;
  • Kang Tae-Wook (Air Conditioner Division, LG Electronics) ;
  • Lee Kam-Gyu (Air Conditioner Division, LG Electronics) ;
  • Park Hyo-Soon (Building Energy Research Team, Korea Institute of Energy Research (KIER))
  • Published : 2005.04.01
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Abstract

This paper evaluates the performance of ventilation for the removal of indoor pollutants as a function of ventilation rate and the number of occupants in a test room and school classroom. An experimental apparatus consists of a test room, a tracer gas supply system, a gas detector, and a fan for ventilation air supply with a controller. The ventilation performance is evaluated in a step-down method based on ASTM Standard E741-83 using $CO_{2}$ gas as a tracer gas in the test room of 35 $m^{3}.$ For the ventilation air flow rate of 1.0 ACH, a recommended ventilation flow rate of Korea school standard for acceptable indoor air quality in the case of one person, CO_{2}$ gas concentration decreases up to $55{\%}$ within 50 minutes without occupancy and increases up to $75{\%}$ in the case of one occupant. Also indoor air quality at the school classroom is investigated experimentally.

Keywords

References

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