Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Study on Thermal Comfort and Indoor Air Quality in the Classroom with System Air-conditioner and Ventilation System for Cooling Loads

시스템에어컨과 환기시스템 설치 강의실에서 냉방시 열쾌적성 및 실내공기질 연구

  • 노광철 (서울시립대학교 대학원 기계정보공학과) ;
  • 장재수 (LG전자 DAC연구소) ;
  • 오명도 (서울시립대학교 기계정보공학과)
  • Published : 2006.01.01
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Abstract

The experimental and the numerical study was performed on the comparison of thermal comfort(TC) and indoor air quality(IAQ) in the lecture room for cooling loads when the operating conditions are changed. PMV value and $CO_2$ concentration of the lecture room were measured and compared with the numerical results. The numerical results showed a good agreement with the experimental one and then the numerical tool was used to analyze thermal comfort and IAQ for a couple of operating conditions. As a result it was found that the increment of the discharge angle of system air-conditioner makes TC uniformity worse, but rarely affects IAQ. Also TC and IAQ were hardly affected by the variation of the discharge airflow. Finally it turned out that TC is merely affected by the increment of the ventilation airflow, but the average $CO_2$ concentration can be satisfied with Japanese IAQ standards of classrooms when the ventilation airflow is more than $800m^3/h$ in this study.

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References

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