The Journal of Sustainable Design and Educational Environment Research (교육녹색환경연구)

Korean Institute of Sustainable Design and Educational Environment (한국교육녹색환경연구원)
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Computer Simulation on the Thermal Environment by the Diffusion temperature and Diffusion Angle of Ceiling Type Air Conditioner in Classroom

교실에서의 천장형 냉난방기의 취출온도 및 취출각도에 따른 열환경 시뮬레이션

  • 박효순 (한국에너지기술연구원 건물에너지팀) ;
  • 박승익 (우송대학교 건축공학과) ;
  • 이상혁 (우송공업대학 건축설비학과) ;
  • 이감규 (LG전자디지탈어플라이언스)
  • Published : 2004.12.31
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Abstract

Research has been carried out to study thermal environment in a classroom under three kinds of air diffusion temperature and six kinds of air diffusion direction for ceiling type air conditioner. The velocity and temperature distributions of air in the room calculated by 3-dimensional numerical method(PHOENICS), This present study was also conducted to calculate the Air Diffusion Performance Index(ADPI) for cooling conditions and Predicted Percentage of Dissatisfied(PPD) for heating conditions. This analysis shows that the optimum angle of ceiling type air conditioner's diffusion is $15{\sim}30^{\circ}$ for cooling mode and about $15{\sim}45^{\circ}$ for heating mode in these calculating conditions. And also analysis has been carried out to evaluate thermal comfort of vertical and horizontal cross section of classroom.

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