EVALUATION OF TEMPERATURE DISTRIBUTIONS ANDAIRFLOW PATTERNS WITH THREE AR DIFFUSING SYSTEMS INHEATING PEWOD

摘要

This study is to investigate the characteristics of indoor air temperature distributions andairflow patierns with three air difising systems in heating period and to find the methodswhich can predict those indoor environmental conditions effectively. A series ofmeasurements and corresponding numerical analysis were done.Selected three air diffising systems for this study areas follows; 1) ceiling supply-ceilingexhaust, 2) ceiling supply-floor exhaust, 3) floor supply-ceiling exhaust.As a result, ceiling supply-floor exhaust system and floor supply-ceiling exhaust systemshowed similar temperature difference between supply air and occupied area. Floor supplyceilingexhaust system resulted in nearly uniform air temperature throughout the room andhigh ventilation effectiveness was obtained.