A Comparative Analysis of Energy Performance according to the Ventilation System in Apartment House

The purpose of this study was to comparative analyses of energy performance in apartment houses adopted window frame-type natural ventilation, under-floor air distribution ventilation and heat recovery ventilation. As the object of energy simulation, the three type ventilation system with area of was selected in apartment house. As a result, when the ECO2 simulation was performed, the 1st requirement quantity per annual were (CASE1, Natural Ventilation), (CASE2, Under-floor Air Distribution Ventilation) and (CASE3, Heat Recovery Ventilation).