Application of Hybrid Ventilation System using the Balcony Space in Apartment Housing

Recently, the ventilation for the removal of pollutants has received much attention in responseto the increased needs for the health and better comforts of the occupants in apartmenthousing. To provide constant ventilation air flow, constant airflow mechanical ventilationsystem is predicted to be installed, and the installation of such mechanical system would leadto many problems.The purpose of this study is to evaluate application of hybrid ventilation system using thebalcony space in apartment housing. As a result through research method, this paper beginswith a conceptive explanation of the hybrid ventilation system. Also, through the analysis ofthermal condition of balcony space and seasonal characteristics of ventilation in Seoul, thedesign condition of hybrid ventilation system is investigated. The simulation on hybridventilation mode showed that natural ventilation is possible 50.96% of time yearly. CFDsimulation result for the analysis of visible flow testing showed that the optimal ventilationmode was maintained smoothly during the intermediate period everywhere except in the roomnext to the kitchen. For the ventilation in summer and winter, mechanical ventilation wasdetermined to be adopted for the more ventilation airflow.