고층 공동주택 환기시스템의 결빙방지 방안 및 열공기 환경 개선에 관한 연구

Abstract

This research suggests improved ventilation system heat-air enviroment and antifreezing during winter season As the building become high-raised and air-tight, ventilation is necessary in order to control indoor air quality. There is ventilation system be equipped by law. There are civil complaints be increased about occurring dew condensation and freezing since current ventilation system which focused only air quality and energy-saving, not considering nature of Korea's winter season. In this report suggests fundamental solution that can be used in plan and constructing stage through simulation and experiment based on base data in order to solve civil complaints. This report confirmed that the air-tight damper is necessary to solve occurrence of dew condensation and freezing status due to exposure of moisture by stack effect when ventilation system is off. also compared solutions of reducing freezing status of air-tight damper operation part which allows to open air-tight damper when ventilation system is start up. Lastly, suggested construction method of duct systems in order to improve air quality and temperature distribution uniformly when ventilation system in normal running condition. With the research result, this suggested process of ventilation system can be examined when designing and constructing. Also suggests fundamental solution for possible problems can be occur at the high floor of high-rise building in winter season while ventilation system is stop/start up/running.