전열교환 환기시스템의 운전 상태에 따른 결로 발생에 관한 연구

Heat-recovery ventilators are being adopted in most newly built apartment houses for energy reduction and indoor environment improvement. In winter, however, the dew condensation resulting from the difference between the indoor and outdoor temperatures may reduce the ventilator.s performance and threaten the health of indoor residents. This study analyzes the occurrence of dew condensation according to the ventilator.s operational conditions and the changes of temperature and products. The experimental results show that condensations is formed at 26℃ and 60%R.H, which is an unfavorable climatic condition, and when the damper is not closed tightly. Therefore it is important to ensure damper performance to prevent back flow.