A review of heat recovery technologies and their frost control for residential building ventilation in cold climate regions

This study reviewed heat recovery technologies and their application in residential buildings cold climates. The increasing efforts on reducing building energy use over the recent years have resulted improved insulated airtight buildings. Reduced infiltration can result poor indoor air quality owing to insufficient ventilation rates. In climates, an energy-efficient mechanical system with provides controlled airflow rates thereby ensures healthy while using a limited amount of energy. is particular importance during heating season when windows doors are closed sustain thermal comfort. review examines various employed buildings, including state-of-the-art approaches adapted These were compared terms criteria. Frosting has been observed frequently exchangers used regions, which reduces performance. Various frosting control strategies discussed this prevention defrosting. Currently, available frost degrade or increased consumption. Finally, effects applying for addressed. Based current review, recommendations future research proposed. • Heat climates reviewed. defrosting discussed. issues reduced through moisture recovery. Ventilation results good comfort low use. Recommendation directions