jailcd2024056: The Impact of Natural Ventilation on Indoor Temperature of Detached Houses in Different Climate Zones in Japan

Abstract

This study analyzes the potential of natural ventilation and its impact on indoor temperature and cooling energy consumption in detached houses across different climate zones in Japan. By analyzing meteorological data and using the BEST simulation software, the effects of different window opening areas on natural ventilation are simulated, and ventilation strategies are formulated for each climate zone. The study found that the peak months of natural ventilation potential vary by region, with zones 1-5 concentrated in summer and zones 6-8 in the transition season. Energy savings in detached residential buildings range from 10% to 40% in different climate zones. In climate zone 6, the annual energy saving is about 35MJ/m2, while in zone 7, it is about 100MJ/m2, and in zone 8, it can exceed 200MJ/m2, demonstrating significant energy-saving potential. This provides an opportunity for the application of natural ventilation in detached houses across different climate zones in Japan.