Experiment on the effect of natural ventilation on cooling energy conservation

摘要

Recently, natural ventilation, which is traditional cooling method in Japan, has become considered as the key method for cooling energy conservation. We have carried out experiments to measure indoor thermal environment and cooling electric energy consumption in experimental RC construction apartment house by simulating occupants' life-style including thermal control with natural ventilation and air conditioner. And based on the experimental results, we estimated cooling electric power consumption from July to September. The results suggest that cross ventilation could reduce cooling electric power consumption of the experimental dwelling by 56% while single-sided ventilation could reduce it by 41%.