JAUE2014-053 Survey on Eco Housing in Bungotakada City, Oita Prefecture Research on the improvement of summer comfortability by innovative ways of living

Abstract

The purpose of this study was to measure indoor temperatures and humidity levels and surface temperatures with windows closed and solar shading thoroughly conducted, in order to investigate how well the indoor environment improves and to report important points for the eco housing.
 We see that when windows are kept closed and solar shading is conducted, the sun’s impact on indoor temperatures is less than when windows are kept open with no solar shading, with no days reaching 30°C in August. The difference in temperature between the child’s room and living room is also smaller. 
The basic rule for comfort is to prevent indoor heat. This study showed the effectiveness of using solar shading and closing windows during the day to prevent the hot outdoor air from entering. The study also showed the effectiveness of night purge ventilation to help decrease indoor temperatures at night and cool down the heated framework of the house, as well as the effectiveness of fans. We can say a lifestyle with these measures can realize a comfortable indoor environment without the use of air conditioners even during the hottest month of the summer.