Indoor environment in rooms applied dynamic insulation windows in the cold region part2

Abstract

Thermal insulation performance of buildings is important. We focused on dynamic insulation system （DI）applied to windows which is conventionally poor thermal insulation performance. DI can decrease heat loss from building in winter, on the other hand it decreases indoor surface temperature because of venting cold outer air and it deteriorates indoor thermal comfort. To evaluate indoor thermal environment, we used Contribution Ratio of Indoor climate （CRI） which represents how each heat source in a room contributes to form local air temperature. According to numerical analysis results, CRI in a occupied area is small.