This purpose of the study is to analyzed how difference the occupant thermal sensation when the window is opening and closing.
For the purpose, we conducted measurement and survey targeting 15 residential during summer season (2015.05 ~ 2015.08). As
a result, the window opening hour was increased with outdoor temperature when outdoor temperature between 20℃ and 25℃.
After 25℃, the window opening hour began to decrease. The occupant feel neutral when indoor temperature at 28℃, and when
the window is opening, the occupant have higher temperature tolerance compared with when the window is closing.