| Keywords |
Transient environment ; Air comfort ; Personal comfort device ; Fan ; Factor analysis |
| Abstract |
The aim of this research is to find out what kind of wind people prefers when they use electric fan in summer. For achieving this goal, we explored the image of comfortable wind by clarifying subjects’ image structure to breeze from electric fans. The chamber experiment was conducted with 26 people and the questionnaire about airflow image was constructed by integrating the previous researches. The results of this study are as follows. First, right after turning on the fan, subjects felt the highest air comfort. Second, as a result of factor analysis to determine image structure of wind from electric fan, four factors were derived; ‘Preference & tactility’, ‘Speed & clarity’, ‘Movement’, and ‘Humidity’. Among them, ‘Movement’ factor’s reliability score was low for the airflow image evaluation. Therefore, the questionnaire for air image needs to be modified. Finally, people felt comfortable anytime when the airflow gave them openness and fresh feeling. On the other hand, soft and light feeling airflow could not make people comfortable in early stage, but it gradually gave them comfortable feeling as time passed. Therefore it will allow users to be provided better comfort continuously, developing a fan algorithm which is changing over time. |