オフィス空間における非等温気流タスク空調方式の有効性

抄録

Subjective experiments with a desktop based task conditioning system were carried out to investigate the benefits of system in an office like chamber. The experiments were conducted under three different combinations of ambient air temperature and relative humidity, (1) 27℃/40%RH, (2) 30℃/40%RH, and (3) 30℃/70%RH. Each of 16 college age subjects was exposed to the three different experimental room air conditions. There were six supply air flow patterns for task air conditioning, which parameters included isothermal air flow and non-isothermal airflow with three different air velocities. Setting of task condition was fixed at first, and then the subjects were allowed to control the environment freely after certain period in the subjective experiments. Thermal sensation, airflow sensation, and other variable were investigated. The way the subjects controlled the task system was also monitored. It was considered that the task conditioning system could keep subjects thermally comfortable with their ambient temperature higher than condition without it. Questionnaire responses under the 'preferred air' condition revealed the importance of adjustment of task conditioning.