Workers' Behavior and Thermal Sensation in Task-conditioned Office

Field survey in the M-Office which installed Task/ambient conditioning systems (hereinafterreferred to as the TAC) was conducted in 2005 and 2006. It was intended to investigate theinfluence of the worker's behavior and task-conditioning to workers comfort sensation. Inthis survey, immediately thermal environment and workers behavior were measured, andquestionnaire to occupants who worked as usual were conducted. We found that both activitylevel of occupant and exposed thermal environment is greatly different one by one. It wassuggested that an increase in metabolic rate according to workers behavior influence onthermal and comfort sensation certainly. It is necessary to recognize the metabolic rate toestimate the occupants declaration in a field survey. In an actual office where occupants staylong terms, the tendency that occupant prefer isothermal airflow was seen. It was thought thatadjustment performance with wide amount of task air-conditioning airflow and operationalitywas desirable to cover occupants sense integrally or to connect with occupants comfort andsatisfaction. Based on the knowledge obtained from this investigation, needs for TAC werediscussed.