Abstract
In this study, an experiment was conducted with eight male subjects in a room equipped with all-air induction radiant air-conditioning system and convection air-conditioning system to investigate the influence of differences in airflow and noise generated from air-conditioning systems on the work efficiency of office workers during winter heating. The experiment was conducted under six different conditions of temperature, airflow, and noise by changing the air-conditioning equipment and its operation, and calculation and receipt classification tasks were carried out. The results showed that the subjects were aware of the differences in airflow and noise generated by the air conditioning system. For the airflow, however, there was no significant difference in the airflow comfort feeling. For the noise, it resulted in a decrease in the feeling of noise comfort. Under 22 °C condition, the number of answers to calculations tended to be significantly higher in the all-air induction radiant air-conditioning system operated with small supply air volume and low level noise than in the convection air-conditioning system. There was no significant difference in the percentage of correct answers among the same temperature conditions for both calculation and receipt classification.
https://ror.org/04chrp450 
