Effect of different combinations of air temperature and airflow velocity on human comfort and work efficiency under the same thermal sensation environment

Creating the same thermal sensation environment using different combinations of air temperature and airflow velocity in a climate chamber, through the questionnaires and the tests of simulating typing work, studies the influence of different combinations of air temperature and airflow velocity on the comfort and work efficiency of the subjects. The results show that in warmer environment, airflow could improve thermal sensation and comfort significantly. When thermal sensation is the same, compared with lower temperature and still air, the thermal comfort, environmental acceptability and work efficiency of the subjects show no significant difference in an environment with higher temperature and airflow rate. It proves that a higher temperature environment with airflow is capable of maintaining acceptable comfort and good work efficiency in offices.