Abstract
In this paper, the air flow at the nozzle side and the column side were set up in a large space. The thermal environment of the two air supply modes were compared and analyzed by using the air diffusion performance index (ADPI), the draft sensation blowing index and so on. The results show that the uniformity of indoor air temperature and velocity of the column air supply is better than the nozzle; the percentage of dissatisfaction of the indoor average air blowing is less than that of the nozzle; The ADPI value of two airflow pattern changes with the air flow. The nozzle air supply shows a decreasing trend with the increase of air flow. The ADPI of the column air supply is higher than that of the nozzle, and both of them are less than 80%. Results of this paper provide a reference for airspace organization selection and the design of large space buildings.
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