Influence of diffuser plate types on air distribution in clean rooms

In order to find the air distribution law of clean rooms, the types of diffuser plates at the air supply outlet in clean air conditioning systems are studied based on CFD simulation and field measurement, and the influence rules of different diffuser plate types on air distribution in clean rooms are analysed. The results show that when the clean room space layout, air supply temperature and air supply speed are the same, the average temperature of the clean room is 21.26 ℃, which is closer to the set temperature and only deviates from 1.24% when the square strip louver uniform flow diffuser plate is used, the average wind speed of the clean room is lower, at 0.159 m/s when the square circular hole striped diffuser plate is used, and the average wind speed difference between the two types is 11.3%. Therefore, in practical applications, if the clean room demand is more inclined to the accuracy of temperature control, the square strip louver uniform flow diffuser plate can be chosen, and if the demand is more inclined to the stability of the airflow, the square circular hole striped diffuser plate can be chosen.