Experiment of airflow uniformity in diffusion section of air conditioning boxes

Based on experimental programs, studies the influences of the orifice parameters and installed position of the rectifier on the uniformity effect. The results show that the smaller rectifier can achieve a better uniformity effect in the place closer to the fan outlet than that with longer distance, but for the larger rectifier the result is opposite. And it is shown that the larger rectifier obtains a better airflow uniformity than the smaller ones, while the uniformity effect of the rectifier taking up the full section of the air conditioning box is not as desirable as expected.