Abstract: In order to further reduce the working noise of the range hood and improve the user experience, based on the response surface optimization technology, through the parametric modeling of the impeller, three key parameters are determined as the key optimization objects according to the previous test data. taking the range hood’s working noise, anechoic chamber noise, maximum static pressure and stir-frying air volume as targets, multi-parameter and multi-objective test optimization is carried out. The analytical relationship between the parameters and the target is determined through 13 groups of test schemes, and the impeller parameters are given when the working noise, the noise of the anechoic chamber is the lowest, the maximum static pressure and the air volume of stir-frying are maximum. This method can find the global optimal solution of the problem in a given range.

Key words: Range hood, impeller, response surface, multi-objective optimization