Abstract: In order to study the effect of the relative distance between the range hood and the cooker on the oil fume capture rate, a CFD multi-component model of a range hood is established by using the computational fluid dynamics (CFD) method, and the reliability of the CFD simulation model is verified by smoke emissions experiment. Based on the model, the oil fume capture rate of a range hood at different horizontal and vertical installation positions is calculated and analyzed. The calculation results show that the capture rate decreases obviously with the increase of the horizontal installation distance of the range hood, but the vertical installation distance has little effect on the capture rate. The results can be used to standardize and guide the after-sales installation of range hood products.

Key words: CFD, Range hood, Installation position, Oil fume capture rate