Journal of Guangdong University of Technology ›› 2020, Vol. 37 ›› Issue (03): 82-87.doi: 10.12052/gdutxb.190086

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A Numerical Simulation and an Analysis of Air Curtain Control Effect on PM2.5 in the Kitchen

Gan Yang-yang, Li Zhi-sheng   

  1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2019-06-26 Online:2020-05-12 Published:2020-05-21

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Abstract: Cooking in the residential kitchen is an important source of indoor PM2.5. In order to control PM2.5 effectively, the air curtain is proposed as an air supply means. A model of the kitchen is built and a numerical simulation, including airflow organization, temperature distribution and PM2.5 concentration distribution in the kitchen, is performed by using the Fluent software. A numerical simulation is performed to study the control effect of PM2.5 pollutants and heat flow in the kitchen. Three kinds of jet velocities are compared and analyzed. The results of this study show that the jet flow of an air curtain has a good wrapping effect on the cooking area, which can obstruct the diffusion of PM2.5 and the spread of heat flow. The PM2.5 removal rate can be increased to 44%~75%, and the average temperature in the kitchen can be lowered by 1~2 ℃ by using the air curtain to supply air. The control effect is optimal when the air curtain jet velocity is 0.6 m/s. The research productions have reference for the prevention and treatment of PM2.5 pollution in the kitchen and can provide simulation data and a theoretical basis for the study of the air curtain air supply system.

Key words: residential kitchen, fine particulate matter(PM2.5), numerical simulation, air curtain control

CLC Number: 

  • TU834.8
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