THE RESEARCH OF FUME POLLUTION AND OPTIMIZATION CONTROL IN TYPICAL CHINESE RESIDENTIAL KITCHEN

All over the world, Chinese restaurants can be found everywhere and the Chinese foods are famous.The Chinese food preparation procedure includes: frying, stir-frying, stew, etc. In the process of cooking,It releases large amounts of aerosol which is the mixture of vapor, PAHs (Polycyclic AromaticHydrocarbon), VOCs (Volatile Organic Compounds), etc. When the aerosol mixes with combustionexhaust-gas, the mixture becomes main air contaminant in kitchen. The contaminant deteriorateskitchen air quality, has drastic Mutagenesis, Teratogenesis and Carcinogenesis effects andinfluences the human body health. Taking a typical Chinese residential kitchen as an example, it isanalyzed in the paper the fume pollution status and also the different kinds of kitchen fume controlmethods. It points out that the kitchen exhaust hood is an efficient way. With the computational fluiddynamics (CFD) numerical simulation and field experiment verification, fume control performances ofdifferent exhaust hood are compared. By the changing of hood configurations and airflow modes, it isput forward a new energy-conservation kitchen exhaust hood in this paper.