The Research On Residential Kitchen Indoor Air Quality Optimization Control

Kitchen is one of the main contamination source in residential room. In the kitchen operation process, it will produce a mass of air contamination. The process, especially fuel combustion and food disposal, give off large amount of organic and inorganic air contamination, such as VOCs, PAHs, CO, SO_x, NO_x, and so on. The contamination have drastic "cancer-inducing", "mutation-inducing" and "monstrosity -inducing" effect, so they badly affect people health. Driven by the heat pressure, the air contaminations diffuse to personnel work area by certain velocity and deteriorate the kitchen indoor air quality. Accordingly, the control of cooking oil fume turns into the key for kitchen IAQ optimization control. As the in common use cooking oil fume control measure, the mechanical ventilation which utilizes the kitchen exhaust hood or exhaust fan as dynamical facility has been widely used in residential kitchen. The dissertation takes kitchen exhaust hood as research object, analyses its cooking oil fume control performance.Taking the representative residential kitchen as computational physical model, it makes use of numerical simulation method, introduces CFD simulation technique, computes the kitchen space airflow velocity field that under the effect of different exhaust hood and different operation condition. The dissertation field observed the cooking oil fume control perfonnance of different exhaust hood operation condition in a certain residential kitchen. Taking the kitchen as computational physical model, it uses the numerical simulation method to simulate velocity field, which under the effect of these conditions.It mainly studies hereinafter several questions: 1. It analyses cooking oil fume component and its harm to human body, compareseveral kinds of cooking oil fume control system and analyses factors that affect...