Interior Decoration Materials, Formaldehyde Emission Law Simulation And Control Techniques

With the development of people's life level, people pay more attention to the decoration materials. Current research has shown that decoration materials, which send formaldehyde,benzene and benzene homologue,volatile organic compounds,ammonia and radioactive materials, are the source of the pollutants that harm to people's health. The risk of disease has a positive correlation with its concentration. It is very important to reduce the concentration of the harmful gases to institute a more health environment.The study of reduction indoor harmful gas concentration are focus on the control the pollution,enhance indoor air ventilation and prolong the residence date, but are fewer about the concentration of harmful gases of indoor and the location of the furniture.This paper contrary to the formaldehyde, the software of FLUENT was used to model the simulation of formaldehyde concentration in the office. Through the simulation research of formaldehyde, this paper could achieve the purpose of guiding the dispose of furniture,reducing the formaldehyde which is generated by decorating.The main contents of this paper are as follows:1. The kinds of the decoration materials are introduced, the furniture is the key research object. The factors that affect the release of formaldehyde furniture and the release mechanism of the formaldehyde are analyzed.2. The software of FLUENT was used to model the simulation of formaldehyde concentration in the office. This research chose a office bookcase and a bureau as the source of the pollution, a formaldehyde-proliferation typical office was chosen as the main object of the research, and the model are built. These three sources of the pollution was designed, the models were established respectively. And the distribution of formaldehyde concentration is simulated in the given ventilation mode.3. In indoor and ventilated circumstance of certain mode, the indoor formaldehyde concentration are relate to the layout of furniture, Through the different program of furniture layout, Formaldehyde concentration within the local is stimulated and calculated. Point to the frequent activities local formaldehyde concentration as the reference, Best furniture interior layout scheme is obtained. Thereby reducing the body's absorption of formaldehyde4. Formaldehyde concentration in a confined space generally higher than the air space. Formaldehyde in indoor air was beneficial to the spread of pollution. The high concentration of indoor formaldehyde, Apart from pollution sources nearby, mainly concentrated in areas where ventilation is not good. By the influence of the quantity of pollutants, distance sources of distance and room air flow state, there are differences within the local concentration of formaldehyde in a relatively confined space. Follow these general rules, In the whole room, pollutants quantity relatively more areas of the formaldehyde concentration is higher, Sources close to the area from the high concentration of formaldehyde, The formation of the gas flow in the indoor whirlpool and wind speed small area of high concentration of formaldehyde.5.At last, some prevention and control technologies were provided from the aspects of interior decoration materials of pollutant sources of formaldehyde,formaldehyde pollution control technologies,the development of green building materials and scientific and reasonable decorating. Corresponding, some management measures were proposed.