Atmospheric Photochemical Smoke Chamber
Photochemical smoke chamber for atmospheric environmental chemical simulation research can not only exclude the influence of complex meteorological, topographic and other factors.
Therefore, under controllable and repeatable conditions, simply simulate the chemical process in the atmosphere to extract the essence of the atmospheric chemical reaction, and obtain the mechanism mechanism of the reaction.
Furthermore, atmospheric chemistry models can be developed and verified, and the research results will provide a scientific basis for the formulation of air pollution prevention and control countermeasures.
Primary pollutants such as hydrocarbons and nitrogen oxides discharged into the atmosphere from pollution sources such as automobile factories undergo chemical reactions under the action of sunlight to generate secondary pollutants such as ozone, aldehydes, ketones, acids, and peroxyacetyl nitrates. The smog pollution phenomenon formed by the mixture of primary pollutants and secondary pollutants in the photochemical reaction process is called photochemical smog.
Types of the chamber:
Photochemical smoke chamber at home and abroad are divided into two types: indoor and outdoor. The advantage of the outdoor smoke box is that it can directly utilize sunlight. The disadvantage is that the light intensity changes with the change of natural conditions, and the surrounding environment is constantly changing. Constant changes and difficult control of temperature, humidity, light intensity, etc. make the reproducibility of smoke chamber experiments poor.m The indoor smoke chamber can provide precise control of temperature, humidity and other factors, and the repeatability of the experiment is good. However, because the emission spectrum of artificial light sources cannot be the same as that of sunlight in all wavelength bands, some photochemical reaction rates measured are deviated from those obtained under sunlight.
Parameters of the chamber:
Inner chamber size: ranging from 60L to 100 cubic meters
Reaction chamber material: It is composed of polytetrafluoroethylene material
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