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The Indoor Simulation Of The Impact Of Formaldehyde In Indoor Air Distribution

Posted on:2011-10-16Degree:MasterType:Thesis
Country:ChinaCandidate:W P DengFull Text:PDF
GTID:2132360332957722Subject:Heating, Gas Supply, Ventilation and Air Conditioning Engineering
Abstract/Summary:PDF Full Text Request
With the rapid development of the technological and economic, modern living environment paid more and more attention. The quality of indoor air quality contacts with human health closely. New construction, decoration materials, promotion, and more use of household chemicals, resulting in serious indoor air pollution, formaldehyde is the most serious hazards of indoor air pollution and one of the most common pollutionts. Effective ventilation and a reasonable indoor air formaldehyde concentration organizations can easily meet the design requirements.This paper an application of Fluent in the turbulent flow of three-dimensional air-conditioned room. Adopt different entry velocities, the distance from entry to the top of room, the opposite locations of entries and exits to simulate the airflow in the room. The results of numerical simulation for many different kinds of airflow are expressed in streamline chart of airflow structure through Fluent software. Can not draw too much air speed, can not be too small, 2m/s-3m/s best: summarize the most effective height for the room air 15% -20% high; displacement ventilation can be more effectively remove indoor formaldehyde. The results show that specific combinations should be adopted to the specific circumstances in order to be able to produce uniform, did not form suitable for air dead.
Keywords/Search Tags:Airflow-organizing, Turbulence model, Temperature field, Velocity field, Formaldehy deconcentration field, Numerical simulation
PDF Full Text Request
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