INVESTIGATION OF INDOOR TVOCS CONCENTRATION DISTRIBUTION UNDER TWO TYPICAL VENTILATION MODES

摘要

TVOCs (total organic compounds) emission process of the drying building material belongs to interior control diffusion mode, so it influences IAQ (indoor air quality) in a long-term. TVOCs emission process and the ventilation mode are the main factors to influence the indoor contaminant distribution. To research the TVOCs concentration distribution, the different diffusion coefficients and inlet velocities are set under a side supply air system and a displacement ventilation system. According to the simulation results, the average exposure concentrations of the occupant zones with time are presented and the TVOCs distribution features are analyzed.These simulations and analysis are helpful for further research of healthy building materials and designing proper ventilations.