Computer modeling and simulation of carbon dioxide indoor concentration

Abstract

Indoor pollutant concentration is more significant for human health than the outdoor atmosphere because people spend most of their time in buildings. There is pollutant concentration enhancement, relative humidity, mould reproduction and rise of environment not corresponding to human organism needs because of insufficient ventilation. Indoor air quality depends on many factors. Carbon dioxide is the most important indoor pollutant whether the pollutant source is presented only by people. There is overview of software enabling carbon dioxide modeling and simulation and also program CONTAM 2.4 using in my paper. It means multizone modeling where at the single zone is obtained carbon dioxide concentration thanks to geometry, openings, ventilation and pollutant sources interpolation. There were chosen three spaces for simulation of occupied flat. The results show that CO2 concentration run is similar to interior occupation. Increasing time of concentration to constant value and decreasing time of concentration to ventilation air concentration depend on room volume.