The Transient Simulation of Carbon Dioxide Emission from Human Body Based on CONTAM

Among the many types of indoor pollutants, carbon dioxide has always been overlooked. This paper simulated and analyzed the variety of the concentration of indoor carbon dioxide of the office room over time under steady-state conditions of natural ventilation based on CONTAM, and aims to understand the impact of the human body as a pollution source on indoor air quality produce, as well as the role of ventilation to improve indoor air quality. For the natural ventilation of a room, the airflow paths of upstream own far more effect on IAQ than that of downstream, so it is very important to make sure that the airflow paths of upstream is smooth. Furthermore, natural ventilation is not an optimal approach to eliminate indoor pollution. The mechanical ventilation must be introduced to effectively guarantee the IAQ.