Study on the Strategies to Control CO2 Concentration in Passenger Car

초록

The indoor air quality in the passenger cabin, especially subway cabin, is gaining wide attention nowadays. Because carbon dioxide (CO2) is a representative indicator of ventilation, the control of CO2 concentration is very important. The ventilation is one of the easiest ways to control CO2 concentration. But, the ventilation may cause the intake of particulate pollutants in subway tunnels, and the loss of a lot of cooling and heating energy. Furthermore, although CO2 is known to be non-toxic, but CO2 may cause many adverse effects like headache and drowsiness leading to the discomfort in the cabin. For these reason, peoples’ interests on a new technology, to control indoor CO2, is increasing. In this study, a new adsorption method to control indoor CO2 was presented. And, the CO2 removal performance of CO2 adsorption system in a 24 m3 environmental chamber was also presented. By using this system, CO2 concentration in the chamber could be lowered less than 1,000 ppm in a short time.