Adsorption of Indoor Carbon Dioxide by Applying Adsorbent in Car with Air-Recirculation Mode

초록

Many car drivers driving downtown area are complaining of bad air quality. To avoid the inflow of polluted air, air-recirculation mode is commonly chosen by drivers. However, the drivers may feel headache, sleepiness, and drowsiness during driving due to the increased concentration of carbon dioxide (CO2) in air-recirculation mode. Though the recommended CO2 concentration limit for indoor spaces is 1,000 ppm, the real CO2 concentration in car exceeds this limit as soon as the air-recirculation mode is turned on. CO2 concentration in car is strongly dependent on the number of passengers and the speed of car. CO2 concentration is much higher when more passengers are onboard, and the driving speed is lower. In this study, a CO2 adsorbent was applied to reduce the indoor CO2 in a car.